Shell Selection of the Hermit Crab, Pagurus Longicarpus Say (Crustacea: Decapoda: Paguroidea), in Response to Acid-Treated Shells: a Laboratory Study1
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Taxonomic Study of the Pagurus Forbesii "Complex" (Crustacea
Taxonomic study of the Pagurus forbesii "complex" (Crustacea: Decapoda: Paguridae). Description of Pagurus pseudosculptimanus sp. nov. from Alborán Sea (Southern Spain, Western Mediterranean Sea). GARCÍA MUÑOZ J.E.1, CUESTA J.A.2 & GARCÍA RASO J.E.1* 1 Dept. Biología Animal, Fac. Ciencias, Univ. Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain. 2 Inst. Ciencias Marinas de Andalucía (CSIC), Av. República Saharaui, 2, 11519 Puerto Real, Cádiz, Spain. * Corresponding author - e-mail address: [email protected] ABSTRACT The study of hermit crabs from Alboran Sea has allowed recognition of two different morphological forms under what had been understood as Pagurus forbesii. Based on morphological observations with various species of Pagurus, and molecular studies, a new species is defined and described as P. pseudosculptimanus. An overview on species of Pagurus from the eastern Atlantic and Mediterranean Sea is provided. Key words: Pagurus, new species, Mediterranean, eastern Atlantic. 1 Introduction More than 170 species from around the world are currently assigned to the genus Pagurus Fabricius, 1775 (Lemaitre and Cruz Castaño 2004; Mantelatto et al. 2009; McLaughlin 2003, McLaughlin et al. 2010). This genus is complex because of there is high morphological variability and similarity among some species, and has been divided in groups (e.g. Lemaitre and Cruz Castaño 2004 for eastern Pacific species; Ingle, 1985, for European species) with difficulty (Ayón-Parente and Hendrickx 2012). This difficulty has lead to taxonomic problems, although molecular techniques have been recently used to elucidate some species (Mantelatto et al. 2009; Da Silva et al. 2011). Thirteen species are present in eastern Atlantic (European and the adjacent African waters) (Ingle 1993; Udekem d'Acoz 1999; Froglia, 2010, MarBEL Data System - Türkay 2012, García Raso et al., in press) but only nine of these (the first ones mentioned below) have been cited in the Mediterranean Sea, all of them are present in the study area (Alboran Sea, southern Spain). -
A New Species of the Genus Pagurus Fabricius, 1775 (Crustacea: Decapoda: Anomura: Paguridae) from the Ryukyu Islands, Southwestern Japan*
Zootaxa 3367: 155–164 (2012) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (online edition) A new species of the genus Pagurus Fabricius, 1775 (Crustacea: Decapoda: Anomura: Paguridae) from the Ryukyu Islands, southwestern Japan* MASAYUKI OSAWA Research Center for Coastal Lagoon Environments, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane, 690-8504 Japan. E-mail: [email protected] * In: Naruse, T., Chan, T.-Y., Tan, H.H., Ahyong, S.T. & Reimer, J.D. (2012) Scientific Results of the Marine Biodiversity Expedition — KUMEJIMA 2009. Zootaxa, 3367, 1–280. Abstract A new species of pagurid hermit crab, Pagurus tabataorum n. sp., is described from Kume Island, Ryukyu Islands, southwestern Japan. It appears closest to P. capsularis McLaughlin, 1997, known from the Tanimbar Islands in Indonesia, but is readily distinguished by the possession of numerous arcuate or sinuous, transverse scutes on the dorsal surface of the chelae. Distributional patterns of species of the genus Pagurus Fabricius, 1775, hitherto recorded from the Ryukyu Islands are briefly reviewed. Key words: Crustacea, Decapoda, Anomura, Pagurus, new species, Ryukyus Introduction The KUMEJIMA 2009 Expedition was an extensive survey on the coastal marine fauna around Kume Island, Ryukyu Islands, southwestern Japan. Dredgings and trawlings during the expedition were resulted in the findings of many species of decapod crustaceans including an unusual hermit crab species of the genus Pagurus Fabricius, 1775. The species is herein described as new to science and illustrated in detail. The holotype of the new species is deposited in the Ryukyu University Museum, Fujukan (RUMF), Okinawa. -
Hermit Crabs. During the Hottest Times of the Day They'll Hide to Avoid the Heat, So Look for Them Under Flotsam and Jetsam and Sea Shore Plants
