Chaetotaxy and setal diversity of grooming legs in species of porcelain crabs (Crustacea: Anomura: Porcellanidae)

Authors

DOI:

https://doi.org/10.11606/1807-0205/2018.58.08

Keywords:

Fifth pereiopod, Porcellanid crabs, Seta, Setal types.

Abstract

The morphology of the fifth pereiopods was studied under scanning electron microscopy in ten species of porcelain crabs for chaetotaxy and setal diversity, namelly Megalobrachium pacificum, Megalobrachium roseum, Pachycheles grossimanus, Petrolisthes armatus, Petrolisthes tuberculatus, Pisidia brasiliensis, Pisidia longicornis, Polyonyx gibbesi, Porcellana platycheles and Porcellana sayana. Six setal types were identified: simple, pappose, sickle-shaped serrate, straight serrate, club-shaped and tooth-like cuspidate. Porcelain crabs can differ in the fifth pereiopod setal morphology, chaetotaxy and setal density, even among species within the same genus. The absence of sexual dimorphism of the grooming legs in porcelain crabs suggests that grooming eggs requires no particular grooming apparatus in females and that male and female are equal in grooming efficiency.

Downloads

Download data is not yet available.

Author Biographies

Luciane Augusto de Azevedo Ferreira, Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).

Avenida Nazaré, 481, CEP 04263‑000, São Paulo, SP, Brasil.

Marcos Tavares, Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).

Avenida Nazaré, 481, CEP 04263‑000, São Paulo, SP, Brasil.

References

Bauer, R.T. 1977. Antifouling adaptations of marine shrimp (Crustacea: Decapoda: Caridea): functional morphology and adaptive significance of antennular preening by the third maxillipeds. Marine Biology, 40: 261‑276.

Bauer, R.T. 1981. Grooming behavior and morphology in the decapod Crustacea. Journal of Crustacean Biology, 1(2): 153‑173.

Bauer, R.T. 1989. Decapod crustacean grooming: Functional morphology, adaptative value, and phylogenetic significance. In: Felgenhauer, B.E.; Watling, L. & Thistle, A.B. (Eds.). Functional morphology of feeding and grooming in Crustacea. Rotterdam, A.A. Balkema. p. 49‑73. (Crustacean Issues, vol. 6)

Felgenhauer, B.E. 1987. Techniques for preparing crustaceans for Scanning Electron Microscopy. Journal of Crustacean Biology, 7(1): 71‑76.

Fleischer, J.; Grell, M.; Høeg, J.T. & Olesen, J. 1992. Morphology of grooming limbs in species of Petrolisthes and Pachycheles (Crustacea: Decapoda: Anomura: Porcellanidae): a scanning electron microscopy study. Marine Biology, 113: 425‑435.

Forster, C. & Baeza, J.A. 2001. Active brood care in the anomuran crab Petrolisthes violaceus (Decapoda: Anomura: Porcellanidae): grooming and brooded embryos by the fifth pereiopods. Journal of Crustacean Biology, 21(3): 606‑615.

Garm, A. 2004a. Mechanical functions of setae from the mouth apparatus of seven species of decapod crustaceans. Journal of Morphology, 260: 85‑100.

Garm, A. 2004b. Revising the definition of the crustacean seta and setal classification systems based on examinations of the mouthpart setae of seven species of decapods. Zoological Journal of the Linnean Society, 142: 233‑252.

Guinot, D.; Tavares, M. & Castro, P. 2013. Significance of the sexual openings and supplementary structures on the phylogeny of the brachyuran crabs (Crustacea, Decapoda, Brachyura), with new nomina for higher-ranked podotreme taxa. Zootaxa Monograph, 3665(1): 1‑414.

Høeg, J.T. 1985. Cypris settlement, kentrogon formation and host invasion in the parasitic barnacle Lernaeodiscus porcellanae (Müller) (Crustacea: Cirripedia: Rhizocephala). Acta Zoologica, 66: 1‑45.

Holmquist, J.G. 1989. Grooming structure and function in some terrestrial Crustacea. In: Felgenhauer, B.E.; Watling, L. & Thistle, A.B. (Eds.). Functional morphology of feeding and grooming in Crustacea. Rotterdam, A.A. Balkema. p. 95‑114. (Crustacean Issues, vol. 6)

Keiler, J. & Richter, S. 2011. Morphological diversity of setae on the grooming legs in Anomala (Decapoda: Reptantia) revealed by scanning electron microscopy. Zoologischer Anzeiger, 250: 343‑366.

Martin, J.W. & Abele, L.G. 1988. External morphology of the genus Aegla (Crustacea: Anomura: Aeglidae). Smithsonian Contributions to Zoology, 453: 1‑46.

Pohle, G. 1989. Gill and embryo grooming in lithodid crabs: comparative functional based on Lithodes maja. In: Felgenhauer, B.E.; Watling, L. & Thistle, A.B. (Eds.). Functional morphology of feeding and grooming in Crustacea. Rotterdam, A.A. Balkema. p. 75‑94.

Ritchie, L.E. & Høeg, J.T. 1981. The life history of Lernaeodiscus porcellanae (Crustacea, Rhizocephala) and co-evolution with its porcellanid host. Journal of Crustacean Biology, 1: 334‑347.

Schembri, P.J. 1982. Functional-morphology of the mouthparts and associated structures of Pagurus rubricatus (Crustacea: Decapoda: Anomura) with special reference to feeding and grooming. Zoomorphology, 101: 17‑38.

Watling, L. 1989. A classification system for crustacean setae based on the homology concept. In: Felgenhauer, B.E.; Watling, L. & Thistle, A.B. (Eds.). Functional morphology of feeding and grooming in Crustacea. Rotterdam, A.A. Balkema. p. 15‑26.

Downloads

Published

2018-02-20

How to Cite

Ferreira, L. A. de A., & Tavares, M. (2018). Chaetotaxy and setal diversity of grooming legs in species of porcelain crabs (Crustacea: Anomura: Porcellanidae). Papéis Avulsos De Zoologia, 58, e20185808. https://doi.org/10.11606/1807-0205/2018.58.08

Issue

Section

Original Article

Most read articles by the same author(s)