Omalacantha bicornuta
Description
Omalacantha bicornuta (Latreille, 1825)
(Figs. 11C–D)
Pisa bicornutus Latreille, 1825: 141 [type-locality: ‘Nouvelle Hollande’, erroneous; probably “Antilles” instead; type in MNHN (see Carmona-Suárez & Poupin 2016: 375)].
Pericera bicorna H. Milne Edwards, 1834: 337.
Pericera bicornis de Saussure, 1857: 501.
Microphrys bicornutus.—A. Milne-Edwards, 1880: 61; Rathbun 1897: 7; 1924: 21; 1925: 489, pl. 175; Rodríguez 1980: 293; Scelzo & Varela 1988: 37; Melo 1996: 224, unnumbered fig.; Lira et al. 2013: 54, tab. 1; Carmona-Suárez & Poupin 2016: 375, fig. 8E.
Omalacantha bicornuta. — Assugeni et al. 2017: 1630, tab. 1; Poupin 2018: 196–197, fig. 215; Mantelatto et al. 2020: 42, fig. 13F; Jarquín-González et al. 2022: 6, tab. 2.
Distribution. Western Atlantic: USA (North Carolina), St. Thomas, St. Martin, St. Eustatius, Antigua, Guadeloupe, Isla de Aves, Martinique, Barbados, Trinidad, Isla de Blanquilla, Isla de Margarita, Isla de Cubagua, Los Roques, Tortuga, Bonaire, Curaçao, and Venezuela (Assugeni et al. 2017; Poupin 2018; Mantelatto et al. 2020).
Material examined. Barbados, Drill Hall, St. Michael, nearshore rubble, 13°04’36.30”N, 59°36’26.63”W, 6 Ô, 2 ♀, 1 ♀ (ovig.) CW: 10.7, 14.5, 12.4, 14.8, 7.3, 7.3, 10.1, 7.3, 14.4 mm (BLSZ 142). Idem, 1 Ô CW: 10.7 mm (BLSZ 146). Idem, 1 Ô CW: 10.4 mm (MZUSP 40898). Idem, 1 Ô CW: 15.0 mm (BLSZ 213). Batts Rock, St. Michael, subtidal, 13°08’4.81”N, 59°38’12.30”W, 1 Ô CW: 20.0 mm (MZUSP 40901).
Remarks. Specimens of Omalacantha bicornuta were collected by hand at low tide in nearshore rubble habitat and caught in crab traps (~ 4m deep) on sandy bottom. Omalacantha bicornuta is very abundant in nearshore rubble habitat and can sometimes be found under the same rubble rock as Mithraculus coryphe, Mithraculus forceps, Eriphia gonagra, and Pachygrapsus transversus. Omalacantha bicornuta camouflages by attaching Caulerpa sertularioides (S. G. Gmelin) M. Howe, 1905, algae to the hooked setae on its carapace (Fig. 10D). One ovigerous female was collected in July 2019. First reported for Barbados by Rathbun (1892: 254) as Omalacantha bicornuta on specimens collected by the U.S. Eclipse Expedition to West Africa in 1890; these specimens are stored at USNM (14883). Rathbun (1921: 85) also reported specimens of Omalacantha bicornuta (three ovigerous females, one juvenile, USNM 72071; one juvenile female, USNM 71761; two males, USNM 58016; one male, USNM 71759; four males, two ovigerous females, USNM 58015). Additional specimens were also collected by this expedition but were not reported by Rathbun (one female USNM 71762; one ovigerous female, USNM 71764; one male, USNM 72074). One juvenile female specimen was collected in 1924 by G. S. Miller, who deposited this specimen at the USNM (71697). The Smithsonian-Hartford Expedition (1937) also collected specimens of Omalacantha bicornuta (two females, two ovigerous females, seven juveniles, USNM 75098; three ovigerous females, USNM 73302). Rathbun (1925: 494) reported two males and one female specimens of Omalacantha bicornuta, which were collected during the U.S. Eclipse Expedition. These specimens are stored at the USNM (one male, one female, USNM 14883; one male, USNM 26409). Windsor & Felder (2014: 158) resurrected the genus Omalacantha Streets, 1871 and assigned Microphrys bicornutus to this genus.
Genus Pitho Bell, 1835
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- BLSZ , MZUSP
- Family
- Mithracidae
- Genus
- Omalacantha
- Kingdom
- Animalia
- Material sample ID
- BLSZ 142 , BLSZ 146 , BLSZ 213 , MZUSP 40898 , MZUSP 40901
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Latreille
- Species
- bicornuta
- Taxon rank
- species
- Taxonomic concept label
- Omalacantha bicornuta (Latreille, 1825) sec. Parasram, Santana & Vallès, 2023
References
- Latreille, P. A. (1825 - 1828) Encyclopedie Methodique. Histoire Naturelle. Entomologie, ou Histoire naturelle des Crustaces, des Arachnides et des Insectes. Vol. 10. Imprimeur-Libraire, Paris, 1 - 832 pp.
