132 Records of the Indian Museum. [Vol. XIV, 



The shell sometimes retains a trace of coloiu'. It does not seem 

 to have been banded. 



Type-specimeti. M. 11029/2, Zoological Survey of India {hid. 

 Mus.). 



We found a large series of well-preserved shells of this species in 

 a lacustrine deposit at the eastern end of the He-Ho plain. It occurs 

 in the superficial dejDosits of the same j)lain, but is there scarce. 



Our specimens are fairly uniform in structure and shape, though 

 the details of the sculpture vary slightly. The change in the direc- 

 tion of the suture above the body-whorl is not so marked in all speci- 

 mens as in the one figured, which is perhaps the best preserved in the 

 series. 



The lacustrine deposit in which the shells were found is at least 

 20 feet deep, and is divided horizontally a few feet above its apparent 

 base by a layer of peat only a few inches thick. The shells were found 

 both above and below this layer, in very fine friable grey clay. 



Taia analoga, sp. no v. 

 Plate XV, figs. 6, 7, 12 ; plate xvii, figs. 3, 4. 



The shell is rather narrowly conical, sharply pointed at the apex, 

 moderately thick, entirely non-umbilicate. It has seven complete 

 whorls in addition to a minute vestigial apical whorl or half whorl. 

 The protoconch closely resembles that of T. intha but is perhaps a 

 little broader at the base. Indeed, the whole shell is very similar, 

 differences being its greater thickness, rather broader base, larger 

 size, broader columellar callus, broader aperture ; its less regular sculp- 

 ture and greater variability in size and shape. In this variability it 

 exactly resembles T. conica and T. elitoralis, to which I regard it as 

 the He-Ho analogue. The main difference between it and the shells 

 of T. conica, T. elitoralis and T. intha lies, however, in the fact that the 

 third (or fourth) spiral ridge of the body-whorl never has a regular series 

 of spiniform projections. This ridge, indeed, is sometimes but little 

 more developed than the two immediately above it. It is more or less 

 squamous and sometimes bears irregular projections of a half scaly, 

 half nodular character. In one of the specimens figured on plate XVII, 

 the spire is not in the same straight line as the body-whorl, but this 

 is evidently no more than an individual abnormality. 



Measurements of shells. 



Total length ... 



Greatest breadth 



Length of spire (on dorsal surface) 



Length of aperture 



Breadth of aperture ... 



Type-specimen. M. 110G9/2, Zoological Survey of India {Ind. 

 Mws.'). 



