113 MOLLUSCA OF THE GULF OF MEXICO 82 



Genus SIIVINIA Risso 



(Neosimnia) intermedia Sowerby, Spec. Conch., No. i, p. 9, f. 32, 



33, (as OvuhiiJi), Thes. Conch., Ovuhmi, No. 40, p. 479, pi. 

 100, f. 61, 62, 1848; Reeve, Conch. Icon., Ovithcm, pi. 7, f. 

 33a. b, 1865; Tryon, Man., 7, p. 251, pi. 3, f. 85-86, (as 

 Ovnla); Dall, Bull. M. C. Z., 18, p. 235, 1889; Bull. 37, U. 

 S. N. M., p. 134, '89. 



Distribution. — Hatteras to Brazil. Gulf coast, Vera Cruz. 

 15-170 fms. 



(iyeosimnia) uniplicata Sowerby, Thes. Conch., p. 478, pi. 100, f. 

 30-32, 1848, (as Ovzdum);KeevQ, Conch. Icon., Ovulum, -pi. 

 9, f. 51a, b, 1865; Tryon, Man., 7, p. 254, pi 5, f. 39, 40, 

 '85; Dall, Bull. 37, p. 134, '89; Bull. 112, U. S. N. M., p. 

 139, 1921. 



Ovulii7u subrostratum Sowerby, 1848, antillaruin and arcua- 

 tuTn^e&VQ:, 1865. carolinensis Moerch, 1877. 



Amphiperas ca7iadie7isis Moerch, 1882 (typ. err. for carolinen- 

 sis). 



Distribution. — Hatteras to Barbados and West Florida. 12- 

 121 fms. Also Pacific coast, San Pedro, Cal. to Lower Cal- 

 ifornia. 



Genus CYPHOIVIA Bolten 



gibbosa Linnaeus, Syst. Nat., ed. X, p. 726 1758, {ja.s Bulla); 

 Reeve, Conch. Icon., 15, pi. 7, f. 32, 1865, (as Ovuluni); 

 Tryon, Man., 7, p. 250, pi. 3, f, 81, 82, 1885; Dall, Bull. 37, 

 U. S.N. M.,p. 134, '89; Dall and Simpson, Bull. U. S. Fish 

 Com., I, p. 420,1901, (as Ultimtis) . 



Distribution. — Georgia to Trinidad, 15-50 fms. Also West 

 Florida. 



