OF SOUTHERN INDIA. 165 
4. CANCELLARIA (Eucir1a) Campno, Forbes, sp. PI. XIII, Fig. 14, 
1846. Voluta Camdeo, Forbes, Trans. Geol. Soc. Lond. VII, p.131, Pl. XII, Fig. 5. 
idem D’Orbigny, Gabb, Pictet, ete. 
(Hucl.) testa ovate-elongata, cylindracea ; anfractibus senis, subplanis, gradatis, 
primis duobus levigatis, ceteris transversim dense costulatis ; costulis acutis levigatis, 
postice ad suturam celeriter multo tenwioribus atque duabus lineis impressis inter- 
sectis ; spira brevi, tertiam partem totius altitudinis formante ; ultimo anfractu antice 
valde constricto, spiraliter impresse lineato; apertura oblonga, antice late effusa ; 
labro ad margimem attenuato, antice intus levigato ; labio postice incrassato, calloso ; 
columella recta, solida, triplicata, plica media crassissima; canali antice late emar- 
ginato, extus lineis tumescentibus acutis utrinque notato, 
Spiral angle 65°; sutural angle 15°. 
Height of last whorl : total height (considered as 1:00) rr neon L008 
The general form of the shell is cylindrical, being narrowed towards each end, 
more so on the spire, which measures only one-third of the total height. The upper- 
most two embryonal whorls are smooth, the following densely covered with smooth, 
acute, transverse ribs, bemg quite straight or parallel to the axis, indicating the 
height of the shell. There are 25 of those ribs on the last whorl, but their number 
is considerably less on the upper whoris, decreasing to only 12 on the fourth last, 
or the first on which the ribs appear. Along the suture the whorls are suddenly 
much contracted, and the ribs become thinner, being crossed here by two spiral 
furrows, closer to each other, than to the margin of the suture, so as to form on this 
small tubercles. Similar impressed lines or furrows are seen on the anterior portion 
of the last whorl, where it begins to become narrower. 
The aperture is elongated, ovate, anteriorly broadly emarginated, which emargi- 
nation is marked exteriorly by a broad furrow, exhibiting curved lines of growth 
and bounded on either margin with sharp swellings. The outer lip has a sharpened 
edge and interiorly, so far as is visible on a preserved anterior portion, it is smooth. 
The inner lip is posteriorly much thickened, callose, and smooth ; anteriorly on the 
columellar portion it is straight, and bears three folds, the middle one being the 
strongest and the anterior more oblique than the two previous ones, of which the 
last is again more oblique than the middle one. 
This singular fossil shell, to which the two other species of the genus here 
described are the only similar forms known, has been described by Prof. Forbes as a 
Voluta, but the general habit of the solid shell, the thickening of the inner lip, 
the folds and the canal scarcely leave a doubt that it belongs to the family of the 
CancreLLarup&, and in having a solid columella and a broad canal emarginated at 
the termination it can be only placed in the sub-genus Zuclia. D’Orbigny seems to 
have already noticed some peculiarity in Forbes’ species, because he added a query to 
the name, when quoting it in the Prodrome, IT, p. 226, although the query appears 
rather to refer to the species than to the genus. 
Loculity —Comarapolliam ; only the single figured specimens has been found 
here. Prof. Forbes gives the locality Pondicherry. 
Formation.—Arvialoor group. 
Lo 
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