Arachnida: Amblypygi: Charinidae) from Israel and New Records of C
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
The Phylogeny of Fossil Whip Spiders Russell J
Garwood et al. BMC Evolutionary Biology (2017) 17:105 DOI 10.1186/s12862-017-0931-1 RESEARCH ARTICLE Open Access The phylogeny of fossil whip spiders Russell J. Garwood1,2*, Jason A. Dunlop3, Brian J. Knecht4 and Thomas A. Hegna4 Abstract Background: Arachnids are a highly successful group of land-dwelling arthropods. They are major contributors to modern terrestrial ecosystems, and have a deep evolutionary history. Whip spiders (Arachnida, Amblypygi), are one of the smaller arachnid orders with ca. 190 living species. Here we restudy one of the oldest fossil representatives of the group, Graeophonus anglicus Pocock, 1911 from the Late Carboniferous (Duckmantian, ca. 315 Ma) British Middle Coal Measures of the West Midlands, UK. Using X-ray microtomography, our principal aim was to resolve details of the limbs and mouthparts which would allow us to test whether this fossil belongs in the extant, relict family Paracharontidae; represented today by a single, blind species Paracharon caecus Hansen, 1921. Results: Tomography reveals several novel and significant character states for G. anglicus; most notably in the chelicerae, pedipalps and walking legs. These allowed it to be scored into a phylogenetic analysis together with the recently described Paracharonopsis cambayensis Engel & Grimaldi, 2014 from the Eocene (ca. 52 Ma) Cambay amber, and Kronocharon prendinii Engel & Grimaldi, 2014 from Cretaceous (ca. 99 Ma) Burmese amber. We recovered relationships of the form ((Graeophonus (Paracharonopsis + Paracharon)) + (Charinus (Stygophrynus (Kronocharon (Charon (Musicodamon + Paraphrynus)))))). This tree largely reflects Peter Weygoldt’s 1996 classification with its basic split into Paleoamblypygi and Euamblypygi lineages; we were able to score several of his characters for the first time in fossils. -
By Heterophrynus Sp. (Arachnida, Phrynidae) in a Cave in the Chapada Das Mesas National Park, State of Maranhão, Brazil
Crossref 10 ANOS Similarity Check Powered by iThenticate SCIENTIFIC NOTE DOI: http://dx.doi.org/10.18561/2179-5746/biotaamazonia.v10n1p49-52 Predation of Tropidurus oreadicus (Reptilia, Tropiduridae) by Heterophrynus sp. (Arachnida, Phrynidae) in a cave in the Chapada das Mesas National Park, state of Maranhão, Brazil Fábio Antônio de Oliveira1, Gabriel de Avila Batista2, Karla Dayane de Lima Pereira3, Lucas Gabriel Machado Frota4, Victoria Sousa5, Layla Simone dos Santos Cruz6, Karll Cavalcante Pinto7 1. Biólogo (Pontifícia Universidade Católica de Goiás, Brasil). Doutorando em Geologia (Universidade de Brasília, Brasil). [email protected] http://lattes.cnpq.br/6651314736341253 http://orcid.org/0000-0001-8125-6339 2. Biólogo (Anhanguera Educacional, Brasil). Doutorando em Recursos Naturais do Cerrado (Universidade Estadual de Goiás, Brasil). [email protected] http://lattes.cnpq.br/1131941234593219 http://orcid.org/0000-0003-4284-2591 3. Bióloga (Anhanguera Educacional, Brasil). Mestranda em Conservação de Recursos Naturais do Cerrado (Instituto Federal Goiano, Brasil). [email protected] http://lattes.cnpq.br/4328373742442270 http://orcid.org/0000-0003-1578-8948 4. Biólogo (Pontifícia Universidade Católica de Goiás, Brasil). Analista Ambiental da Biota Projetos e Consultoria Ambiental LTDA, Brasil. [email protected] http://lattes.cnpq.br/7083829373324504 http://orcid.org/0000-0001-6907-9480 5. Bióloga (Pontifícia Universidade Católica de Goiás, Brasil). Mestranda em Ecologia e Evolução (Universidade Federal de Goiás, Brasil). [email protected] http://lattes.cnpq.br/0747140109675656 http://orcid.org/0000-0002-2818-5698 6. Bióloga (Centro Universitário de Goiás, Brasil). Especialista em Perícia, Auditoria e Gestão Ambiental (Instituto de Especialização e Pós-Graduação (IEPG)/Faculdade Oswaldo Cruz, Brasil). -
