40 AIOLLUSCA OF THE GuLF OF MEXICO 10 



Genus CADULUS Philippi 



(Polyschides) quadriclentatus Dall, Bull. M. C. Z. 9, p. 36, 1881; 



18, p. 428, pi. 27, f. 5, 1889; Bull. 37, U. S. N. M., p. 76, 

 pi. 27, f. 5, 1889; Henderson, Bull, in, U. S. N. M., pp. 97- 

 100, pi. 17, f. 2, 3, 1920. 



incisus Bush, Tr. Conn. Acad., 6, p. 471, pi. 45, f. 20, 1885; 

 Dall, Bull. 37, U. S. N. M., p. 76, pi. 41, f. 20, 1889. 



Distribution. — Hatteras to Rio de la Plata, 3-52, fms. Gulf 

 of Mexico: West Florida, 10-25 fms.; Yucatan Banks 25 

 fms. 



(Poiyschides) carolinensis Bush. In Verrill, Rept. Fish Com. (for 

 1883), p. 587, 1885; Tr. Conn. Acad., 6, p. 471, pi. 45, f- 



19, 1885; Dall, Bull. 37, U. S. N. M, p. 48 {pars), pi. 41, 

 f. 19, 1S89; Pilsbrj^and Sharp, Trj-on's Man. Conch., 17, p. 

 152, pi. 25, f. 64, pi. 30, f. 241-127, 1898; Henderson, Bull. 

 Ill, U. S. N. M., p. 102, pi. 17, f. 6, 7, 1920. 



Distribution. — Hatteras to Ke}' West, 3-87 fms. Gulf of 

 Mexico, off Mobile, in 27 fms. 



(Platyschides) pocuiism Dall, Bull., M. C. Z,, 18, p. 429, 1889; 

 Bull. 37, U. S. N. M., p. 76, 1889 ; Pilsbry and Sharp, 

 Tryon's Man. Conch., 17, p. 172, pi. 33, f. 56, 57, 1898 ; 

 Henderson, Bull, iii, U. S. N. M., p. 108, pi. 17, f. 8,1920. 



Distribution. — Type found off St. Vincent, W. I., 424 fms. 

 A!so dredged, 640 fms., Yucatan Banks. 



(Platyschides) parvus Henderson, Bull. 11 1, U. S.N. M., p. 113, 

 pi, 18, f. 2, 4, 1920. 

 amiantus Dall, Bull. 37, U, S. N. M., p. 78, 1889. Net Dall's 

 t3'pical amiantus. 



Distribution. — Off Barbados, 100 fms. (type) ; Yucatan 

 Banks, 1002 fms. 



(Platyschides) elongatus Henderson, Bull, iii, U. S. N. M., p. 

 122, pi. 19, f. 15, 1920. 



