MACOMA. 95 



shell, and is much more rounded posteally ; T. soUdula is also 

 believed to l)e different, with the beaks removed farther back- 

 wards, and T. haltliica is a more delicate form of it. T. Granlan- 

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

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



Macoma proxima. 



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

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

 in each valve, one of which is cleft. 



Tdlina sonlida, Coutiiouy, Best. Journ. Nat. Hist. ii. 59, pi. 3, fig. 11. — Mighels, 

 Journ. B. S. N. H. iv. 317. — PHiLipn, Abbild. (Tell.) pi. 3, fig. 6. 



Sanyuinohirid sordidd, Gould, Inv. Mass. 1st ed. 67. 



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

 viii. 105, pi 1, fig. 21. — H.VNLEY, in Sowcrby, Thes. Conch, i. 313, pi. 06, fig. 264, 

 pi. 59, fig. 115 — FoKBES and Hanl. Br. Moll. i. 307, pi. 21, fig. 1, and pi. 183, fig. 

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

 21 ; Shells of New England, 21. 



Tellina lata, Gmel. from fignre of Lister, pi. 407, fig. 253. — Lovi:N, Moll. Scand. 41. 



Tellina calcarea, Lyell, Phil. Trans. 1836. — Fokbes, Mem. Geol. Surv. i. 411. 



Tellina teticra, Leach, Append. Ross's Voy. i. 175 (1819) ; Journ. Phys. Ixxxviii. 465 

 (1819). — Gray, List Br. Mas. (Br. Moll.) 42. 



Tellina sabiilosa, Spengl., Morch, Moll. Groenl. 18. 



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

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

 the beaks the margin declines rapidly in nearly a straight line, form- 

 ing a rounded angle as it joins the base, 

 and bordered l)v a faint, rouo-hened wave: , 



surface somewhat undulated by the lines of 

 growth, especially on the anterior slope, 

 and covered by a thin, dusky or dirty- white 

 epidermis ; beaks minute ; cardinal teeth 

 two in each valve, a large one which is ^"tT"^"^ 



' o M. proxnna. 



cleft, and a very delicate one which is sel- 

 dom entire ; lateral teeth wanting, or consisting of a feeble com- 

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

 pallial impression nearly reaching the anterior muscular impres- 

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

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



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

 caught ofFNahant. Eastport, thin (^Cooper') ; Fishing Banks (Wil- 

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

 dead (^Drexler) ; Northwest coast of Greenland {Hcif/es'). 