ABS-2018-Program.Pdf
CONFERENCE PROGRAM 55th Annual Conference of the Animal Behavior Society University of Wisconsin - Milwaukee August 2-6, 2018 2 ESCAPE THE CITY Discover the Natural World August 3-6, 2018 Show this ad or your conference badge to receive $5 OFF ADMISSION. MILWAUKEE PUBLIC MUSEUM 800 West Wells Street, Milwaukee, WI 53233 ABS 2018 | AUGUST 2-6 414-278-2702 | www.mpm.edu 1 TABLE OF CONTENTS TABLE TABLE OF CONTENTS GENERAL INFORMATION 2 WELCOME LETTER 3 AWARDS 4 PLENARIES & FELLOW TALKS 5 SYMPOSIA 6 WORKSHOPS 8 EVENTS & MEETINGS 9 FILM FESTIVAL 10 ABS 2019 - SAVE THE DATE 11 PROGRAM SUMMARY 12 THURSDAY, AUGUST 2 14 FRIDAY, AUGUST 3 14 SATURDAY, AUGUST 4 18 SUNDAY, AUGUST 5 21 MONDAY, AUGUST 6 24 POSTER SESSIONS 26 TALK INDEX 32 SPONSORS & EXHIBITORS 36 CAMPUS MAP OUTSIDE BACK COVER ABS 2018 | AUGUST 2-6 UNIVERSITY OF WISCONSIN - MILWAUKEE 2 GENERAL INFORMATION DATES CAMPUS HOUSING CHECK-IN The 55th Annual Animal Behavior Society Conference begins Delegates who are staying on campus will proceed to the Sandburg Thursday, August 2nd and concludes Monday, August 6th, 2018. Hall (3400 N. Maryland Avenue, Milwaukee, WI 53201) or River View Residence Hall (2340 North Commerce Street, Milwaukee, REGISTRATION INFORMATION WI 53211 ) to check in. The Front Desk will be available 24 hrs The Registration Desk is located in the Student Union “Pangaea at both Residence Halls for check-in. Please note that there is a Mall” on Level 1, and will be open during the following hours: $25.00 lost key fee. Wednesday 6:00 pm - 8:00 pm PRE-ORDERED MEAL PLAN CARDS & PARKING Thursday- Sunday 7:30 am - 7:30 pm PASSES Monday 7:30 am - 2:00 pm Please note that your pre-purchased meal plan card and pre- purchased parking passes will be available for pick-up at University INSTRUCTIONS TO TALK PRESENTERS Housing check-in. -
Whip Spiders) Lehmann and Melzer
Also looking like Limulus? – retinula axons and visual neuropils of Amblypygi (whip spiders) Lehmann and Melzer Lehmann and Melzer Frontiers in Zoology (2018) 15:52 https://doi.org/10.1186/s12983-018-0293-6 Lehmann and Melzer Frontiers in Zoology (2018) 15:52 https://doi.org/10.1186/s12983-018-0293-6 RESEARCH Open Access Also looking like Limulus? – retinula axons and visual neuropils of Amblypygi (whip spiders) Tobias Lehmann1,2* and Roland R. Melzer1,2,3 Abstract Background: Only a few studies have examined the visual systems of Amblypygi (whip spiders) until now. To get new insights suitable for phylogenetic analysis we studied the axonal trajectories and neuropil architecture of the visual systems of several whip spider species (Heterophrynus elaphus, Damon medius, Phrynus pseudoparvulus, and P. marginemaculatus) with different neuroanatomical techniques. The R-cell axon terminals were identified with Cobalt fills. To describe the morphology of the visual neuropils and of the protocerebrum generally we used Wigglesworth stains and μCT. Results: The visual system of whip spiders comprises one pair of median and three pairs of lateral eyes. The R-cells of both eye types terminate each in a first and a second visual neuropil. Furthermore, a few R-cell fibres from the median eyes leave the second median eye visual neuropil and terminate in the second lateral eye neuropil. This means R-cell terminals from the lateral eyes and the median eyes overlap. Additionally, the arcuate body and the mushroom bodies are described. Conclusions: A detailed comparison of our findings with previously studied chelicerate visual systems (i.e., Xiphosura, Scorpiones, Pseudoscorpiones, Opiliones, and Araneae) seem to support the idea of close evolutionary relationships between Xiphosura, Scorpiones, and Amblypygi. -