- Carmona-Suarez, C. A. & Poupin, J. (2016) Majoidea crabs from Guadeloupe Island, with a documented list of species for the Lesser Antilles (Crustacea, Decapoda, Brachyura, Majoidea). Zoosystema, 38 (3), 353 - 387. https: // doi. org / 10.5252 / z 2016 n 3 a 5
- Milne Edwards, H. (1834 - 1840) Histoire Naturelle des Crustaces, Comprenant l'anatomie, la Physiologie et la Classification de ces Animaux. Vols. 1 - 3. Roret, Paris, 468 pp. https: // doi. org / 10.5962 / bhl. title. 39786
- De Saussure, H. (1857) Diagnoses de quelques crustaces nouveaux de l'Amerique tropicale. Revue et Magasin de Zoologie, 9 (2), 501 - 505.
- Milne-Edwards, A. (1880) Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico, and in the Caribbean Sea, 1877, ' 78, ' 79, by the United States Coast Survey Steamer " Blake, " Lieut. - Com. C. D. Sigsbee, U. S. N., and Commander J. R. Bartlett, U. S. N., commanding. VIII. Etudes Preliminaires sur les Crustaces. Bulletin of the Museum of Comparative Zoology at Harvard College, 8 (1), 1 - 68.
- Rathbun, M. J. (1897) List of the Decapod Crustacea of Jamaica. Annales of the Institute of Jamaica, 1 (1), 155 - 172.
- Rathbun, M. J. (1924) Brachyuran crabs collected at Curacao. Bijdragen tot de Dierkunde, 23 (1), 13 - 22. https: // doi. org / 10.1163 / 26660644 - 02301002
- Rathbun, M. J. (1925) The spider crabs of America. Bulletin of the United States National Museum, 129, i + 1 - 613. https: // doi. org / 10.5479 / si. 03629236.129. i
- Rodriguez, G. (1980) Crustaceos Decapodos de Venezuela. Instituto Venezolano de Investigaciones Cientificas, Caracas, 494 pp.
- Scelzo, M. A. & Varela, R. (1988) Crustaceos decapodos litorales de la isla La Blanquilla, Venezuela. Memorias de la Sociedad de Ciencias Naturales, 47 (129), 33 - 53.
- Melo, G. A. S. (1996) Manual de identificacao dos Brachyura (caranguejos e siris) do Litoral Brasileiro. Editora, Pleiade, S " o Paulo, 604 pp.
- Lira, C., Fernandez, D., Bolanos, J., Hernandez, G. & Hernandez-Avila, I. (2013) Contribuciones al conocimiento de la biodiversidad de crustaceos Decapodos de Venezuela. I. Primeros registros de Macrocoeloma concavum Miers 1886 y Microphrys interruptus Rathbun 1920 (Brachyura: Majoidea: Majidae). Boletin del Centro de Investigaciones Biologicas, 47 (1), 47 - 62.
- Assugeni, C. O., Magalh " es, T., Bolanos, J. A., Tudge, C. C., Mantelatto, F. L. & Zara, F. J. (2017) Ultrastructure of spermatozoa of spider crabs, family Mithracidae (Crustacea, Decapoda, Brachyura): Integrative analyses based on morphological and molecular data. Journal of Morphology, 278 (12), 1628 - 1646. https: // doi. org / 10.1002 / jmor. 20737
- Poupin, J. (2018) Les Crustaces decapodes des Petites Antilles: Avec de nouvelles observations pour Saint-Martin, la Guadeloupe et la Martinique. Publications scientifiques du Museum National d'histoire Naturelle, Paris, 246 pp.
- Mantelatto, F. L., Tamburus, A. F., Magalh " es, T., Buranelli, R. C., Terossi, M., Negri, M., Castilho, A. L., Costa, R. C. & Zara, F. J. (2020) Checklist of decapod crustaceans from the coast of the S " o Paulo state (Brazil) supported by integrative molecular and morphological data: III. Infraorder Brachyura Latreille, 1802. Zootaxa, 4872 (1), 1 - 108. https: // doi. org / 10.11646 / zootaxa. 4872.1.1
- Jarquin-Gonzalez, J., Valdez-Moreno, M. & Rosas-Luis, R. (2022) An approach to the diversity of Achelata and Brachyura (Crustacea, Decapoda) from the southern Mexican Caribbean. Diversity, 14, 649. https: // doi. org / 10.3390 / d 14080649
- Rathbun, M. J. (1892) Catalogue of the crabs of the family Periceridae in the US National Museum. Proceedings of the United States National Museum, 15, 231 - 277. https: // doi. org / 10.5479 / si. 00963801.15 - 901.231
- Rathbun, M. J. (1921) Report on the Brachyura collected by the Barbados-Antigua Expedition from the University of Iowa in 1918. In: Nutting, C. C. (Ed.), Reports on the Crinoids, Ophiurans, Brachyura, Tanidacea and Isopoda, Amphipods, & Echinoidea of the Barbados-Antigua Expedition of 1918. Vol. 9. University of Iowa, Iowa City, Iowa, pp. 65 - 88. https: // doi. org / 10.5962 / bhl. title. 11395
- Windsor, A. M. & Felder, D. L. (2014) Molecular phylogenetics and taxonomic reanalysis of the family Mithracidae MacLeay (Decapoda: Brachyura: Majoidea). Invertebrate Systematics, 28 (2), 145 - 173. https: // doi. org / 10.1071 / is 13011