Neogene paleontology in the northern Dominican Republic: 10. The Family Cancellariidae (Mollusca: Gastropoda) - BAP #334
Twenty species of Cancellariidae belonging to seven genera are described and figured. Their mode of occurrence and their stratigraphic ranges are discussed. Trigonostoma insulare is the only species described from the Dominican Republic which is not represented in the extensive collections studied and may not occur in the Neogene of the northern Dommican Republic. The following 10 species are described as new: Cancellaria (Cancellaria) jitncla, Cancellana (Pyructia ?) uva, Cancellaria (Sveltia) inquitinus, Cancellaria (Bivetiella) bajonensis, Cancellaria (Bivelopsia) pleclilis, Cancellaria (Herllemia) miranda, Cancellaria (Massyla) lopezana, Perplicaria canae, Axelella emblema, and Admelula zaiayana. The genus Cancellaria is represented by 13 species, which are assigned to seven subgenera. The genus Trigonostoma is represented by two species (including the enigmatic T. insulare). and the remaining five genera (Aphera, Perplicaria, Axelella, Agatrix, and Admelula) by a single species each. In terms of material, Aphera islacolonis is the most abundant species. Of the 19 species present in the collections under study only one is definitely known to occur outside of the Dominican Republic, and three others have questionably been recorded from other localities. No interpretation of this high degree of endemism is possible at this time.
P. Jung, R.E. Petit
Pages: 62, 15 pls., 18 text-figs., 1 table, foldout
Year published: 1990