A. E. Verrill—Mollusca of the New England Ooast. 215 
Spirialis bulimoides Souleyet. 
Atlanta bulimoides D’Orb., Voy., p. 179, pl. 12, figs. 36-38. 
Spirialis bulimoides Souleyet, Rev. Zool., p. 138; Voy. de la Bonite, vol. ii, p. 224, 
atlas, pl. 13, figs. 35-42, 1852. 
Rang and Souleyet, Hist. Nat. Moll. Ptéropodes, p. 64, pl. 15, figs. 3-4. 
Station 2100, N. lat. 39° 22’, W. long. 68° 34’ 30”, at the surface, 
eight living specimens (No. 38,235). 
This species occurs abundantly in all the tropical parts of the At- 
lantic, but has not previously been observed so far north, off the 
American coast. 
Clione longicaudatus Souleyet. 
Sonleyet, Voyage de la Bonite, Zool., vol. ii, p. 286, atlas, pl. 14, figs. 17-21, 1852. 
Rang and Souleyet, Hist. Nat. Moll. Ptéropodes, p. 80, pl. 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). 
Trichocyclus 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. 
Dentalium solidum Verrill, 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, the 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 sre separated by intervals usually much 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 
