OF SOUTHERN INDIA. 127 
XXVI. POLLIA, Gray, 1839. 
1, Ponta PonDICHERRIENSIS, Forbes, sp. Pl. XI, Figs. 10—12. 
1846. Murex Pondicherriensis Forbes, Trans. Geol. Soc. Lond. VII, p. 127, Pl. 13, Fig. 20. 
1350. Fusus yi D’Orbigny, Prod. II; idem, Gabb; Pictet; and others. 
Pol. testa ovata, apice acuta; ultimo anfractu maxime inflato ; anfractibus 
circiter septenis, convexis, supra angustioribus, planiusculis, transversim. 12—16- 
costatis, spiraliter costato-striatis ; striis crassis in costis transversalibus Sortioribus, 
nonnunqum subtuberculosis, una seu duabus minoribus, filiformibus, alternantibus ; aper- 
tura ovali; labro ad marginem intus sulcoso ; labio tenwi; canali brevissimo (7). 
Spiral angle 60°—68°; sutural angle 6°. 
Height of last whorl : total of shell (considered as 1:00) ... «.  0°61—0°62. 
Widthof , ,  : itsheight ( 5 ren a0 0°92. 
All the whorls are much more strongly contracted above than below and some- 
what flattened, while the lower portion is strongly convex. The transverse ribs, 
which vary between .12 and 16 in number, are posteriorly thinner, but can be generally 
traced up to the suture. Besides the sutural line there are usually on the flattened 
portion of the whorl three strive, the middle one being the strongest, and three others, 
respectively much stronger than the previous, are placed on the lower portion. 
As the size of the shell increases, thinner strize appear gradually between the prin- 
cipal ones, but there are very rarely more than two of them between two of the 
former. When the shell surface is well preserved the strixe of growth are found 
to produce on the spiral striation a fine granulation, otherwise they appear some 
what distinct only in the interstices. 
The aperture is ovate; the outer lip on its margin internally sulcated; the 
inner lip not much thickened and partially crenulated and striated. The canal was 
certainly short, and although it has not been observed with its termination perfect 
in any of our numerous specimens, it could scarcely differ in form very much from 
that of living species of the same genus, as may be seen in the restored Fig. 10 or 
11, Pl. XI. I may remark here, that this specimen is very nearly perfect, and that 
only a portion of the margin of the outer lip is broken away, the impressions of 
the interior sulcation being well preserved. The ornamentation not being otherwise 
unlike, I have long been in doubt whether it would not be more appropriate to refer 
this species to Phos, Montfort, but the want of a separate anterior fold on the inner 
lip and the comparatively great thickness and solidity of the shell agrees undoubt- 
edly better with living species of Pollia, 
Prof. Forbes described this species as Hwrex, pointing out distinctly the short- 
ness of the anterior canal, and there does not appear much reason to support 
D’Orbigny’s views in transferring the species to Fusws, from which Pollia as at 
present accepted must be kept totally distinct, intermediate between the sub- 
families wurrorvZ and FUSINE. 
