176 CADULUS-GADILA. 



events, in the absence of a larger series of specimens, I believe it 

 safer to include both under one species. ( Watso7i). 



Station 24, lat. 18° 38' 30" N., long. 65° 5' SO" W., Culebra 

 Island, West Indies, 390 fathoms. 



C. eiirtus var. congruens Watson, Journ. Linn. Soc. Lond., VoL 

 xiv, p. 527 (1879) ; Chall. Rept., Scaphopoda, p. 21, 22, pi. 3, fig. 

 7a. 



C. SENEGA LENSis Locard. 



Shell of relatively large size, of strongly conoid form, rather 

 short and stout, quite arcuate throughout, a little contracted at 

 base, tapering slowly and progressively toward the apex ; inferior 

 region terminating in a transversely oval section in a quite oblique 

 plane, contracted for a distance apparently equal to one-tenth the 

 total length, in such a manner that the maximum inflation of the 

 shell is well downward and at the same time but little prominent ; 

 anterior and posterior profiles subsymmetrical ; shell rather thin, 

 solid, subopaque, of a dirty ivory white tint after death of the 

 animal, very glossy, appearing completely smooth. Length 20, 

 maximum diam. 35, curvature 1"5 mill. {Locard'). 



Senegal, 3200 meters depth* 



Cadulus senegalensis Loc, L'Echange Revue Linneenne, Jan.^ 

 1897, p. 3. 



C. STRANGULATUS Locard. 



Shell of small size and narrowly elongated subcylindroid form, 

 little inflated, feebly arcuate, conspicuously more contracted in the 

 superior region than in the inferior; superior region very short, 

 terminating above by a slightly oval section in a noticeably oblique 

 plane; inferior region delimited, quite high, terminating in a feebly 

 oval section in a decidedly oblique plane. Anterior profile nearly 

 straight, very feebly arcuate above, a little salient below the median 

 region ; outer profile very plainly arched, continuous above, with 

 the edge of the superior region, the maximum bulging a little 

 below the middle, shell thin, quite solid, subtransparent, becoming 

 opaque white after death, smooth and glossy. Length 4*5, greatest 

 diam. 1, least 0*5 mill. (Loc.) 



Gulf of Gascony and off Marseilles, between 555 and 2018 meters 

 depth. 



Cadulus sirangulatus Loc, L'Echange, 1897, p. 4. 