Heterophrynus Armiger
Check List 10(2): 457–460, 2014 © 2014 Check List and Authors Chec List ISSN 1809-127X (available at www.checklist.org.br) Journal of species lists and distribution N Heterophrynus armiger ISTRIBUTIO Pocock, 1902 (Amblypygi: D Phrynidae): First record from Colombia, with notes on its 1* 2 3 RAPHIC G historic distribution records and natural history 4 EO Carlos Víquez , Daniel Chirivi , Jairo A. Moreno-González and James A. Christensen G N O 1 Instituto Nacional de Biodiversidad (INBio), Santo Domingo, Heredia, P. O. Box 22-3100, Costa Rica. 2 Pontificia Universidad Javeriana, Laboratorio de Entomología, Bogotá, Colombia. OTES 3 Universidad del Valle, Departamento de Biología, Sección de Entomología, Ciudad Universitaria Meléndez Calle 13 No 100-00, Santiago de Cali, N Valle del Cauca, Colombia. cví[email protected] 4 Minden Pictures/Foto Natura, 558 Main Street Watsonville, CA, 95076, USA. * Corresponding Author. E-mail: Abstract: Heterophrynus armiger The phrynid whip spider is herein cited for the first time from a precise locality in Colombia. Additional data on its natural history are provided. This species has been found in disturbed and preserved forest areas of Isla Gorgona, an island located at the northwest coast of Colombia. In Colombia, 10 species of Amblypygids are well known: Phrynus Lamarck, Alexander von Humboldt (IAvH) (http://biocol.org/ 1801five species (Phrynus are members araya Colmenares of the subfamily & Villarreal,Phryninae Wood,2008, urn:lsid:biocol.org:col:1022), third author reviewed the Phrynus1863, including gervaisii four from the genusPhrynus panche Armas & Collection of the Entomological Museum of Universidad Phrynus pulchripes del Valle, Cali, Valle del Cauca department, Colombia. -
Arachnida: Amblypygi: Charinidae) from Israel and New Records of C
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: European Journal of Taxonomy Jahr/Year: 2016 Band/Volume: 0234 Autor(en)/Author(s): Miranda Gustavo S., Aharon Shlomi, Gavish-Regev Efrat, Giupponi Alassandro P. L. Artikel/Article: A new species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) from Israel and new records of C. ioanniticus (Kritscher, 1959) 1-17 © European Journal of Taxonomy; download unter http://www.europeanjournaloftaxonomy.eu; www.zobodat.at European Journal of Taxonomy 234: 1–17 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2016.234 www.europeanjournaloftaxonomy.eu 2016 · Miranda G.S. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Research article urn:lsid:zoobank.org:pub:7A78A076-8848-4FFF-A3C2-B1FA3A94DC2F A new species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) from Israel and new records of C. ioanniticus (Kritscher, 1959) Gustavo S. MIRANDA 1*, Shlomi AHARON 2, Efrat GAVISH-REGEV 3, Alessandro P.L. GIUPPONI 4 & Gil WIZEN 5,6 1 Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Copenhagen, Denmark. 2 Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, 849900, Israel. 3 The National Natural History Collections, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 9190401, Israel. 4 Laboratório de Referência Nacional em Vetores das Riquetsioses, LIRN-FIOCRUZ, Rio de Janeiro, RJ, Brazil. 5 Faculty of Forestry, University of Toronto, Toronto, Ontario M5S 3B3, Canada. 6 Department of Zoology, Tel Aviv University, Tel Aviv, 6997801, Israel. -
A New Species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) from Israel and New Records of C
