MACOMA, 95 



shell, and is much more rounded posteally ; T. soJ'uhila is also 

 believed to he different, with the beaks removed larther back- 

 wards, and T. ba/fJtira is a more delicate form of it. T. Grwulan- 

 dica seems to be a rounded form, very abrupt posteally, according 

 with a specimen sent by Mijrch and named T. tenera, Leach. 



Macoma proxima. 



Shell sub-oval, thin, white, covered with a dusky epidermis; anterior part 

 semi-oval, and lono-est, posterior termination somewhat angular ; hinge teeth two 

 in each valve, one of which is cleft. 



TelJina sonllda, Coutiiouy, Best. Journ. Nat. Hist. ii. 59, pi. 3, fig. 11. — Mighels, 

 Jouni. B. 8. N. H. iv. .317. — Philippi, Ablnld. (Tell.) pi. 3, tig. G. 



Sanguinohin'a sonlida, Gould, Inv. Mass. l.st ed. 67. 



Tellina proxima, Gray, Zool. Beeclicy's Voy. 154, pi. 44, fig. 4. — Smith, Worn. Trans, 

 viii. 105, pi 1, fig. 21. — Hanley, in Sowcrby, Thcs. Couch, i. 313, ])1. 66, rig. 264, 

 pi. 59, fig. 115 — FoiuiES and IIanl. Br. Moll. i. 307, pi. 21, fig. 1, and pi. 183, fig. 

 3. —Philippi, New Conch. (TcHina) ii. pi. 5, fig. 4. — Stimpson, Inv. Gr. Manan, 

 21 ; Sheds of New England, 21. 



Tellina lata, Gmel. from figure of Lister, pi 407, fig. 253. — Loven, Moll. Scand. 41. 



Tellina c.ulcarca, Lyell, Phil. Trans. 1836. — Fokises, Mem. Gcol. Surv. i. 411. 



Tellina tenera, Leach, Append, lluss's Voy. i. 175 (1819); Jouru. Plus. Lxxxviu. 465 

 (1819). — Gk.vy, List Br. Mas. (Br. Moll.) 42. 



Tellina siihiilosa, Spexgl., Morcii, Moll. Grwul. 18. 



Shell sub-oval, compressed, thin and luittlc, slightly gaping, in- 

 equilateral, the anterior side being longest and semi-oval ; behind 

 the beaks the margin declines rai)idly in nearly a straight line, form- 

 ing a rounded angle as it joins the base, 

 and bordered by a faint, roughened wave; 

 surface somewhat undulated by the lines of ^ 

 growth, esi)ecially on the anterior slope, |'' 

 and covered l)y a thin, dusky or dirty-white 

 epidermis ; beaks minute ; cardinal teeth 

 two in each valve, a large one which is ^^'n^^Z^ma. 



cleft, and a very delicate one which is sel- 

 dom entire ; lateral teeth wanting, or consisting of a feel)le com- 

 pression and elevation of the posterior hinge margin ; sinus of the 

 pallial impression nearly reaching the anterior muscular im])res- 

 sion ; interior Ijluish-white. Length, nine tenths of an inch; height, 

 six tenths of an inch; breadth, one fourth of an inch. 



Found in considerable numliers, and in a fresh state, in fish 

 caught off Nahant. Eastport, thin ( Cooper) ; Fishing Banks ( Wil- 

 lis) ; St. Anne, Marcouin QBell) ; Hannah Bay (James's Bay), 

 dead (Drexler) ; Northwest coast of Greenland (Hai/cs). 



