124 Prof. E. Forbes on Fossil Invertebrata from Southern India. 



A ventricose shell of few whorls (in one instance seven), the last comparatively 

 much the largest. They are banded by distant regular spiral ribs, the uppermost 

 of which is distant from the suture. The mouth is slightly angulated at the base. 



Locality, Pondicherry. 



4. Turritella Sowerbii, sp. nov. PI. XV. fig. 4. 



T. testa conica, anfractibus (9) planis ad suturas angulato-impressis, cingulis tribus, cinctis ; 

 apertura suborbiculari. 



Length Oy% inch. Breadth of last whorl rather less than j^ of an inch. 



A tapering shell, with nine whorls, which are fiat in the centre, and suddenly 

 and angularly sloped off towards the deep suture. Three filiform ridges wind 

 round the volutions, two forming the edges of the flattened space, and the third 

 occupying its centre. The base is rather convex, and the mouth nearly round. 

 The species is gregarious. 



Locality, Trinchinopoly. 



Genus Scalaria, Lamarck. 



1. Scalaria turbinata, sp. nov. PI. XII. fig. 18. 



5. testa brevi, turrita, anfractibus 7 ventricosis longitudinaliter costatis, (costis in ultimo 

 anfractu 15) interstitiis striatis ; basi carinato; apertura suborbiculari. 



Length of largest specimen 1 inch. Breadth ~ inch. 



A short conical species, having seven ventricose whorls, which are crossed by 

 fifteen rather slender, equal, elevated, continuous ribs, closely packed on the upper 

 whorls. The base is carinated centrally by a spiral rib, below which the longitu- 

 dinal ribs become less marked. The mouth is slightly angulated by the projection 

 of the basal rib. The interspaces of the ribs are striated. The great breadth of 

 the lowest whorl gives a very conical and distinct form to this shell. There are 

 two specimens in the collection, both from Pondicherry. No recorded cretaceous 

 Scalaria resembles it. 



Locality, Pondicherry. 



Genus Vermetus, Adanson. 



1. Vermetus? anguis, sp. nov. PI. XIII. fig. I. 



To this genus in all probability belongs the fragment of an uncoiled spiral, con- 

 sisting of two loose turns of angulated rugose whorls spirally striated and semi- 

 plicated. 



Locality, Pondicherry, 



