Prof, E. Forbes on Fossil Invertebrata from Southern India. 131 



which become rather suddenly obsolete in the centre, but are again strongly marked 

 close to the suture, where all the whorls are slightly hollowed out. The plications 

 of the columella are obscured by rock, but the shell is evidently a Voluta of the 

 same group with that last described. Young specimens are not so ventricose as 

 old ones. 



Locality, Pondicherry. 



3. Voluta septemcostata, sp. nov. PI. XII. fig. 3. 



V. testa elongate, fusiformi, anfractibus scabris, convexiusculis, longitudinaliter 7-costatis, 

 costis crassis rotundatis. 



Length of the broken specimen lj\ inch. (Probable entire length ly*^ inch.) Breadth 

 (full) 0/^ inch. Length of second whorl Oy'g inch. 



Shell lanceolate, whorls probably six or seven ; under the lens the surface is 

 rough through raised striae of growth. The cast is smooth. The ribs become 

 nearly obsolete at the suture, and are very tumid a little above the centre of each 

 whorl. 



The London clay Voluta costata, is related, but distantly, to this species. A 

 species from the Craie chloritee of France, Voluta Renauxiana, is equally near it. 



Locality, Pondicherry. 



4. Voluta muricata, sp. nov. PI. XII. -fig. 4, 



V. testa ovata, spird brevi, anfractibus 5, ultimo superne subangulato, longitudinaliter (14) 

 costata, spiraliter sulcata, costis muricatis, plicis inferioribus frequentioribus ; apertura lan- 

 ceolata. 



Length O^i inch. Breadth O/g inch. Height of spire 0/^ inch. 



An ovate shell, barred by fourteen longitudinal ribs which are decussated and 

 muricated by transverse ones, which are distant at the upper part of the body- 

 whorl, where they leave nearly square interstices, but are much more frequent in 

 the middle and very numerous towards the canal, where the longitudinal ribs 

 become obsolete. The sutures are very slightly compressed. The plaits on the 

 pillar-lip are not exposed. 



The London clay Voluta Lima, comes very near this species, but is easily 

 distinguished by the presence in the former of a canal winding round the summit 

 of the whorls. 



Locality, Pondicherry. 



5. Voluta Camdeo, sp. nov. PI. XIL fig. 5, o, b. 



V. testa ovato-oblonga, spira exserta, anfractibus 6, planatis superne subangulatis, prope 

 suturam canaliculatis ; longitudinaUter multiplicatis ; ultimo inferne de medio spirahter striato, 

 suturis profundis. 



Length Oj\ inch. Breadth Of inch. 