HERMIT CRABS Hermit crabs are unusual because they use sea snail shells for their homes. Recycling shells has helped hermit crabs wander where their crab cousins fear to tread. HOME SWEET HOME To hermit crabs, snail shells are everything! If startled, they use their snail shells for protection. They tuck neatly into a ball, using strong front legs and nippers to block the entrance from intruders. The shell also keeps them wet when they venture onto land, shields them from the sun's rays and is a protected place for them to lay their eggs. Some hermit crabs allow other marine life to piggy-back on their snail shells. The sea anemone is a welcome hitch-hiker as it stings predators. The anemone benefits from the ride by feeding on tiny particles of food as it is moved around. This arrangement, which benefits both creatures, is known as A marine hermit crab with symbiosis. a sea anemone attached to its shell. Shaped to fit! Hermit crabs are arthropods and therefore have an exoskeleton (a hard shell-like covering). The original crab body shape has changed to fit the shape of snail shells, making them look more like a crayfish. The soft abdomen is shaped to curl inside the shell opening. Their four rear legs hang tightly onto the inside of the shell. Their four front legs are used for walking and must be powerful to be able to pull a house along! They have two front nippers used to cut up their food and defend themselves. WARNING: never try to pull a hermit crab from a shell; they hang on so well that they may be torn apart! Close up of Hermit crab habitat baby hermit crab Cheliped (zooplankton). -
Pagurus Ikedai (Crustacea: Anomura: Paguridae), a New Hermit Crab Species of the Bernhardus Group from Japanese Waters
Zootaxa 819:1-12(2005) ISSN 1175-5326 (print edition) E3 www.mapress.com/2ootaxa/ 71^1^'T'AYA (''STO^ Copyright © 2005 Magnolia Press ISSN 1175-5334 (online edition) Pagurus ikedai (Crustacea: Anomura: Paguridae), a new hermit crab species of the bernhardus group from Japanese waters RAFAEL LEMAITRE' & HAJIME WATABE^ 'Smithsonian Institution. Department of Zoology. National Museum of Natural History. MRC163. P.O. BOX 37012. Washington. DC2001S-70I2. U. S. A. [email protected]) ^ Marine Ecosystems Dynamics Benthos, Ocean Research Institute. University of Tokyo. Minamidai 1-15-1. Nakano. Tokyo, 164-8639. Japan. ([email protected]) Abstract A new species of Paguridae, Pagurus ikedai, from the Tokyo Submarine Canyon and vicinity, Japan, is described and fully illustrated, including infoimation on live coloration. This new species is distinguished primarily by size and shape of the chelipeds, in particular the massiveness of the left, and the presence in some males of a papilla or very short sexual tube on the right coxa of the fifth pereopod and a papilla on the coxa of the left. It is assigned to the bernhardus group which now includes eight species. Key words: Hermit crab, Pagiuidae, Pagurus, new species, bernhardus group, Tokyo Submarine Canyon,Japan Introduction As part of long-term benthic faunal and ecological studies begun in the early 1960's (e.g., Ikeda 1998, Watabe 1999), numerous specimens of a distinct hermit crab species of the family Paguridae were collected in the Tokyo Submarine Canyon and vicinity. During the earlier years of these studies, some specimens were sent to the late Sadayoshi Miyake (1908-1998, see Baba 1998) who communicated to Hitoshi Ikeda (Hayama Shiosai Museum) that they represented an undescribed genus and species. -
How to Become a Crab: Phenotypic Constraints on a Recurring Body Plan
Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 25 December 2020 doi:10.20944/preprints202012.0664.v1 How to become a crab: Phenotypic constraints on a recurring body plan Joanna M. Wolfe1*, Javier Luque1,2,3, Heather D. Bracken-Grissom4 1 Museum of Comparative Zoology and Department of Organismic & Evolutionary Biology, Harvard University, 26 Oxford St, Cambridge, MA 02138, USA 2 Smithsonian Tropical Research Institute, Balboa–Ancon, 0843–03092, Panama, Panama 3 Department of Earth and Planetary Sciences, Yale University, New Haven, CT 06520-8109, USA 4 Institute of Environment and Department of Biological Sciences, Florida International University, Biscayne Bay Campus, 3000 NE 151 Street, North Miami, FL 33181, USA * E-mail: [email protected] Summary: A fundamental question in biology is whether phenotypes can be predicted by ecological or genomic rules. For over 140 years, convergent evolution of the crab-like body plan (with a wide and flattened shape, and a bent abdomen) at least five times in decapod crustaceans has been known as ‘carcinization’. The repeated loss of this body plan has been identified as ‘decarcinization’. We offer phylogenetic strategies to include poorly known groups, and direct evidence from fossils, that will resolve the pattern of crab evolution and the degree of phenotypic variation within crabs. Proposed ecological advantages of the crab body are summarized into a hypothesis of phenotypic integration suggesting correlated evolution of the carapace shape and abdomen. Our premise provides fertile ground for future studies of the genomic and developmental basis, and the predictability, of the crab-like body form. Keywords: Crustacea, Anomura, Brachyura, Carcinization, Phylogeny, Convergent evolution, Morphological integration 1 © 2020 by the author(s). -
