PELECYPODA. 65 



Thyasira (Axinulus) ferruginosa (Forbes). 



Dall, Proc. U. S. Nat. Mus., 1901, vol. 23, p. 787. 



Kellia ferruginosa Forbes, Rept. Brit. Assoc. Adv. Sci. for 1843, 

 1844, p. 192. [MoREA.] 



Cryptodon {Axinulus) ferruginosiLS Verrilland Bush, Proc. U. S. 

 Nat. Mus., 1898, vol. 20, p. 793, pi. 87, figs. 7, 8. 



Mass.— Off Marthas Vineyard, 153 to 500 fathoms. 



Thyasira (Axinulus) ovata (Verrill and Bush). 



Cryptodon {Axinulus) ovatus Verrill and Bush, Proc. U. S. Nat. 

 Mus., 1898, vol. 20, p. 793, pi. 91, fig. 7; pi. 93, fig. 1. [off 

 Marthas Vineyard.] 



Mass. — South of Marthas Vineyard, 100 fathoms. 



Thyasira (Axinulus) succisa (Jeffreys). 



Dall, Proc. U. S. Nat. Mus., 1901, vol. 23, p. 788. 



Axinus incrassatus var. succisa Jeffreys, Ann. Mag. Nat. Hist., 

 1876, ser. 4, vol. 18, p. 492. " North Atlantic and Mediter- 

 ranean." 



Off New England, 92 to 1366 fathoms. 



Axinopsis orbiculata G. O. Sars. 



G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 63, pi. 19, figs, lla-d. 

 " VADS0." Verrill, Trans. Conn. Acad., 1882, vol. 5, p. 569. 

 Dall, Proc. U. S. Nat. Mus., 1901, vol. 23, p. 789. 



Me. — Broad Sound, Casco Bay, 15 to 30 fathoms; French- 

 man's Bay, 15 fathoms. 



Axinopsis orbiculata inequalis Verrill and Bush. 



VerrUl and Bush, Proc. U. S. Nat. Mus., 1898, vol. 20, p. 794, 

 pi. 92, figs. 5, 6. " Bay of Fundy." 



Me. — Frenchman's Bay, 15 fathoms. 

 Mass. — Off Cape Ann, 18 to 26 fathoms. 