European Journal of Taxonomy 234: 1–17 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2016.234 www.europeanjournaloftaxonomy.eu 2016 · Miranda G.S. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Research article urn:lsid:zoobank.org:pub:7A78A076-8848-4FFF-A3C2-B1FA3A94DC2F A new species of Charinus Simon, 1892 (Arachnida: Amblypygi: Charinidae) from Israel and new records of C. ioanniticus (Kritscher, 1959) Gustavo S. MIRANDA 1*, Shlomi AHARON 2, Efrat GAVISH-REGEV 3, Alessandro P.L. GIUPPONI 4 & Gil WIZEN 5,6 1 Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark (Zoological Museum), University of Copenhagen, Copenhagen, Denmark. 2 Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, 849900, Israel. 3 The National Natural History Collections, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 9190401, Israel. 4 Laboratório de Referência Nacional em Vetores das Riquetsioses, LIRN-FIOCRUZ, Rio de Janeiro, RJ, Brazil. 5 Faculty of Forestry, University of Toronto, Toronto, Ontario M5S 3B3, Canada. 6 Department of Zoology, Tel Aviv University, Tel Aviv, 6997801, Israel. * Corresponding author: [email protected] 2 Email: [email protected] 3 Email: [email protected] 4 Email: [email protected] 5 Email: [email protected] 1 urn:lsid:zoobank.org:author:AF7CC5D6-31CE-40D2-AC1E-9D24245D19C4 2 urn:lsid:zoobank.org:author:FB5EEA73-DD16-440C-B611-07F1C0C1300B 3 urn:lsid:zoobank.org:author:FC073F19-2202-4C89-8B43-CEA4CC5E2D50 4 urn:lsid:zoobank.org:author:434112AC-B212-43E8-A5D9-2F5D5619AFC4 5 urn:lsid:zoobank.org:author:08A8140A-AF25-4275-9A01-32BADF0DFB04 Abstract. -
(Arachnida, Amblypygi, Phrynidae) in a Cave in the Eastern Brazilian Amazon
ACTA AMAZONICA http://dx.doi.org/10.1590/1809-4392201700993 Bat necrophagy by a whip-spider (Arachnida, Amblypygi, Phrynidae) in a cave in the eastern Brazilian Amazon Xavier PROUS1*, Thadeu PIETROBON1, Mariane S. RIBEIRO1, Robson de A. ZAMPAULO1 1 Vale – Environmental Licensing and Speleology. Av. Dr. Marco Paulo Simon Jardim, 3580, Nova Lima - MG, Brasil. 34006-270 * Corresponding author: [email protected] ABSTRACT Amblypygids are among the main predators in the ferriferous caves in Carajás National Forest, state of Pará (Amazon region of Brazil). One of the most common amblypygid species in this region is Heterophrynus longicornis (Butler 1873), and its most frequent prey are crickets of the family Phalangopsidae, which are abundant in the caves of Pará. Because they are primarily predators, necrophagy by amblypygids is not frequent in nature, and there are only two literature records of necrophagy of bats by Amblypygi. On December 11th, 2013, we observed an individual H. longicornis eating a bat carcass in a Pará ferriferous cave. The amblypygid exhibited considerable interest in the bat’s carcass, and it did not interrupt its meal even when lamps or a camera’s flash were pointed in its direction. The availability of nutrients in the carcass must promote this opportunistic behavior in caves, especially considering the habitual scarcity of trophic resources in underground environments when compared to epigean environments. KEYWORDS: Heterophrynus longicornis, Chiroptera, cave, feeding behavior Necrofagia de morcego por um amblipígio (Arachnida, Amblypygi, Phrynidae) em uma caverna no leste da Amazônia brasileira RESUMO Amblipígios são considerados um dos principais predadores em cavernas de litologia ferrífera localizadas na Floresta Nacional de Carajás no estado do Pará (região da Amazônia brasileira). -
Amblypygids: Model Organisms for the Study of Arthropod Navigation Mechanisms in Complex Environments? Daniel D
