A cryptic radiation of Caribbean sea slugs revealed by integrative analysis: Cyerce ‘ antillensis’ (Sacoglossa: Caliphyllidae) is six distinct species Author Moreno, Karina Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA 91768, USA Author Rico, Diane M. Department of Biological Sciences, California State University, Los Angeles, CA 90032 - 8201, USA Author Middlebrooks, Michael Department of Biology, University of Tampa, Tampa, FL 33609, USA Author Medrano, Sabrina Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA 91768, USA Author Valdés, Ángel A. Department of Biological Sciences, California State Polytechnic University Pomona, Pomona, CA 91768, USA Author Krug, Patrick J. Department of Biological Sciences, California State University, Los Angeles, CA 90032 - 8201, USA pkrug@calstatela.edu text Zoological Journal of the Linnean Society 2024 2023-10-12 200 4 940 979 http://dx.doi.org/10.1093/zoolinnean/zlad111 journal article 10.1093/zoolinnean/zlad111 0024-4082 PMC10983082 38566915 11240925 E8CC81A3-E625-4C48-B783-29AA9BFC83C3C Cyerce edmundsi T.E. Thompson, 1977 Cyerce edmundsi Thompson 1977: 136–137 , figs 22i, j, 24d. Type material Holotype : Discovery Bay , Jamaica , Caribbean Sea ( NHMUK 19776 ), February 1976 , 5–8 mm in length, not examined. Range Jamaica ( Thompson 1977 ). Ecology Diet unknown. Remarks Figure 19. Cyerce browneveorum , radular scanning electron micrographs of isolate 10Gei01; length of living animal, 5 mm. A, complete radula, with ascus. B, leading tooth. C, close-up view of discarded teeth in ascus. Thompson (1977) described C. edmundsi from the Caribbean as having ‘flattened, oval’ cerata containing branches of the digestive gland, with ‘pearl-like’ glands along the margin. Cyerce edmundsi was covered with ‘white pigment specks’, ‘white’ bifurcated rhinophores, and oral tentacles ( Thompson 1977 ). Radular tooth morphology was described as ‘elongated’ and ‘spoon-like’, with trifid and bifid denticles, and the penis lacked a stylet. No transverse groove across the foot was noted. The lack of a transverse groove ventrally along the foot, the presence of digestive gland tubules in the cerata, and the shape of the denticles along the tooth described for C. edmundsi indicate this specimen does not belong to Cyerce . Marcus (1982) and Hamatani (1994) suggested that C. edmundsi was a synonym of Mourgona germainae Marcus & Marcus, 1970 . A previous molecular study ( Händeler and Wägele 2007 ) included a specimen as Cyerce cf. edmundsi , but our phylogenetic analyses recovered this specimen within C. antillensis ( Fig. 2 ).