L^:DA.— Plate VIII. 



margine dorsali planulalim depresso ; wmhonihu^ 

 rotundis, elevatis, margine ventrali medio vix con- 

 tracto ; latere aiitico injlato, rotunda. 



The gibbous L^da. Shell solid, ventricose, oblong- 

 ovate, concentrically ribbed, covered with an olive 

 epidermis ; posterior side acuminated, subi'os- 

 trated, dorsal margin flatly depressed ; umboes 

 rounded, elevated, ventral margin very slightly 

 contracted in the middle ; anterior side inflated, 

 rounded. 



SowERBY. (Nucula) I'roc. Zool. Soc, 1832. 



Hab. Peru. 



One of the largest and mo.st solid shells in the 



genus. 



Sj. 



(I\Ius. Br 



L^DA STRIATA. Lced. testa minutd, iiiflatd, tenui, 

 coHcentrice siriatd : latere postico acuminato ; latere 

 antico injlato ; margine dorsali utrinque crenato, 

 areis de/yress-is circuinscriptis. 



The striatkd L^da. .Shell minute, inflated, thin, 

 concentrically striated ; posterior side acuminated ; 

 anterior side inflated ; dorsal margin crenated on 

 both sides, with depressed circumscribed area.'^. 



King. (Nucula) Zool. Journal, vol. v. j). 3;37. 



ffab. Patagonia. 



Species 53. (Mus. Brit.) 



LiEDA KUAGiLis. Lwd. testd 7iiinutd, injiatd,lrevi, uHA, 

 semipellucidd, dense costellis concentricis cinctd ; 

 latere postico brevissimo, acute rostrato, latere antico 

 rotundo, injlato. 



The fragile Lmd.k. Shell minute, inflated, short, 

 deep, semipellucid, closely girt with concentric 

 riblets ; posterior side very short, acutely ribbed ; 

 anterior side round, inflated. 



Chemnitz (Area) Conch., vol. vii. p. IGo, f. ;')4i'i, 



Nuada striata. Sowerby. 



