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Decapoda, Brachyura) and Revision of the Larval Morphology of Superfamily Trapezioidea

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Decapoda, Brachyura) and Revision of the Larval Morphology of Superfamily Trapezioidea This article is part of the special series Nauplius offered by the Brazilian Crustacean Society THE JOURNAL OF THE in honor to Nilton José Hebling in recognition BRAZILIAN CRUSTACEAN SOCIETY of his dedication and contributions to the development of carcinology in Brazil. ORIGINAL ARTICLE e-ISSN 2358-2936 www.scielo.br/nau www.crustacea.org.br First zoeal stage of the crab Domecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) (Decapoda, Brachyura) and revision of the larval morphology of superfamily Trapezioidea Douglas Fernandes Rodrigues Alves1,4, João Alberto Farinelli Pantaleão2,4, Samara de P. Barros-Alves1,4, Rogério Caetano da Costa2,4 and Valter José Cobo3,4 1 Laboratório de Carcinologia, Universidade Federal de Sergipe, UFS. 49100-000 São Cristóvão, Sergipe, Brazil. DFRA E-mail: [email protected] SPBA E-mail: [email protected] 2 Laboratório de Biologia de Camarões Marinhos e de Água Doce – LABCAM, Universidade Estadual Paulista, UNESP. 17033-360 Bauru, São Paulo, Brazil. JAFP E-mail: [email protected] RCC E-mail: [email protected] 3 Laboratório de Biologia Marinha – LABBMAR, Universidade de Taubaté, UNITAU. 12030-180 Taubaté, São Paulo, Brazil. VJC E-mail: [email protected] 4 Group of Studies on Crustacean Biology, Ecology and Culture – NEBECC, Departamento de Zoologia, Universidade Estadual Paulista, UNESP. 18618-970 Botucatu, São Paulo, Brazil. ZOOBANK htt p://zoobank.org/urn:lsid:zoobank.org:pub:16FC6416-35D0-4147- CORRESPONDING AUTHOR 9219-3246E57F55BF Samara de P. Barros-Alves [email protected] SUBMITTED 24 February 2016 ACCEPTED 13 July 2016 ABSTRACT PUBLISHED 21 November 2016 Th e morphology of the fi rst zoeal stage ofDomecia acanthophora (Desbonne, Guest Editors in Desbonne & Schramm, 1867) was described from laboratory-hatched Maria Lúcia Negreiros-Fransozo and Adilson Fransozo material obtained from ovigerous females collected at Vitória Island on the southeastern Brazilian coast. We compared the larval morphology DOI 10.1590/2358-2936e2016021 Nauplius, 24 e2016021 1 Diagramação e XML SciELO Publishing Schema: www.editoraletra1.com Alves et al. Description of the first zoea of D. acanthophora (zoea I) of fourteen species of the superfamily Trapezioidea, which Domecia glabra Alcock, 1899 is the only congeneric representative of the species described in this study. The morphological characteristics of the first zoea that distinguish D. acanthophora from D. glabra are: three aesthetascs on the exopod antennule; three pairs of lateral spines on carapace; bilobed basial endite of maxilla, with four plumodenticulate setae on each lobe; and telson furcae distally spinulated. It also provides information that may enhance some phylogenetic hypotheses within Trapezioidea crabs. KEY WORDS Domeciidae, larval description, southeastern Brazil, Tetraliidae, Trapeziidae. INTRODUCTION Ng et al., 2008) in a comparative table, in order to The most recent Brachyura classification (Nget al., facilitate the identification of these larvae. 2008; De Grave et al., 2009; Ahyong et al., 2011) recognizes the superfamily Trapezioidea Miers, MATERIAL AND METHODS 1886, which consists of three families: Domeciidae Two ovigerous females of D. acanthophora were Ortmann, 1893, Tetraliidae Castro, Ng & Ahyong, collected in September 2006 by scuba divers at Vitória 2004 and Trapeziidae Miers, 1886. Crabs of the family Island (23°44’04”S 45°01’35”W) in the southeastern of Domeciidae are grouped into four genera: Domecia the São Paulo State, Brazil. The crabs were kept isolated Eydoux & Souleyet, 1842, Jonesius Sankarankutty, in aquaria filled with seawater from the collecting site, 1962, Maldivia Borradaile, 1902 and Palmyria Galil at constant temperature (24 ± 1°C), salinity (35 ± 1) & Takeda, 1986. The speciesDomecia acanthophora and moderate aeration, until the larvae hatched. Newly (Desbonne, in Desbonne & Schramm, 1867) has a hatched zoeae were preserved in a 1:1 mixture of 70% wide geographical distribution in the Western Atlantic, ethyl alcohol and glycerin. For detailed examination, extending from North Carolina, Bermuda, Florida, the larvae and appendages were dissected under a Zeiss the Gulf of Mexico, the Antilles, northeastern South Stemi 200C trinocular stereomicroscope and prepared America and Brazil (St. Peter and St. Paul Archipelago, on semi-permanent slides with glycerin. Rocas Atoll, Fernando de Noronha, and from states Drawings and measurements were done using of Ceará and Pernambuco to São Paulo) (Alves et al., a Leica DM750 microscope equipped with camera 2006; Coelho-Filho, 2006; Melo, 1998). lucida. The illustrations and