242 melampinje. 



Genus carychium, Miiller. 



Foot not transversely divided beneath. 



Shell sub-cylindrical, thin, conic, ovate ; spire elevated, 

 whorls few, rounded; aperture small, oblong, longitudinal; 

 inner lip straight, with a single fold; outer lip thickened 

 and rather reflexed. 



Syn. A micella, part, J urine. 



Ex. C. minimum, O. F. Miiller, pi. 82, fig. 6. Shell, 

 C. minimum, fig. 6, a. 



This genus is composed of small shells resembling those 

 of Vertigo or Papilla ; the absence of operculum will dis- 

 tinguish them from Diplommatina, and the position of the 

 eyes from the genera of Helicida. The species are am- 

 phibious, and inhabit salt marshes, being usually found at 

 the roots of grass ; they are very minute, and, with the 

 exception of one from India, are members of the Euro- 

 pean and North American Faunas. 



Species of Carychium. 



elongatum, Villa. obesum, Schmidt. 



exiguuua, Say. Schmidti, Frauenf. 



Indicum, Bens. spectabile, Rossm. 



lautum, Frauenf. spelaeuin, Rossm. 

 minimum, Mull. 



Sub-fam. MELAMPIN^:. 



Animal amphibious, or living in brackish water. Tentacles 

 developed, eyes at their inner bases. 



Shell with the inner lip plicate; outer lip straight and 

 acute. 



