132 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol XT. 



For the sake of still greater convenience, we will divide the 

 species for purposes of description into two groups according to their 

 habits. 

 Part I. — Terrestrial. 



The only family of the operculated Land Snails represented in our 

 catalogue is the Cyclophoridce and that by only one species, 

 C. indicus (Deshayes). The family is very well represented in India 

 by a large number of very interesting species, some of the smaller ones 

 being very remarkable for their curious forms, and it is to be hoped that 

 a more thorough investigation will bring some to light in our island. 



C, indicus is the largest and most solid of our Bombay snails. It is 

 not very common, and, like all the rest of the species to be described, 

 is never found except in the monsoon. The shell is turbinate in shape, 

 about 1" in height, with a large umbilicus, or central hole round which 

 the shell is coiled. Colour white, mottled with brown, the lower part 

 of the whorl carrying a fairly well-defined brown streak, with finer, 

 somewhat broken, lines running parallel to it on the underside. 

 The perfect shell has a reflexed lip and a circular aperture, f" across. 

 The inside of the lip is red. The animal has a circular, spirally-formed 

 operculum with which it can completely close the mouth of its 

 shell. 



Of the Pulrnonata we have several land families represented, the 

 first to be described being the Limacida. 



This family is very strongly represented in this country by the 

 NaninidcB or snails with caudal mucous pores, of which India possesses 

 about 200 species. The old writers describe these species as Helix. 

 The Naninidce are divided into a number of subgenera, and we have 

 in Bombay the following species. 



Ariophanta Icevipes (Mnller), which also rejoices in the specific 

 names of trifasdata (Chemnitz) and spadicea (Gmelin), is one of the 

 commonest of our snails. The shell is sinistral, flattened, about 1" 

 across, umbilicus very small. The full-grown animal forms a fairly 

 solid lip. The shells frequently bear conspicuous marks of old lips, 

 marking periods of growth. As to colour, the shell may be said to be 

 white, striped with three bands of brown : but, on account of the 

 variation in these bands, specimens are met with varying from an 

 almost black colour to almost pure white. 