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Eileen Hebets Publications Papers in the Biological Sciences 2016 Amblypygids: Model Organisms for the Study of Arthropod Navigation Mechanisms in Complex Environments? Daniel D. Wiegmann Bowling Green State University - Main Campus, [email protected] Eileen A. Hebets University of Nebraska-Lincoln, [email protected] Wulfila Gronenberg University of Arizona, [email protected] Jacob M. Graving Bowling Green State University, [email protected] Verner P. Bingman Bowling Green State University, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/bioscihebets Part of the Behavior and Ethology Commons, Entomology Commons, and the Other Animal Sciences Commons Wiegmann, Daniel D.; Hebets, Eileen A.; Gronenberg, Wulfila; Graving, Jacob M.; and Bingman, Verner P., "Amblypygids: Model Organisms for the Study of Arthropod Navigation Mechanisms in Complex Environments?" (2016). Eileen Hebets Publications. 56. http://digitalcommons.unl.edu/bioscihebets/56 This Article is brought to you for free and open access by the Papers in the Biological Sciences at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Eileen Hebets Publications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. PERSPECTIVE published: 08 March 2016 doi: 10.3389/fnbeh.2016.00047 Amblypygids: Model Organisms for the Study of Arthropod Navigation Mechanisms in Complex Environments? Daniel D. Wiegmann -
Abstract Book
ABSTRACT BOOK Canterbury, New Zealand 10–15 February 2019 21st International Congress of Arachnology ORGANISING COMMITTEE MAIN ORGANISERS Cor Vink Peter Michalik Curator of Natural History Curator of the Zoological Museum Canterbury Museum University of Greifswald Rolleston Avenue, Christchurch Loitzer Str 26, Greifswald New Zealand Germany LOCAL ORGANISING COMMITTEE Ximena Nelson (University of Canterbury) Adrian Paterson (Lincoln University) Simon Pollard (University of Canterbury) Phil Sirvid (Museum of New Zealand, Te Papa Tongarewa) Victoria Smith (Canterbury Museum) SCIENTIFIC COMMITTEE Anita Aisenberg (IICBE, Uruguay) Miquel Arnedo (University of Barcelona, Spain) Mark Harvey (Western Australian Museum, Australia) Mariella Herberstein (Macquarie University, Australia) Greg Holwell (University of Auckland, New Zealand) Marco Isaia (University of Torino, Italy) Lizzy Lowe (Macquarie University, Australia) Anne Wignall (Massey University, New Zealand) Jonas Wolff (Macquarie University, Australia) 21st International Congress of Arachnology 1 INVITED SPEAKERS Plenary talk, day 1 Sensory systems, learning, and communication – insights from amblypygids to humans Eileen Hebets University of Nebraska-Lincoln, Nebraska, USA E-mail: [email protected] Arachnids encompass tremendous diversity with respect to their morphologies, their sensory systems, their lifestyles, their habitats, their mating rituals, and their interactions with both conspecifics and heterospecifics. As such, this group of often-enigmatic arthropods offers unlimited and sometimes unparalleled opportunities to address fundamental questions in ecology, evolution, physiology, neurobiology, and behaviour (among others). Amblypygids (Order Amblypygi), for example, possess distinctly elongated walking legs covered with sensory hairs capable of detecting both airborne and substrate-borne chemical stimuli, as well as mechanoreceptive information. Simultaneously, they display an extraordinary central nervous system with distinctly large and convoluted higher order processing centres called mushroom bodies. -
First Record of Heterophrynus Elaphus (Pocock, 1903) (Amblypygi: Phrynidae) for Bolivia
