A. E. Yerrill — Mollusca of the Kew England Coast. 215 

 Spinalis bulimoides Souieyet. 



Atlanta hulimoides D'Orb., Voy., p. 119, pi. 12, figs. 3r,-38. 



Spirialis hulimoides Souieyet, Rev. Zool., p. 138; Voy. de la Bonite, vol. ii, p. 224, 

 atlas, pi. 13, figs. 35-4-2, 1852. 

 Rang and Souieyet, Hist. Nat. Moll. Pteropodes, p. 64, pi. 15, figs. 3-4. 



Station 2100, K lat. 39° 22', W. long. G8° 34' 30", at the surface, 

 eight living specimens (No. 38,235). 



This species occurs abundantly in all the tropical parts of the At- 

 hintic, but has not previously been observed so far north, oif the 

 American coast. 



Clione longicaudatUS Souieyet. 



Souieyet, Voyage de la Bouite, Zool., vol. ii, p. 286, atlas, pi. 14, figs. 17-21, 1852. 

 Rang and Souieyet, Hist. Nat. Moll. Pteropodes, p. 80, pi. 15, figs. 28-32, 1852. 



Station 2100, N. lat. 39" 22', W. long. 68° 34' 30", off Delaware 

 Bay, eight living specimens (No. 38,367). 



Trichocyclns Dumereilii (Oken) Esch. 



Chenu, Man. Conch., i, p. 117, fig. 514. 



Station 2100, N. lat. 39° 22', W. long. 68° 34' 30", off Delaware 

 Bay, four living specimens (No. 38,379). 



SCAPHOPODA. 

 Dentalinm solidum. Veniii, sp. nov. 



Shell Large, robust, thick and strong. Posterior third pretty regu- 

 larly curved, but only moderately so; anterior half nearly straight, 

 the amount of curvature varying in different individuals. Anterior 

 aperture large, circular, moderately oblique, with the edge, when 

 perfect, plain, thin and sharp, the shell rapidly increasing in thickness 

 farther back, in the posterior half becoming very thick and solid. 

 Posterior end tapering to a small extremity, tlie opening, when per- 

 fect, small, pear-shaped, with a moderately deep notch on the dorsal 

 side and a shallower and more rounded one beneath. Surface, in per- 

 fect specimens, somewhat glossy, but covered with numerous close, 

 very distinct, oblique lines of growth; the posterior half is also 

 marked by shallow longtitudinal striations, or small impressed 

 grooves, which are separated by intervals usually miich wider than 

 the grooves, but variable in width, with the margins of the grooves 

 well rounded ; at about the middle of the shell these lines become 



