IVa PD Onky b--O Nt As GOV ar, b Cl WOuUNy © F 
Pe@w urs C Aes ROM: GREE (COM RHEIEN: TAVN 
EN ONV UR BA CRW ALE RS. 
By BeBe PRESTON. -F.Z.5. 
Class GASTROPODA. 
Order OPISTHOBRANCHIATA. 
Suborder TECTIBRANCHIATA. 
Family TORNATINIDAE. 
Retusa estriata (Preston). 
Rec. Ind. Mus. X, 1914, p. 303 (as Tornatina). 
Cochin backwater, near Ernakulam (fF. H. Gravely). 
Mr. T. Iredale having pointed out to the author that the 
name ‘‘ Tornatina’’ is antedated by Retusa, the latter must take 
precedence. 
Retusa ennurensis, sp. n. 
Shell cylindrical, whitish in the median part, painted with a 
broad pale red band above, and 
having the base also painted red, 
but of a deeper hue than that on 
the upper part of the shell, sculp- 
tured throughout with fine, closely 
set, revolving striae which the mi- 
croscope reveals to be also of a red- 
dish colour, transversely marked 
with microscopic growth striae ; 
apex deeply sunken; columella 
margin white, polished, calloused, 
sloping, scarcely curved; labrum 
acute, slightly inwardly bent over 

Fig. I, la. — Retusa ennurensis, 
Spe te 5. Ae 
Fic. 16.— do., sculpture, 
x 8. 
the aperture in the lower median part ; aperture narrow, straight- 
ish, broadening above and especially below; interior of shell 
tinged with lilac. 
Alt. 5°5, diam. 2°25 mm. 
Hab.—Ennur backwater, Madras. 