Hermit Crab Care
HERMIT CRAB BASIC CRAB CARE Just the Basics To live comfortably in captivity, hermit crabs require the following: no lower than 75°F. Consistent low temperatures can kill a hermit crab. Don't allow them to bake in a window, either. If they get too hot they will die, overheating causes irreversible damage and a slow, painful death. Signs of overheating are a musty smell and discharge of brown liquid; crabitat to have a moist, "tropical" feel to it; at it negates the effects of your under- tank heater. If you are having trouble keeping your crabitat warm, try moving some substrate from over the heater. If you are having trouble getting the crabitat to cool down, turn off the heater. See the molting page if you need information on heating a molter's isolation tank; Food, water, shells and other tank decorations to keep the crabs engaged and active. Friends I'm sure you've heard this before, but you really shouldn't keep only one hermit crab alone as a pet. The name 'hermit' is misapplied to our little friends -- they are quite gregarious and like to be around their own kind. In the wild, they travel in packs of up to 100 crabs, scavenging the beach for food and shells. The reason they travel in packs is simple: Where there are more crabs, there are more shells. Researchers have found by putting one clean, empty shell on the beach, they can initiate a "cascade" of shells changes: One crab changes in to the new shell, another changes into his old shell, and another changes into the other empty shell, and so on. -
Redalyc.Utilization of Shells of the Snail Achatina Fulica Bowdich, 1822
Investigaciones Marinas ISSN: 0716-1069 [email protected] Pontificia Universidad Católica de Valparaíso Chile Sant'Anna, Bruno S.; Zangrande, Cilene M.; Reigada, Alvaro L.D. Utilization of shells of the snail Achatina fulica Bowdich, 1822 (Mollusca, Gastropoda) by the hermit crab Clibanarius vittatus (Bosc, 1802) (Decapoda, Anomura) in the São Vicente Estuary, São Paulo, Brazil Investigaciones Marinas, vol. 33, núm. 2, noviembre, 2005, pp. 217-219 Pontificia Universidad Católica de Valparaíso Valparaíso, Chile Available in: http://www.redalyc.org/articulo.oa?id=45633210 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Invest. Mar., Valparaíso, 33(2): 217-219,Utilization 2005 of the snail Achatina fulica by Clibanarius vittatus 217 Nota Científica Utilization of shells of the snail Achatina fulica Bowdich, 1822 (Mollusca, Gastropoda) by the hermit crab Clibanarius vittatus (Bosc, 1802) (Decapoda, Anomura) in the São Vicente Estuary, São Paulo, Brazil Bruno S. Sant’Anna, Cilene M. Zangrande & Alvaro L.D. Reigada Research Group in Crustacean Biology (Crusta), Campus do Litoral Paulista Universidade Estadual Paulista, Praça Infante D. Henrique s/n 11330-900 São Vicente (SP), Brazil ABSTRACT. Hermit crabs depend on mollusc shells for housing. In this study, an unusual resource is reported for a hermit crab that usually inhabits marine gastropod shells. During a field study conducted from May 2001 to April 2003 in an estuarine area in São Vicente, state of São Paulo, Brazil, 21 individuals of Clibanarius vittatus (Bosc, 1802) were found inhabiting the shells of the terrestrial gastropod Achatina fulica Bowdich, 1822. -
Crustacean Critters Summary Concepts Students Will Have the Opportunity to Work with Live Hermit Crabs in There Are Many Different Their Classroom
