97 



1430 Amauropsis purpurea Dall. 



St. Michael, Norton Sound, Alaska, and north to Point Bar- 

 row. 



Shell purplish, with callosities of aperture white, and an ad- 

 herent periostracum of olive, more or less streaked with brown, 

 sometimes with black stains. Height near 50 mm. 



1431 Amauropsis islandicus Gmel. 

 Alaska region and adjacent Polar Sea. 



Shell invariably white, periostracum caducous, height 2 5 mm. 



1432 Calliostoma turbinum Dall. 



Off Point Conception, to San Diego, Cal., in 100-500 fms. 



Shell small, turbinate, thin, nacre shining with a peculiarly 

 coppery lustre, apex white, periphery painted with purple-brown 

 flammules, and the spirals more or less articulated with the same 

 color; pillar white. 



1433 Calliostoma iridium Dall. 

 Off Panama, in 127 fms. 



1434 Gibbula Canfleldi Dall. 



Monterey and Santa Barbara, Cal. Occurs also in the Pleisto- 

 cene. Shell pearly, with bronze-yellow pencilings obliquely to 

 suture. 



1435 Solariella carlotta Dall. 



Queen Charlotte Islands, in 1,588 fms. 



1436 Ganesa ? Panamensis Dall. 



Type locality: — Gulf of Panama, in 1,020 fms. 



1437 Margarites vorticiferus Dall, Cal ac pr 5:59, t 2, f 4a-b. 

 Southern portion of Bering Sea, Akutan Pass, westward to 



Atka Island, Aleutians. 



Shell salmon pink varying in depth with the individual. 



1438 Zeidora flabellum Dall. 

 Synonymy: — Emarginula flabellum Dall. 



Type locality: — off Clarion Island, Baja Cal., in 460 fms., sand. 

 Shell subtranslucent white. Lon. 12.5, lat. 7.75, alt. 3.25 mm. 



1439 Subemarginula yatesii 



"Shell large, coarse, strong, whitish gray, or pale olive green 

 on the fresher portions, especially a very narrow margin about the 

 base; sculptured with strong, not dichotomous, radial ribs, of 

 which about 20 are primary, between each 2 of which lie from 1 

 to 4 secondary riblets, most numerous at the sides of the shell: 

 besides these there is a very strong anal fasciole, higher and 

 stronger externally than any of the ribs, extending from the apex, 

 and ending in front at a notch about 3.5 mm. deep and rounded 

 above and behind; the radiating sculpture is sharply and irregu- 

 larly imbricated by the rude and profuse incremental sculpture, 

 which is too close and irregular to form reticulation; apex small, 

 pointed, not much elevated, situated 3-fifths of the way from the 

 front to the posterior margin; the fasciole descending from it 

 swerves a little to the right of the median line of the shell; inte- 

 rior white, the extreme margin pale olive green but almost linear; 

 anal furrow deep, extending nearly to the apex, where it is lost 

 in a very pale olive deposit of shelly matter; margins crenulated 

 by the sculpture; muscular impressions strong, the 2 recurved 



