58 MYAD^. 



While rakes are free to desecrate thy hed. 



And liear thee off, — as focmen take their spoil, — 



Far tVcjin thy friends and family to roam ; 



Forced, like a Hessian, from thy native home, 

 To meet destruction in a foreign broil ! 



Though thou art tender, yet thy humble bard 



Declares, () clam ! thy case is shocking hard." 



John G. Saxe, 



Mya truncata. 



Shell oblong-oval, inequilateral, rounded anteiiorly, truncated posteriorly ; 

 widely gaping; tooth broader than long. 



Mja truncata, Lin. Syst. Nat* 1112; Gmel. No. 1. — Fabr. Fauna Groenl. 404. — Pen- 

 nant, Brit. Zool. iv. pi. 41, tig. 14. — Chemn. Cunch. vi. 8, t. 1, tigs. 1, 2. — 

 Montagu, Test. Brit. ."32. — Maton and Rackett, Lin. Trans, viii. 33. — Wood, 

 Gen. Conch. 90, t. 17, figs. 1, 2; Ind. Test. pi. 2, fig. 1. — Dillwyn, Catal. i. 42; 

 Eec. 8h. 42. — DiisiiAVts, Encyc. Meth. iii. 5J1, pi. 229, tig. 2. — Donovan, 

 Brit. Shells, iii. pi. 92. — Lam. An. sans Vert. 2d ed. vi. 73. — Turton, Conch. 

 Diet. 97; Brit. Biv. 31. — Lister, Conch, t. 428, fig. 269. — Gualt. Test. t. 91, 

 fig. D. — Brooke, Litrod. jd. 1, tig, 10. — De Kay, Nat. Hist. New York, 240, 

 pi. 29, fig. 239. — Brown, 111. Concli. G. Br. pi. 10, tig. 2; 2d cd. pi. 4.5, fig. 2.— 

 Hanley, Kec. Sh. ])1. 2 (Mya), fig. 2; Ipsa Lin. Conch. 27. — Sowerby, Conch. 

 Man. fig. 71. — Croicii, liitr. Conch, pi 3, tigs. 6, 7. — Buuitows, Llcm pi. 4, 

 figs. 1, 2. — FoiuJES and Hanley, Br. Moll. i. 1G3, pi. 10, figs. 1, 2, 3, pi. H. fig. 1 

 (anim.). — "WoODW. Man. Moll. 317, fig. 220 (with aniiu.). — Lvell, Tr. Geol. 

 Soc. Loud. vL 137, pi. 16, figs. 5, 6 (1841 ). — Middend. Beitr. z. Mai. Ross. iii. 

 69, 1)1. 19, figs. 13-15; Siberische Keise (Moll.), lOG, pi. 25, figs. 11 - 14. — Ciienu, 

 Elem. 48, fig. 152. — Gray, Cat. Br. M. (Brit. Moll.) 68. — Loven, Ind Moll. 

 Scand. 49, — Moller, Moll. Grccnl. 17. — Stimpson, Shells of New England, 24. 



Mya priapus vcl Mentula Marina Stclleri, Tilesius, Mem. dc I'Acad. dc St. Petcrsb. viii. 

 295, t. 9. 



Ml/a Uddevalensis, Forbes, Hancock, Ann. and Mag. N. H xviii. 337 (1846) (fossil). 



Sphenia Swainsoni, Tl:rt., Br. Biv. 37, pi. 19, fig. 2 (the fry). 



Shell oblong, inequipartite, longest and rounded before, narrower 

 and abruptly cut off, generally ol)liquely, behind ; the valves are 

 strong, tleeply concave and often unequal, but sometimes the right 

 valve, and sometimes the left, is mcjst prolonged ; surface irregu- 

 larly ridged along the lines of growth ; color dingy white, covered 

 with a thick, tough, yellowish, wrinkled epidermis, which folds over 

 the edges of the shell, and is greatly prolonged posteriorly, forming 

 a tube six or eight inches long, supplying in some measure the ap- 

 parent loss of })rotection to the animal by the truncation of the 

 shell. The truncated edges are a little flaring, and the shell is 

 left wide open behind ; beaks moderately prominent, turning slightly 

 forwards ; teeth broader than long, projecting a little inwards ; inner 

 face smooth, and nearly flat ; outer face similar to that of M. 



