34 

 LIMNEA CAPERATA, Say. 



Plate 11.— Figs. 1—9. 



L. testa conica, anfractibus 5 — 6 convexis, transversim 

 minutissime striatis: apice acuto: sutura valde impressa: 

 apertura ovata. 



SYNONYMS AND REFERENCES. 



Lymneus caperatus, Say. Disseminator, p. 230, July 



29th, 1829.— Mrs. Say's reprint, p. 23. 

 L. umbilicata, Adams. Boston Journ. Nat. Hist., vol. 



iii. p. 325, pi. iii., fig. 14. 

 L. umbilicata, Gould. Invert, of Mass., p. 218, fig. 149. 



DESCRIPTION. 



Animal dark colored, approaching to black, 

 very minutely and sparsely dotted with whitish, 

 which is scarcely perceptible, except between 

 the eyes: tentacles long and very flat: foot as 

 long as the aperture and adjoining whirl, 

 rounded posteriorly: in the young, light spots 

 are sometimes visible through the shell. 



Shell conic, composed of five or six convex 

 turns, separated by a deep suture: apex point- 

 ed, and entire: lines of growth fine, but appa- 



