A new genus and species of leptostracan (Crustacea: Malacostraca: Phyllocarida) from Guana Island, British Virgin Islands, and a review of leptostracan genera
2004; Taylor & Francis; Volume: 38; Issue: 4 Linguagem: Inglês
10.1080/0022293021000033210
ISSN1464-5262
AutoresTodd A. Haney, Joel W. Martin,
Tópico(s)Coral and Marine Ecosystems Studies
ResumoSaronebalia guanensis, a new genus and species of leptostracan, is described from material discovered in shallow subtidal waters of Guana Island, British Virgin Islands. The specimens were collected from light traps placed on sediment and by hand from the green alga Halimeda. Saronebalia differs from other leptostracans most notably in the morphology of the antennule and the eighth thoracic limb: the articles of the antennular flagellum are fused and bear dense clusters of setae, and the eighth thoracic limb is elongate. While its eyes, like those of Nebalia, are non-tuberculate, it shares the rostral spine, dentate process of antennular article 4, and serrate pleopodal protopods of Levinebalia and Paranebalia. Specimens of the new genus lack the setal row of the exopod of pleopod 1, a complex feature characteristic of Dahlella, Levinebalia, Nebalia and Paranebalia. A cladistic analysis of the 10 leptostracan genera, using 30 morphological characters from these features and others, also supports the status of Saronebalia as a new genus. Saronebalia represents the third leptostracan genus to be recorded from the Caribbean Sea.
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