Revista Ibérica de Aracnología, nº 25 (31/12/2014): 102. NOTA CIENTÍFICA Grupo Ibérico de Aracnología (S.E.A.). ISSN: 1576 - 9518. http://www.sea-entomologia.org First record of Heterophrynus elaphus (Pocock, 1903) (Amblypygi: Phrynidae) for Bolivia Florian Réveillion1, Pierre Olivier Maquart2 & Hubert Höfer3 1 CEREP, Musées de Sens, 5 rue Rigault, 89100 Sens, France – [email protected] 2 52 chemin du fief du Magny, 85210 Sainte-Hermine, France – [email protected] 3 Staatliches Museum für Naturkunde Karlsruhe, Erbprinzenstr. 13, D-76133 Karlsruhe, Germany Abstract: New geographical data for Heterophrynus elaphus (Amblypygi, Phrynidae) represent the first Bolivian record of a whip spider. Key words: Amblypygi, Phrynidae, Heterophryninae, whip spider, Heterophrynus elaphus, first record, Bolivia. Primera cita de Bolivia de Heterophrynus elaphus (Pocock, 1903) (Amblypygi: Phrynidae) Resumen: Una nueva localidad para Heterophrynus elaphus (Amblypygi, Phrynidae) representa el primer registro boliviano de amblipígidos. Palabras clave: Amblypygi, Phrynidae, Heterophryninae, amblipígido, Heterophrynus elaphus, primera cita, Bolivia. Due to their prevalent occurrence in tropical and subtropical regions, from secondary forest, humid, on stones covered with moss and their cryptic and nocturnal behavior and low abundance, whip spider lichens. Voucher SMNK-AMBLY 0046 deposited at Staatliches (Amblypygi) are not among the frequently collected and studied Museum für Naturkunde Karlsruhe, Germany. arthropods. Therefore the distribution of many species is not known (Harvey, 2002, 2007). However, in many museum or university Bibliography collections around the world, (often unidentified) specimens of these BECK, L. 1972. Zur Tagesperiodik der Laufaktivität von Admetus arachnids can be found. Visiting and revising the collections can pumilio C. L. Koch (Arachnida, Amblypygi) aus dem neotro- even reveal new species (Pocock, 1894) and certainly improve the pischen Regenwald II. -
Arachnida, Opiliones)
Murphree, C. S . 1988 . Morphology of the dorsal integument of ten opilionid species (Arachnida , Opiliones) . J. Arachnol ., 16 :237-252 . MORPHOLOGY OF THE DORSAL INTEGUMENT O F TEN OPILIONID SPECIES (ARACHNIDA, OPILIONES) C. Steven Murphre e Department of Biology Middle Tennessee State University Murfreesboro, Tennessee 37132 US A ABSTRAC T Specimens of Siro exilis Hoffman, Vonones sayi (Simon), Erebomaster sp ., Leiobunum vittatu m (Say), Leiobunum holtae McGhee, Hadrohunus maculosus (Wood), Eumesosorna nigrum (Say) , Odiellus pictus (Wood), Caddo agilis Banks, and Hesperonemastoma kepharti (Crosby and Bishop ) were investigated using scanning electron microscopy . Features of the dorsal integument of eac h specimen are described using available terminology . Variations in the generalized tuberculate-granulate morphology were observed in eight of the ten species studied . V. sayi, C. agilis, and O . pictus exhibit a morphological gradient in features of their dorsal integuments . The presence of micropores is reporte d from the apices of tubercles of L. vittatum, L . holtae, H. maculosus, and O . pictus and from th e cuticular backgrounds of S. exilis, V. sayi, and E. nigrum . The morphological descriptions and comparisons presented provide a terminology for describing opilionid cuticular features . INTRODUCTION Species of the order Opiliones are often characterized by prominen t protuberances, spines, and ornamented cuticles, especially in the suborder Laniatores (Shear and Gruber 1983) . Studies with scanning electron microscop y (SEM) reveal still other, smaller, cuticular features . In the past, morphological studies of arthropod integuments have been primarily limited to insects . Although various morphological descriptions of the arachnid cuticle exist in the literature, a consistent descriptive terminology is currently unavailable .