400 CRETACEOUS PELECYPODA 



in beds so low in the series ; on the contrary, it has been shown to be a charac- 

 teristic fossil of the u[)permost series of cretaceous deposits ; the determination of 

 the "•eolo"-ical horizon of those Sussex beds from which the type was obtained 

 requires, therefore, confirmation. 



The species has been recorded by Eichwald from various parts of Russia down 

 into the Crimea; it was known long ago from Galicia (at Lemberg) and from 

 almost all parts of Europe, being common in the Gosau deposits of the Austrian and 

 Bavarian Alps, in the upper beds of the Plsener of Bohemia, Saxony, Braunschweig, 

 Hanover, near Aachen, &c., &c. ; it very often here occurs wdth Belemnitella 

 mud'omta; equally commonly it is quoted from the Netherlands, France, and 

 Italy. Coquand records it from the Campanien and Santonien in the Province 

 Constantine (Algiers), Bey rich from Tripoli, and various authors from different 

 districts of North America, though Meek in his last Check-list questions the 

 identity of the American form with the European. 



2. Inocebamus multiplicatus, StoUczka, PI. XXVIII, Fig. 1. 



III. testa elonuate-ovata , tumida, ceqmvalvi, valcle inceqidlatei'ali, iimbonibus 

 cmticis, mb-cmgustatis, valcle inctirvis et approximatis ; parte anteriore nonprominente, 

 oblique conve.vmscule descendente, margine snperiore longo, rect'mscido, posteriore late 

 sub-rotuiidato ; mperficle costitUs concentricis p)ermnnerosis, aid cequidistantibus, aid 

 siilcis angustioribus septaratis, ornata. 



This species has nearly the same shape as the typical form of I. Cripisianus ; 

 perhaps a little more oblique, the umbones are somewhat narrower, more distinctly 

 incurved and terminal, the anterior side sloping backward and not projecting 

 in front of them ; the surface is covered with very numerous closely set con- 

 centric ribs, gradually increasing in strength until near the margin their thickness 

 becomes again somewhat smaller ; on the anterior slope they are almost quite 



obsolete. 



Among European species I only know the original figure of I. inidulatus, 

 Maut., which agrees somewhat in form and ornamentation with our Indian fossil, 

 but Mantell says that the anterior side of this species is strongly projecting and 

 rounded. I. undulatiis, Mant., has been by different palaeontologists identified 

 \nth J. striatus, Mant., but on account of the character just mentioned the 

 identification seems very doubtful, and it is certainly not supported by the 

 ornamentation shown in Mantell' s original figures of the specimens described 

 respectively under the two names. 



Localities.— ^oloiwYC, west of Garudamungalum, west of Karapaudy, Aluudaua- 

 pooram, in sandstone, not common. The largest specimen is about 100 m. m. long 

 and 60 m. m. high. 



Forma tio>i. — Trichinopoly group. 



