332 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Litiopa bombyx Rang. 



Station 103S, clinging to floating Sargassum 



Scalaria (Opalia) Andrewsii Verrill. 



ScaJaria, uiuletermiiuHl sp., Verrill, Proc. Nat. Mus., iii, p. 376, 1880. 

 Scalaria {Opalia) Amlrcwsii Verrill, Traus. Conn. Acad., v, p. 526, pi. 57, fig. 

 35, July, 1882. 



Shell small, slender, elongated, with well-rounded wliorls and deep 

 suture. Whorls seven, crossed by about thirteen regular ribs, which 

 arc moderately elevated and evenly rounded, and, on the lower whorls, 

 a little thickened, most so in the middle; their interstices are crossed by 

 several distinct spiral ciuguli, which also render the ribs a little nodu- 

 lous; on the penultimate whorl there are about five ciuguli; on the last 

 whorl a strong, round, spiral carina surrounds the base or umbilical re- 

 gion, starting from under the upper margin of the outer lip and enclos- 

 ing a space, on which two or more faint spiral grooves can be detected. 

 Aperture round; lip continuous; margin of outer lip thickened by a rib; 

 inner lip with the edge reflected in the umbilical region; no umbilicus. 



Color white. Length, 5,5""°; breadth, 2'"™ ; diameter of aperture, 1"^-"'. 



Station 873, off Newport, E. I., 100 fathoms, 1880. One specimen. 



Dedicated to Mr. E. A. Andrews, of the U. S. Fish Commission par- 

 ties, in 1880 and 1881. 



Scalaria (Cirsotrema) Leeana Verrill. 



Trans. Conn. Acad., v, p. 523, pi. 57, fig. 34, July, 1882. 



Shell small, slender, elongated, with well-rounded whorls and deep, 

 oblique suture (apex truncated). Whorls crossed by numerous small, 

 little-elevated, oblique ribs, and on each whorl one large, strong, oblique 

 varix-like rib, those on the three lower whorls nearly in one line, the last 

 foruiing the greatly thickened margin of the lip. Both the ribs and the 

 wider intervals between them are crossed by very numerous and fine 

 spiral stride. Aperture small, round-ovate, surrounded by a much thick- 

 ened, continuous margin close to the edge; this rim around the outer lip 

 is crossed by oblique strire ; base with spiral striiP, but without a distinct 

 carina; no umbilicus. Size about the same as the preceding species. 



Ofl' Martha's Vineyard, station 1038, 14G fathoms, 1881. 



Named in honor of Prof. L. A. Lee, of Bowdoin College, and of the 

 U. S. Fish Commission party in 1881. 



Acirsa costulata (Migliels) Verrill. 



TurritcUa costulata Mighels. Proc. Boston Soc. Nat. Hist., i, p. 50, 1841; Bos- 

 ton Journal Nat. Hist., vol. iv, p. 50, pi. 4, fig. 20, 1842. 

 Gould, Invert. Mass., ed. ii, p. 318, fig. ^87. 

 Scalaria Escliriclitii Midler, Kroyer's Tidsskr., iv, p. 83, 1842. 

 Acirsa horcalis (Morcli) Verrill, Amer. Jouru. Sci., iii, pp. 210, 281, 1872. 

 Crab Ledge, ott" the southern part of Cape Cod, stations 005 and 981, 

 in 15 and 32 fathoms. Previously known from the Bay of Fundy, and 

 northward to Greenland. 



