OF SOUTHERN INDIA. 135 
of Ranella, and only one belongs to Simplwm, another perhaps to Zpidromus, and the 
rest either to Zritoniwm or Hindsia, both genera respectively fewer in number 
as represented among living shells. 
XXXI. HINDSIA, Adams, 1850. 
1. Hryps1a Exim, Sfoliczka. Pl. XI, Figs. 15—17. 
Hinds. testa ovate elongata; spira ultimo anfractui equali seu paulum breviori ; 
anfractibus senis, convexis, primis duobus levigatis mamillatisque, ceteris transversin 
costatis, spiraliter costulato-striatis ; costis 10-12 in uno circuitu, parum curvatis, 
equalibus ; striis fortioribus, in ultimo numerosis, omninis in costis transversalibus 
subtuberculatis atque in mterstitiis una vel duabus striis tenwioribus ornatis ; apertura 
rotundata, antice elongata; marginibus intus crenulatis ; labro imcrassato, varici- 
formi; canali moderate prolongato, lateraliter atque suprd recurvo; basi antice 
obsolete-fissurata. 
Spiral angle 60°-70°; sutural angle 6°. 
Height of last whorl : total of shell (considered as 1:00) v. 0'63—0'52, 
The height of the spire is somewhat variable; being in some specimens, which 
are more inflated, somewhat shorter than, in others about equal to, the height of the 
last volution. The ornamentation is very characteristic, and in no way different from 
that in living species of the same genus. The whorls are more contracted above or 
posteriorly than below, and ‘are crossed by 10 to 12 equally strong, transverse ribs, 
and usually four or five strong spiral strie, which on reaching the former are eleva- 
ted into more or less sharpened tubercles. The two uppermost striee are with respect 
to the others a little thinner, the next lower somewhat more elevated than 
the following two, in addition to which occasionally a sixth one is apparent on the 
suture of the penultimate whorl. On the last volution these stronger striz are 
by far more numerous, covering the entire anterior portion, and between all of them 
there appear gradually, with the growth of the shell, one or two finer strize. 
The aperture is roundish, and anteriorly narrowly prolonged with the margins 
all round ecrenulated or obsoletely plicated. The outer lip is thickened, forming 
exteriorly a thick varix ; the inner lip is also thickened, leaving a slight fissure visible 
near the anterior extremity ; this latter is recurved laterally, and somewhat upwards, 
the margin of the inner lip, where the columella terminates, is as usual sharp. 
In the specimens figured on Pl. XI it will be observed that the small 
tubercles on the transverse ribs become fully developed only after the specimen 
reached a certain size. In this stage of growth the species recalls very much the 
ornamentation of Fusus Gaulimus, D’Orb. (figured Pal. Franc. Crét. Pl. 228, Fig. 1, 
by mistake under the name of F, rusticus, Fitton). In young specimens of H. eximia 
the spiral striee are, however, more uniform in thickness, and more closely placed to 
each other; at the same time the finer intermediate strize are almost totally wanting. 
Localities. —Comarapolliam, Arrialoor and near Vylapaudy, in the Trichinopoly 
district ; not common. 
Formation.—Arrialoor group. 