measurements were based In recent decades, several studies about the on at least 10 specimens. The carapace length (CL) morphology of larval stages have been used to elucidate the taxonomic status of these crabs, of which there was considered from the eyes (base of the rostrum) is still no consensus with respect to the superfamily to the posterolateral cephalothorax margin, and the Trapezioidea (e.g., Clark and Guerao, 2008; Clark rostrodorsal length (RDL) was considered from the and Ng, 2010). About 60 species of the superfamily tip of the rostral spine to the tip of the dorsal spine. Trapezioidea are known (see Ng et al., 2008), but the The long terminal plumose natatory setae on distal morphology of the first zoeal stage is described only exopod segments of the first and second maxillipeds for 14 species (see Tab. 1). were drawn truncated. Considering the morphology of the first larval Larval description and terminology of setae are stage is unknown for most species of the superfamily based on Clark et al. (1998) and Garm (2004). The Trapezioidea, new descriptions could contribute with parental females of D. acanthophora were deposited in knowledge of the relationship within this taxon. Thus, the crustacean collection of the Museum of Zoology we provided here a detailed description of the first zoea of the University of São Paulo (MZUSP-16705). of the crab D. acanthophora, hatched in the laboratory. The larvae ofD. acanthophora were deposited in the Additionally, we reviewed and compared the larval scientific collection of the Marine Biology Laboratory morphology (zoea I) of Trapezioidea species (sensu of the University of Taubaté (UNITAU-201237). Nauplius, 24: e2016021 2 Diagramação e XML SciELO Publishing Schema: www.editoraletra1.com Alves et al. Description of the first zoea of D. acanthophora Nauplius Table 1. Comparison of some larval characters of the first zoeal stage ofDomecia acanthophora (Desbonne, in Desbonne & Schramm, 1867) and other species of the superfamily Trapezioidea. Trapeziidae Miers, 1886 Domeciidae Ortmann, 1893 Tetrallidae Castro, Ng & Ahyong, 2004 Calocarcininae Quadrellinae Trapeziinae Miers, 1886 , Števčić, 2005 Števčić, 2005 24 Species/original Domecia : larval description acanthophora Tetralia Calocarcinus Quadrella Trapezia richtersi Trapezia Trapezia tigrina e2016021 Domecia glabra Tetralia cavimana Tetralia glaberrima Quadrella serenei Trapezia bidentata Trapezia cymodoce Trapezia digitalis Trapezia septata (Desbonne, in rubridactyla africanus maculosa Galil & rufopunctata Eydoux & Alcock, 18992 Heller, 18613 (Herbst, 1790)4 Galil, 19865 (Forskål, 1775)4,7 (Herbst, 1801)3,4,7 Latreille, 1828)4,7 Dana, 18524 Desbonne & Garth, 19715 Calman, 19096 Alcock, 18985 Lewinsohn, 19835 (Herbst, 1799)4 Souleyet, 18427 Schramm, 1867)1 Carapace Rostral 1sp (smooth) 1sp (smooth) 1sp (spinulate) 1 sp (spinulate) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (smooth) Dorsal 1sp (smooth) 1sp (smooth) 1sp (spinulate) 1 sp (spinulate) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (smooth) 1sp (smooth) 1sp (spinulate) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 1sp (smooth) 1sp (spinulate) 6sp (3 pairs) (with 4sp (2 pairs) 4sp (2 pairs) (with 4sp (2 pairs) 4sp (2 pairs) (with 6sp (3 pairs) 4sp (2 pairs) 4sp (2 pairs) 2sp (1 pair) 2sp (1 pair) 2sp (1 pair) 2sp (1 pair) 2sp (1 pair) 2sp (1 pair) 2sp (1 pair) Lateral 2 spinulates) (with 1 spinulate) 1 spinulate) (spinulates) 1 spinulate) (smooth) (with 1 spinulate) (smooth) (spinulate) (spinulate) (spinulate) (spinulate) (spinulate) (spinulate) (spinulate) Antennule Exopod 3a+1s 4a+1-2s 4a+1s, 1sp 2a+2s* 4a+1s 5a+1s* 4a+1s 4a+1s 3a+1s 4a+1s, 1sp 2a+3s 4a+1s 2a+3s 2a+2s 2a+3s? Antenna Exopod 3s 3s 3s 3s 3s 3s 3s+1spp 3s 3s 3s 3s 3s 3s 3s 3s spinulate spinulate spinulate spinulate spinulate spinulate bilateral multispinulate multispinulate spinulate Protopod bilaterally spinulate distally spinulate distally spinulate distally spinulate distally spinulate distally spinulate distally bilaterally bilaterally bilaterally bilaterally and distaly distally distally bilaterally (variable size) Maxillule Coxal endite (1s+5pd) (2+5)p* (2+5)? (2+5)p (2+5)p* (1+6)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p* (2+5)p Basial endite (2c+3pd), m (3c+2p)* (4c*+1?) (5p+2c) (4c+1s)* (3pd+2c)* (4c+1p)* (4c+1p)* (3p+2c)* (3c+2p)* (3p+2c)* (4c+1p)* (3p+2c)* (3p+2c)* (3p+2c) Endopod 0, (3pd+1s) 0, 4p* 1s*, 4? 1p, (1+4)p 1s, (1+4)p* 1pd*, (2+4)pd* 1p, (2+4)p* 1p, (2+4)p* 1s*, (1+4)s* 1s*, (3p+2s) 1s*, (1+4)p* 1p, (1+4)p* 1s, (1s+4p)* 1s*, (2p+3s)* 1, (1+4)p Maxilla Coxal endite (4+3)pd, 1sp (4+3)p*, 1sp (4+3)?, 1sp (4+3)p* (4+3)p*, 1sp (6+4)p* (5+3)p*, 1sp (5+3)p*, 1sp (5+3)p* (5-6+3)p*, 1sp (5+3)p* (5+3)p*, 1sp (5+3)p* (5+3)p* (5+3)p Basial endite (4+4)pd, m (5+3)p* (4+4)? (4+4)p* (4p, 1sp+4p)*
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