Rissoa (Thapsia) portoricanaDall & Simpson, 1901, p. 433, pl. 53, fig. 20 [Basis of the current name] Type Locality: Fish Hawk sta. 6062, Mayaguez Harbor, Porto Rico Range: 18°N ; 67°W Depth: 50 m Maximum Reported Size: 3 mm Distribution: Puerto Rico References: Ponder (1983a) c Combining Genera: Alvania
Partial List of References
Dall, W. H. and C. T. Simpson. 1901. The Mollusca of Porto Rico U. S. Fisheries Commission Bulletin 20 351-524, pls. 53-58.