Rissoa tenuisculpta Watson, 1873, [Basis of the current name] Range: 18.64°N to 7.91°S; 65.09°W to 14.4°W Depth: 713 to 768 m Maximum Reported Size: 1.9 mm Distribution: Puerto Rico: Culebra Island; Ascension Island References: Watson (1886) DdNSEWM; Ortiz-Corps (1985) c Comments: May be a Nilsia in Vanikoridae or Fossaridae (Ponder 1985). Combining Genera: Nilsia