528 
A. E. Verrill — Catalogue of Marine Mollusca. 
Scalaria angulata (Say). 
Scalaria clathrus, var. angulata Say, Amer. Conch., iii, pi. 21, upper figures, 1831. 
Scalaria Humphreysii Kiener, Icon. Coq. Viv., p. 15, pi. 5, fig. 16, 1838-1839. 
Scalaria angulata Yerrill, Rep. Invert. Anim. Vineyard Sd., in Rep. U. S. Fish Com., 
i, p. 660 (auth. cop., p. 366), 1874. 
Scala ( Clathrus ) angulata Ft. and A. Adams, Genera, i, p. 222, 1858. 
Stonington, Connecticut, to Florida. Not often found north of 
Chesapeake Bay. Great Egg Harbor, N. J. ! Stonington. — Linsley. 
Greenport, Long I., — S. Smith. Common at Beaufort, N. C. ! 
Acirsa gracilis Verrill. 
Acirsa gracilis Verrill, Proc. U. S. Nat. Mus., iii, p. 377, 1880. 
Plate LVII, figure 31. 
Stations 873 and 894, in 100 to 365 fathoms, off Martha’s Vineyard, 
U. S. Fish Com. 
Aclis striata Verrill. 
Adis striata Verrill, Proc. U. S. Nat. Mus., iii, 377, 1880. 
Plate LVTII, figure 13. 
One specimen was dredged by me in the Bay of Fundy, near East- 
port, Me., in 1868; another was dredged at station 873, in 100 fath- 
oms, off Newport, R. I., in 1880, by the U. S. Fish Commission. 
Aclis Walleri Jeffreys. 
G. O. Sars, Moll. Reg. Arct. Norv., p. 196. pi. 11, fig. 18. 
Aclis Walleri Verrill, Amer. Journ. Sci., xx, p. 391, Nov., 1880 ; Verrill, Proc. U. S. 
Nat. Mus., iii, p. 377, 1880. 
Plate LVII, figure 36. 
Three living specimens were taken at stations 892 and 894, in 487 
and 365 fathoms, off Martha’s Vineyard, 1880. 
Aclis tennis Verrill, sp. nov. 
Eulimella ventricosa (pars) Verrill, Proc. Nat. Mus., iii, p. 380, 1880 ( non Forbes, sp.) 
Plate LVIII, figure 19. 
Shell white, glossy, very slender, with a regularly tapered, acute 
spire. Whorls nine, evenly rounded, nearly smooth, but under the 
microscope showing slightly raised spiral lines, or obscure angles, on 
the lower whorls. Suture well-impressed. Aperture ovate-elliptical; 
outer lip well rounded, a little prolonged, or effuse, at the anterior 
