84 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 109 



3 specimens from north of Bering Strait. Some of the data on the 

 label of the latter became illegible, but it is known that Captain 

 Healy did not dredge north or east of Icy Cape and always in less 

 than 65 fathoms. The northern range of this species has, therefore, 

 been considered as lat. 66° N. No other specimens of this species 

 have been recorded since 1885. 



Distribution: Ungava Bay, and north of Bering Strait to Point 

 Barrow. The specimens from Point Barrow extend the known range 

 northward about 5.5 degrees of latitude and eastward at least 5.0 

 degrees of longitude in the Pacific area of the Arctic, and the range in 

 depth at least 15 fathoms. 



Lacunid sp. 



Two larval lacunids were taken from 341 feet on Oct. 11,1949. 

 Since Aquilonaria turneri was the only lacunid taken from the area 

 under investigation, these larvae probably belonged to this species. 

 Unfortunately, both specimens were lost in transit. 



Family Rissoidae 



Genus Cingula Fleming, 1818 



Cingula castanea Mbller, 1842 



var. alaskana Dall 



Plate 17, figures 8, 9 



Rissoa castanea MoUer, 1824b, p. 82. 



Cingula castanea G. Sars, 1878, p. 174, pi. 10, figs. la-b. 



Alvania castanea var. alaskana Dall, 1886, p. 307, pi. 4, fig. 9. 



Thirteen specimens were dredged: 3 (about 1.7 mm.) from 175 feet; 

 1 (about 2.7 mm., and with about 5 whorls or less) from 184 feet; 2 

 (1 shell dissolved, the other about 1.4 mm., with about 3 whorls) 

 from 216 feet; 1 (about 1.9 mm., with 3 whorls) from 328 feet; 2 

 (aboutl .2 mm., with about 3 whorls or less) from 341 feet; 3 (from about 

 1.8 to 2.6 mm.; 2 with about 3 whorls, 1 with about 4.5 whorls) 

 from 477 feet; and 1 (about 1.7 mm., with about 4 whorls or less) from 

 741 feet. (The number of whorls includes the nucleus, which is 

 usually partially eroded away.) 



Discussion: These specimens have yellow operculums. The 

 whorls of the shells from 184 and 741 feet and 2 from 477 feet are 

 evenly rounded with flattened spiral bands, separated by narrow 

 incised lines, beginning close to the sutures; the whorls of those 

 from 175, 216, 328, and 341 feet, and of 1 from 477 feet, have a slight 



