PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 395 



been broken off squarely. Length, 12"'"'; diameter of larger end, 2.5"""; 

 of small end, .5""". 



Another specimen of similar character, 10'""^ long and 2.5""" broad, was 

 dredged in the Gulf of Maine, 107 fathoms (station 9 B), 1873. With 

 the last-uamed specimen there was, however, a perfect living specimen, 

 7""" long and 2""" broad, having the posterior end perfect and provided 

 with the characteristic digitations around the opening. 



Siphonentalis afBnis (Sars). 



G. O. Sars, op. cit., p. 104, pi. '20, fig. 12.— Veriill, Traus. Couu. Acad., v, pi. 

 42, figs. 20 a-b. 



A specimen smaller and more slender than the preceding si)ecies, 

 and which I refer to S. affinis, was dredged by us, in 1877, in Bedford 

 Basin, near Halifax, Nova Scotia, 35 fathoms, soft mud. It is G'"'" in 

 length, 1"'™ in breadth, slightly curved, round, smooth, glossy, and trans- 

 lucent. The posterior opening is small and appears to be perfect; it 

 shows only a faint indication of a notch on the convex side. 



Siphonentalis Lofotensis (M. Sars). 



G. O. Sars, Moll. Reg. Arct. Norv., p. 104, pi. 20, figs. 11 a, h; pi. i, fig. 3. 



A few specimens that agree w^ell with the figures and description of 



this species were taken at station 891, in 500 fathoms. 



It is longer and more tapered than the last, and much less translucent. 



Cadulus propinquus G. O. Sars. 



Moll. Reg. Arct. Norv., p. 106, pi. 20, figs. 15 a,h ; pi. i, fig. 5 (deutitiou). 



This shell occurred in considerable numbers, living, at station 871, in 



115 fathoms. It is a small, polished species, rather stouter and more 



swollen than the next. 



Cadulus Jeffreysii Monterosato. 



Cadulus subfusiformis? Jefi'reys, British Conch., v, p. 196, pi. 101, fig. 3 (now 

 Sars, teste Mouter.). 

 Several specimens of a small Cadulus, somewhat swollen in the middle 

 and rather strongly bent, 1 refer to the above species. The posterior 

 aperture is simple in most of them, but slightly notched in others. 

 Station 871. 



Cadulus Pandionis Verrill & Smith. 



Aiuer. Joiirn. Sci., xx, p. 397, Nov., 1880. 



A very much larger, highly polished species occurred at many of the 



stations, but most abundantly at 869 to 871 and 873 to 877, in So to 192 



fathoms. It is swollen on the convex side, in the middle, and slightly 



angulated or gibbous at about the anterior third. It is transversely 



elliptical in section ; the anterior end decreases to the aperture, which 



is oblique, the lip being prolonged on the concave side. Posterior a])er- 



ture small, with a semicircular notch above and below. Length, 10'""; 



breadth, 2.25"'"'; of mouth, 1.75'"'"; of posterior aperture, .10'""'. 



