%0 Journal Article
%T Description of a new species of Calliostoma (Gastropoda, Calliostomatidae) from Southeastern Brazil
%A Ana Paula Dornellas
%J ZooKeys
%D 2012
%I Pensoft Publishers
%R 10.3897/zookeys.224.3684
%X Calliostoma tupinamba is a new species from Southeastern Brazil, ranging from southern Rio de Janeiro to northern S o Paulo, and found only on coastal islands, on rocks and sessile invertebrates at 3 to 5 meters of depth. Shell and soft part morphology is described here in detail. Calliostoma tupinamba is mainly characterized by a depressed trochoid shell; eight slightly convex whorls; a sharply suprasutural carina starting on the third whorl and forming a peripheral rounded keel; and a whitish, funnel-shaped and deep umbilicus, measuring about 5%¨C10% of maximum shell width. Calliostoma tupinamba resembles C. bullisi Clench & Turner, 1960 in shape, but differs from it in being taller and wider,a smaller umbilicus and lacking a strong and large innermost spiral cord at its base. Finally, an identification key of Brazilian Calliostoma species is presented.
%K anatomy
%K Calliostoma tupinamba
%K coastal island
%K new species
%K taxonomy
%U http://www.pensoft.net/journals/zookeys/article/3684/