144 



BULLETIN 111, UNITED STATES NATIONAL MUSEUM. 



only those forms having a round apical orifice. The type is some- 

 what smaller than that of the other subspecies recognized. 



The type, Cat. No. 330589, U.S.N.M., was dredged by the Albatross 

 at the U. S. B. F. Station 2(354, off the Little Bahama Bank, in 660 

 fathoms, bottom of yellow ooze, temperature 39.3° F., and meas- 

 ures — length, 3 mm.; diameter, 0.9 by 0.75 mm.; anterior aperture, 

 0.5 mm.; apical aperture, 0.4 mm. 



Other lots in the museum collection are as follows: 



Locality. 



Remarks. 



Little Bahama Banlr, U. S. B. F. Station 2654. . 



Off Cape Canaveral, Florida, Station 2660 



Off Fernandina, Florida, Station 2668 



Gulf of Mexico, off Cape San Bias, U. S. B. F 



Station 2399. 

 Gulf of Mexico, off Cape San Bias, U. S. B. F 



Station 2400. 



Caesar's Creek, Florida, Eolis Station 376 



Fowey , Florida, Eolis Station 381 



Old Providence Island, north of Colon, U.S. B. F 



Station 2150. 



660 fms., yl. oz.,39.3°. 

 504 fms., 45.7°, yl. for. 

 294 fms., 46.3°, yl. s. dd. co. 

 196 fms., 51.6°, gu. m. 



169 fms., gu. m.'' 



90 fms. 

 125 fms. 

 382 fms., wh. crs. s. 



I Tyie. 



CADULUS (CADULUS) TRANSITORIUS BARBADENSIS, new subspecies. 



Plate 19, fig. 7. 



One specimen in the United States National Museum collection 

 from Barbados, taken in 100 fathoms, and which had been referred 

 to Monterosato's Cadulus jeifreysi, must be removed from that 

 Mediterranean species, although it is closely related. It is only 

 separable from C. t. transitorius in its greater measurement and in a 

 slight degree of flattening of the apical orifice. The specimen is not 

 a very good one, but the variation from the typical subspecies is 

 obvious. 



The type, Cat. No. 95375, U.S.N.M., measures— length, 3.5 mm.; 

 diameter, 0.9 by 0.8 mm.; anterior aperture, .5 mm.; apical aperture, 

 .4 mm. It was dredged by the Coast Survey steamer Hassler in 1871, 

 off Sandy Bay, Barbados, in 100 fathoms. 



A single specimen was also taken by the Iowa State University 

 Expedition of 1918 in 80 fathoms, off Bridgetown, Barbados. This 

 is a better specimen and gives a correct measurement of 4 mm. in 

 length, the other dimensions being the same as of the type. 



CADULUS (CADULUS) AMPULLACEUS Watson. 



Plate 20, fig. 6. 



1879. Cadulus ampullaceus Watson, Journ. Linn. Soc. London, vol. 14, p. 529. 

 1885. Cadulus ampullaceus Watson, Challenger Report (Scaphopoda), p. 23, 



pi. 3, fig. 11. 

 1898. Cadulus (Cadulus) ampullaceus, Pilsbry and Sharp, Tryon's Man. Conch., 



vol. 17, p. 158, pi. 25, fig. 58. 