SANDY SHORES Crustacean Critters Summary Concepts Students will have the opportunity to work with live hermit crabs in There are many different their classroom. They will learn what it takes to keep a hermit crab, types of crustaceans. as well as, all other animals happy and healthy in their habitat. Crabs, lobsters, shrimp, prawns, and barnacle are some types of crustaceans. Objectives Crustaceans share many • Students will discover the four basic things that all animals of the same physical need to survive. characteristics, but some • Students will be able to identify the abiotic and biotic have unique features of components of a hermit crabs sandy shore habitat. their own. All animals • Students will be able to describe how hermit crabs are including crustaceans adapted to live on the sandy shore habitat. have special needs that ensure their survival. Materials Activity 1: Habitat Huddle Standards Addressed 1 large piece of chart paper or board in front of classroom 2.1.1 Activity 2: Crustacean Drawing 2.3.1 5-10 pictures or specimens (can be bought at the market or just use 2.5.1 toy models) of different types of crustaceans such as crabs, lobsters, hermit crabs, and shrimp. Duration 2 pieces of chart paper 1 hour drawing paper for each student Source Material Making Connections MARE Sandy Shores Students may recall seeing different types of crustacean during visits to the sandy shore. Learning about the different kinds of crustaceans Vocabulary and how their similar or different will help students to identify the Crustaceans various adaptations and characteristics that make the sandy shore a Antennae suitable habitat for some and not for others. -
Ecological Role of Marine Intertidal Hermit Crabs in California
Swarms of swift scavengers: ecological role of marine intertidal hermit crabs in California Mark E. Laidre1* and Alison L. Greggor1 1Department of Integrative Biology, University of California, Berkeley Running title: Swarms of swift scavengers Word count Abstract: 241 Main text (including references): 5,475 With 2 Tables and 4 Figures Electronic Supplementary Material (4 Supplementary Figures) *Corresponding author address: Department of Biological Sciences Dartmouth College The Class of 1978 Life Sciences Center 78 College Street Hanover, NH 03755 Phone: +1 (609) 751-8041, Fax: +1 (603) 646-1347 Email: [email protected] 1 Abstract 2 While marine hermit crabs are well known for being omnivorous filter feeders, less is 3 known about the role they may play as active carrion scavengers in intertidal ecosystems. 4 Prior studies have revealed that intertidal hermit crabs can be attracted to chemical cues 5 from predated gastropods. Yet their attraction is usually assumed to be driven primarily 6 by the availability of new shells rather than by food. We conducted field experiments to 7 assess hermit crabs’ potential role as generalist carrion scavengers on the California 8 coast, examining their speed of attraction and the size of the aggregations they formed in 9 response to chemical cues from freshly smashed gastropods and mussels, both of which 10 indicated available carrion. Compared to all other marine species, hermit crabs (including 11 Pagurus samuelis, Pagurus hirsutiusculus, and Pagurus granosimanus) were the fastest 12 to arrive at the provisioning sites, and they also dominated the provisioning sites, forming 13 aggregations of up to 20 individuals, which outcompeted all other scavengers for carrion. -
<I>Petrolisthes Armatus</I>
Clemson University TigerPrints Publications Biological Sciences 10-2017 Reproductive performance of the marine green porcelain crab Petrolisthes armatus Gibbes, 1850 in its introduced range favors further range expansion Ann Wassick College of Charleston J. Antonio Baeza Clemson University, [email protected] Amy Fowler George Mason University Dara Wilber College of Charleston Follow this and additional works at: https://tigerprints.clemson.edu/bio_pubs Part of the Biology Commons Recommended Citation Please use the publisher's recommended citation. http://www.aquaticinvasions.net/index.html This Article is brought to you for free and open access by the Biological Sciences at TigerPrints. It has been accepted for inclusion in Publications by an authorized administrator of TigerPrints. For more information, please contact [email protected]. Aquatic Invasions (2017) Volume 12, Issue 4: 469–485 DOI: https://doi.org/10.3391/ai.2017.12.4.05 Open Access © 2017 The Author(s). Journal compilation © 2017 REABIC Research Article Reproductive performance of the marine green porcelain crab Petrolisthes armatus Gibbes, 1850 in its introduced range favors further range expansion Ann Wassick1,*, J. Antonio Baeza2,3,4, Amy Fowler5,6 and Dara Wilber1 1Grice Marine Laboratory, College of Charleston, 205 Ft. Johnson Road, Charleston, South Carolina, 29412 USA 2Department of Biological Sciences, 132 Long Hall, Clemson University, Clemson, South Carolina, 29634 USA 3Smithsonian Marine Station at Fort Pierce, 701 Seaway Drive, Fort Pierce, Florida 34949 USA 4Departamento de Biología Marina, Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile 5Department of Environmental Science and Policy, George Mason University, 400 University Drive, Fairfax, VA 22030 USA 6Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037 USA *Corresponding author E-mail: [email protected] Received: Received: 21 February 2017 / Accepted: 1 August 2017 / Published online: 6 October 2017 Handling editor: April M.H. -
