lymn^eim: of north America. 467 



Limncea virginica Say, 1. c, pi. ii, fig. 4=Goniobasis virginica Say. 



Limncea vivipara Say, 1. c, pi. i, fig. o=Vivipara contectoides W. G. Binney. 



In the Journal de Physique, de Chemie, et d'Histoire Naturelle, 

 volume LXXXVIII, June, 1819, occur the following descriptions of 

 new genera by C. S. Rafinesque. These are not Lymnseas, nor any 

 other of the fresh water pulmonates, but probably Succinea or some 

 other marsh-loving pulmonate. The description of Espiphylla reads 

 very like that of Succinea. For the sake of completeness the descrip- 

 tions of these genera are reproduced, as given by Binney, Land and 

 Fresh- Water Shells, II, p. 70. 



"Espiphylla, 1. c, p. 423. — Differing from Lymnula {Lymnca, Auct.) by its 

 rounded aperture and its claviform tentacles carrying the eyes at their end. 

 Family Lymnidce. Only one lacustrine species, E. nympheola. 



"Cyclcmis, 1. c, p. 424. — Differs from Lymnula by its rounded shell of 

 two or three slightly oblique whorls. Aperture large, almost round. Animal 

 like that of Espiphylla? Two lacustrine species, C minutissima and C. olivacea. 



"Lomastoma, 1. c. — Shell acute, pyramidal. Aperture oblong, base obtuse, 

 summit sharp, entirely surrounded by a detached, marginal, acute lip, which 

 is decurrent and inflected at the junction of the summit; no operculum or 

 umbilicus. Animal unknown. Singular genus of the family Lymnidce ? One 

 only known species, L. terebrina. Shell subulate, smooth, four whorls, pale 

 red; aperture one-third the shell's length, breadth one-third of its length. Very- 

 rare. In brooks." 



In a volume on "Sketches of Louisville," by Dr. McMurtrie, the 

 following shells are listed by Rafinesque. These may not all be true 

 Lymnseas. They occur on page 66. 



Lymnula eburnea Rafinesque. 



Lymnula lithophila Rafinesque. 



Lymnula retusa Rafinesque. 



Lymnula turricula Rafinesque. 



Lymnula ventricosa Rafinesque. 



