Abstract
The pasiphaeid shrimp genus Eupasiphae Wood-Mason & Alcock, 1893 (Caridea: Pasiphaeidae) currently includes four bathypelagic species: Eupasiphae latirostris (Wood-Mason, 1891), E. gilesii (Wood-Mason, 1892), E. serrata Rathbun, 1902 and E. paucidentata Crosnier, 1988. The present work describes a further new species, Eupasiphae ostrovski n. sp., on the basis of material sampled at the continental shelf and slope of the Central Brazilian coast at depths of 200 – 2000 m. The new species is somewhat similar to E. paucidentata, only known from Madagascar, but can be easily distinguished from all other congeneric species by the number and shape of lateral carinae at carapace and by the middorsal carina of the carapace being without teeth anteriorly and with 0–3 posteriorly. The new species is the first Eupasiphae representative known from the southwestern Atlantic.
References
Crosnier, A. (1988) Les Eupasiphae (Crustacea, Decapoda, Pasiphaeidae) du sud-ouest de l’océan Indien. Description d’E. paucidentata sp. nov. Bulletin du Muséum National d’Histoire naturelle. Zoologie, Biologie et Écologie Animales, 10 (4), 785–797.
De Grave, S. & Fransen, C.H.J.M. (2011) Carideorum Catalogus: the recent species of the dendrobranchiate, stenopodidean, procarididean and caridean shrimps (Crustacea: Decapoda). Zoologische Mededelingen, 85 (9), 195–588.
Holthuis, L.B. (1993) The Recent Genera of the Caridean and Stenopodidean Shrimps (Crustacea, Decapoda) with an Appendix in the Order Amphionidacea. National Natuurhistorisch Museum, Leiden.
Komai, T. & Chan, T.Y. (2012) A new species of the bathypelagic shrimp genus Pasiphaea Savigny, 1816 (Crustacea: Decapoda: Caridea) from off Hawaii, Central Pacific. Bulletin of Marine Science, 88 (1), 105–112.
https://doi.org/10.5343/bms.2011.1028Komai, T., Lin, C.-W. & Chan, T.Y. (2012) Bathypelagic shrimp of the genus Pasiphaea (Decapoda: Caridea: Pasiphaeidae) from waters around Taiwan, with descriptions of four new species. Journal of Crustacean Biology, 32 (2), 295–325.
https://doi.org/10.1163/193724011X615550Liao, Y., De Grave, S., Ho, T.W., Ip, B.H.Y., Tsang, L.M., Chan, T.Y. & Chu, K.H. (2017) Molecular phylogeny of Pasiphaeidae (Crustacea, Decapoda, Caridea) reveals systematic incongruence of the current classification. Molecular Phylogenetics and Evolution, 115, 171–180.
https://doi.org/10.1016/j.ympev.2017.07.021