Hermit Crab Is a Small Hermit Crabs in the Families Paguridae and Diogenidae Are All Crustacean Found in Ocean Aquatic Marine Crabs
4 These crabs inhabit the local shoreline Pagurus bernhardus year Pagurus prideaux round. Class: Malacotraca Order: Decapoda Family: Paguridae Genus: Pagurus Pagurus bernhardus Distribution The hermit crab is a small Hermit crabs in the families Paguridae and Diogenidae are all crustacean found in ocean aquatic marine crabs. The family Paguridae on its own contains waters worldwide. Many several hundred different species. This species P. bernhardus is species are known from known to occur from Spitsbergen, Iceland and the Murman Sea only one or a few localities, throughout the boreal North American and European coasts and many are known world and in the Mediterranean Sea. It is common in Nova Scotian wide. New species are coastal waters. This is one of two known species occurring occurring. locally at Burntcoat Head. The other species is P. prideaux. It is similar in appearance and has somewhat the same distribution. Habitat They live along coasts in Although hermit crabs do venture into deeper waters, they are most types of sea beds, more commonly found in coastal waters where there is more including rocky and shell food and places to hide. Smaller individuals live in shallower bottoms, in sea grass beds, waters than larger individuals. A few species are land based. and sandy or silty Female terrestrial hermit crabs must return to the sea to breed. sediments, but excluding Larvae live mainly in pools and may be found under objects muddy bottoms. such as rocks and seaweed. Food It consumes microscopic bivalves, scraps of dead animals, The hermit crab is an microbes, and detritus. They are also able to filter organic omnivorous scavenger, particles from the water and will even graze on periphyton (a feeding on a wide variety of type of algae). -
An Illustrated Key to the Malacostraca (Crustacea) of the Northern Arabian Sea. Part VI: Decapoda Anomura
An illustrated key to the Malacostraca (Crustacea) of the northern Arabian Sea. Part 6: Decapoda anomura Item Type article Authors Kazmi, Q.B.; Siddiqui, F.A. Download date 04/10/2021 12:44:02 Link to Item http://hdl.handle.net/1834/34318 Pakistan Journal of Marine Sciences, Vol. 15(1), 11-79, 2006. AN ILLUSTRATED KEY TO THE MALACOSTRACA (CRUSTACEA) OF THE NORTHERN ARABIAN SEA PART VI: DECAPODA ANOMURA Quddusi B. Kazmi and Feroz A. Siddiqui Marine Reference Collection and Resource Centre, University of Karachi, Karachi-75270, Pakistan. E-mails: [email protected] (QBK); safianadeem200 [email protected] .in (FAS). ABSTRACT: The key deals with the Decapoda, Anomura of the northern Arabian Sea, belonging to 3 superfamilies, 10 families, 32 genera and 104 species. With few exceptions, each species is accompanied by illustrations of taxonomic importance; its first reporter is referenced, supplemented by a subsequent record from the area. Necessary schematic diagrams explaining terminologies are also included. KEY WORDS: Malacostraca, Decapoda, Anomura, Arabian Sea - key. INTRODUCTION The Infraorder Anomura is well represented in Northern Arabian Sea (Paldstan) (see Tirmizi and Kazmi, 1993). Some important investigations and documentations on the diversity of anomurans belonging to families Hippidae, Albuneidae, Lithodidae, Coenobitidae, Paguridae, Parapaguridae, Diogenidae, Porcellanidae, Chirostylidae and Galatheidae are as follows: Alcock, 1905; Henderson, 1893; Miyake, 1953, 1978; Tirmizi, 1964, 1966; Lewinsohn, 1969; Mustaquim, 1972; Haig, 1966, 1974; Tirmizi and Siddiqui, 1981, 1982; Tirmizi, et al., 1982, 1989; Hogarth, 1988; Tirmizi and Javed, 1993; and Siddiqui and Kazmi, 2003, however these informations are scattered and fragmentary. In 1983 McLaughlin suppressed the old superfamily Coenobitoidea and combined it with the superfamily Paguroidea and placed all hermit crab families under the superfamily Paguroidea.