NO. 1342. SYNOPSIS OF THE ASTARTIDJE-Ih I LL. 94 5 



ASTARTE FABULA Reeve, 1855. 



Polar Sea, near Point Belcher, and south to the north end of Xunivak 

 Island in 15 to 23 fathoms. Also in the eastern heniisphoiv at Fr:uiz 

 Josef Land, the coast of Greenhmd, etc. 



Leche's tig-ures of '^4. warhainr in his report on the Ve^rji laiuclli- 

 branchs indicate that he probably included this species under that 

 name. A. seiHtUratd Sowerby, 1ST4, is synonymous. For other data 

 see eastern list. 



ASTARTE BENNETTII Ball, 1903. 



Polar Sea at Bennett Island, Jeannette expedition; also in Bering 

 Sea, 5 miles west of Nunivak Island, in 24 fathoms, Dall. 



Small, solid, rather uniformly concentrically striate; polished, oliva- 

 ceous, with high beaks. Leche's figures 11 and 12, Plate 32, may have 

 been taken from a specimen of this species, Avith the posterior end 

 rather blunter than usual, and not full grown. In tiie Berino- Sea 

 specimen the striation is stronger near the beaks. 



ASTARTE VERNICOSA Dall, 1903. 



Arctic Sea and northern part of Bering Sea, fi-oni Ic\- Cape to 

 Hagemeister Island, in 7 to 28 fathoms, and southern part of Berino- 

 Sea, through the Aleutians from Attn to Atka, in S to 14 fathoms. 



Resembling ^4. fahula, but more coarsely and uniformly sulcate and 

 brilliantly polished, with an olivaceous yellow-brown periostracum, 

 narrower, longer, and less impressed lunule. 



Leche's figures T to 8, Plate 32, apparently represent this species. 



Section RIC^TOCYMA Dall. 

 ASTARTE ESQUIMALTI Baird, 1863. 



Aleutian Islands from Unalaska eastward along the coast of Alaska 

 and south to Puget Sound in 6 to 80 fathoms. 



Recognizal)le by its irregular sculpture, and reaching a height of 

 21, with a length of 23 and a diameter of 11 nun. R. inirahiUs Dall, 

 1872, was based on a young specimen of this species. 



DESCRIPTIONS OF THE FORMS X]<:WLY NARIED. 



ASTARTE POLARIS, new species. 



Plate LXIII, fig. 5. 



Shell rounded-trigonal, moderately thick, ])luish white, covered with 

 a slightly polished light-brown periostracum; valves moderately convex, 

 with the umbones high, somewhat prosogyrate, over a well-impressed 

 lanceolate lunule, which is unequally divided, the right valve bi-aring 

 the larger share; escutcheon narrower and longer than the lunule, 

 impressed, smooth; sculpture of forty or more small, narrow, regular. 



