Abstract
The pontoniine genus Chacella Bruce, 1986 was designated for Dasycaris kerstitchi (Wicksten, 1983) from Sonora, Mexico, the Eastern Pacific. Later, two newly described species, C. tricornuta Hendrickx, 1990 and C. mclaughlinae Li, 2006 were added to the genus (Hendrickx, 1990; Li, 2006). Recently revised (Marin, 2009) the genus became monotypic again with single species, C. kerstitchi (Wicksten, 1983), while two remaining species were transferred to newly designated genus Sandyella Marin, 2009 which can be distinguished by the dorsal ornamentation of the carapace (see Marin, 2009).
References
Bruce, A.J. (1986) Chacella, a new palaemonid shrimp genus proposed for Dasycaris kerstitchi Wicksten, 1983 (Crustacea: Decapoda: Natantia). Journal of Crustacean Biology, 6, 485–490.
Hendrickx, M.E. (1990) A new species of palaemonid shrimp, Chacella tricornuta spec. nov. (Crustacea: Decapoda: Palaemonidae) from the southeastern Gulf of California, Mexico. Zoologische Mededelingen, 63, 325–334.
Li, X. (2006) Chacella mclaughlinae n. sp., a new pontoniine shrimp from Clipperton Island (Crustacea, Caridea, Palaemonidae). Zoosystema, 28, 359–366.
Li, X. & Poupin, J. (2009) Report on some species of Palaemonidae (Decapoda: Caridea) from Clipperton Island. Journal of Crustacean Biology, 29(4), 579–594.
Marin, I. (2009) Sandyella gen. nov., a new shrimp genus for the eastern Pacific Chacella tricornuta (Hendrickx, 1990) and Chacella mclaughlinae (Li, 2006) (Caridea: Palaemonidae: Pontoniinae). Crustaceana, 82(7), 913–918.
Wicksten, M. (1983) Shallow water caridean shrimps of the Gulf of California, México. Allan Hancock Monogr. Mar. Biol. 13, 1–59.