GUPPY — 3IOLLTJSCA OF TRIXTDAD. 
25 
Contjlu3 (Fitzinger) Moquin-Tandon 1850. 
Terrestrial Inoperculata with conic subtrochiform (lieli- 
ciform) thin hyaline shining shells having a simple 
peristome. 
Conulus vacans Guppy. 
Ann. and Mag. Nat. Mist. 3 ser. vol. xvii, p. 53. 
A small brownish-horn-eolored helix-shaped shell found 
chiefly on ferns and epiphytes. It is not a common species, 
but it has occurred to me near Port-of-Spain and at San 
Fernando. 
Height 2£ mill, diameter 4 mill. 
Order Limnophila. 
Animal amphibious or fluviatile. Tentacles 2, the eyes 
sessile behind them. 
The Auriculidce ( Pedipes^ Melampus) are only included in 
the present catalogue on account of their close relation to 
the other Inoperculata. Their distribution is similar to 
that of the marine mollusca ; their zoological characters 
placing them in close proximity to the terrestrial Inopercu- 
lata. 
Pedipes (Adanson) Ferussac 1821. 
Amphibious Inoperculata with imperforate globose-conic 
spirally striate shells with an aperture constricted by plaits 
of which the upper (parietal) one is larger and lamelliform, 
the others dentiform, placed on the flattened columellar 
lip ; and with a sharp peristome, callous or toothed within. 
Pedipes mirabilis Megerle. 
Turbo mirabilis, Megefle von MnJilfeldt. 
Pedipes mirabilis, Ferussac , Prodrome , p. 109, n. 2. 
» „ Pfeifftr } Mon. Auric, p. 70, n. 197. 
