20 



LIMNEA FRAGILIS, Lin, 



Plate 6. 



L. testa conica, acuminata, sub-perforata; irregulariter 

 reticulata, et transversim minutissime striata: anfractibus 

 6 — 7 convexis: sutura impressa. 



SYNONYMS AND REFERENCES. 



Helix FRAGILIS, Lin. Buccinum palustre, Muller. 

 LiMNEUS elodes, Say. Joumal of the Academy of 



Natural Sciences, vol. ii. p. 169. — American Con- 



chology, pi. 31, fig. 3, March 1832. 

 Z. PALUSTRis, J. D. C. Sowerby's Catalogue of Dr. 



Richardson's Shells, No. 32. 

 LiMNMA elodes, Gould. Invcrtebrata of Massachusetts, 



p. 221, figs. 146, 147, 

 Deshaye's Lamarck, vol. viii. p. 409. 



DESCRIPTION. 



Animal fuliginous, minutely dotted with wax- 

 yellow: central portion dark above; color near- 

 ly uniform below: foot elliptical, about two- 

 thirds the length of the body whirl when 

 extended: tongue spoon-shaped, mouth mar- 

 gined in front with a black horny plate or 

 tooth. — Gould. 



