38 LIMNEA COLUMELLA. 



and 12 are 'L. apicina,' the perfect agreement 

 of the former shell (fig. 11) with the descrip- 

 tion and remarks, and the tolerable resemblance 

 to the figure of L. solida, and of the shell fig. 

 12, with the description of 'L. apicina;' lastly, 

 an examination of his specimen of L. solida 

 (fig. 13) afforded me by Mr. Lea. 



LIMNEA COLUMELLA, Say. 



PLATE 12. 



L. testa ovata, fragili, diaphana: anfractibus 4 convexis, 

 ultimo maximo; lineis transversis minutis corrugatis: aper- 

 tura lata. 



SYNONYMS AND REFERENCES. 



L. COLUMELLA, SAY. Nich. Encyc. (3d Amer. edit.) 

 Lymnea, No. 3. Jour. Acad. Nat. Sci., vol. i. p. 15. 



L. COLUMELLA, GOULD. Invert, of Mass., p. 215, fig. 144. 



VAR. CHALYBEA, " Ibid. p. 216, fig. 145. 



L. NAVICULA, VAL., in Rec. d'Obs. de Zool. etc. par Humb. 

 et Bonpl., vol. ii. p. 251. 



L. ACUMINATA, ADAMS. Am. Journ. Sci., vol. 39, p. 374. 



L. MACROSTOMUS, SAY. Journ. Acad. Nat. Sci., vol. ii. 

 p. 170. 



