176 CADULUS-GADILA. 



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

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



Station 24, lat. 18 3& 30" N., long. 65 5' 30" W., Culebra 

 Island, West Indies, 390 fathoms. 



C. curtus var. congruens WATSON, Journ. Linn. Soc. Lond., VoL 

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

 7a. 



C. SENEGALENSIS 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. 3'5, 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 

 diarn. 1, least 0'5 mill. (Loc.) 



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

 depth. 



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



