376 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



the edge of the lip ; below this the base is smooth. Whorls crossed by 

 numerous transverse, curved, elevated, rounded costse, which are about 

 as wide as their intervals, and in crossing the two upjier cingulse form 

 small rounded nodes at their intersections. Aperture broad ; columella 

 much incurved above 5 canal distinctly excurved and twisted; outer lip 

 with three angles corresponding with the three carinae. Length, 4.5™™ ; 

 breadth, 1.5""". The largest specimen measures, in length, 6.25"""; in 

 breadth, 2"-. Stations 891, 892, and 894, in 365 to 500 fathoms ; Gulf 

 of Saint Lawrence, 200 fathoms, J. F. Whiteaves. 



Truncatella truncatula (Drap.). 



Jeffrey's British Conch., iv, p. 85, pi. iv, fig. 1. — Verrill, Amer. Jouru. Sci., 

 XX, p. 250, Sept., 1880. 



This species was found by the writer, living in considerable numbers, 

 and of all ages, among the docks at Newport, E. L, July, 1880. It 

 occurred among decaying sea-weeds thrown up at high-water mark, 

 both among the vegetable matter and on the under sides of stones. It 

 was associated with Alexia myosotis, Assiminea Grayana, Anurida mari- 

 tima, Orcliestia agilis, &c. 



It may possibly have been introduced in recent times by commerce, 

 like the Littorina Uttorea, now so common on our shores; but if so, it 

 has, like the latter, become thoroughly u aturalized. This is the first time 

 that it has been observed on our coast, so far as known to me. 



Solarium boreale Verrill & Smith, sj). uov. 



A small, pretty, pale yellowish brown species, with a strong carina-like, 

 rounded, nodulous rib around the periphery. Height, 2.5'"" ; breadth, 



Ftmm 



Two living specimens from station 871, 115 fathoms. The spire is low 

 and flattened ; nuclear whorl smooth, obliquely incurved, reddish ; body- 

 whorl strongly keeled, triangular ; above the keel, flattened, and near it, 

 are about six small spiral ribs, separated by impressed lines ; upper sur- 

 face of whorls also crossed by numerous flexuous, transverse, low ribs, 

 with shorter ones interpolated toward the periphery. Base a little con- 

 vex, about as much so as the spire ; toward the periphery covered with 

 numerous fine spiral lines; also covered with many low ribs radiating 

 from the umbilicus, around which they are nodulous. Aperture trian- 

 gular, with a notch corresponding to the keel. 



Scalaiia Pourtalesii Verrill & Smith. 



Amer. Journ. Sci., xx, p. 395, Nov., 1880. 



Three fine specimens, one of them living, from stations 871, 873, and 

 874, in 85 to 115 fathoms. 



Scalaria, sp. 



An undetermined Scalaria, having the sculpture much as in S. Gran- 

 landica, but more slender in form, was taken at station 873. The spiral 

 lines are very distinct between the ribs, and also extend over them. 



