OF SOUTHERN INDIA. 181 



EEIPHYLA, GaU, 1864, (vide p. 156). 

 \/ 1. Eriphyla lenticulaeis, Gold/., sp., PL VI, Eigs. 7-13. 



1839. Lucinalentimlaris,(j(oldif^uB^,VQiv,(3(QTm.,^. 228, pi. 146, %. 16; idem, Mliller, Romer, Geinitz 

 d'Orbigny, &c. 



1865. Artemis lenticularis, Bosquet in Staring's Bodem v. Nederlaiid, Il^e deel ; non idem Forbes (vide p. 182). 



Geinitz (Quadersandst., p. 158,) following Reuss, &c., identifies L. lens and Heickii, Romer, X. circularis 

 and V. parva, Gein., with the present species; in most cases this would appear to be correct, but not being in 

 possession of authentic specimens, or of the originals, it would be a vain task to speculate on this point. 



JEriph. testa suh-quadrangulariter orhioulata, plus minusve comp7'essaj inter dum 

 GonvexiusGula^ umhonibus prominuliSy acutis, incurvis ; decUvitate lunulcire concava^ 

 areale moderate Giirvata ; marginibus ceteris uniforme convexis ; lunula atque area 

 profundis^ marginibus acutis elevatisque instructis, prima parva, altera longa et 

 angustata ; superfioie striis subtilibus regularibus ao sulcis angustis interdum 

 namerosis ad intervalla notata ; sinu pallii parvo, latiusculo, obtusato. Cardo in 

 tttraque valva duobus dentibus cardinalibus quorum anteriori in valva sinistra et 

 posteriori in valva dextra altero crassiori^ et dente lunulare in valva sinistra elongato 

 sub'Obsoleto, fossa in valva dextra et denticulo elongato postico laterale remoto 

 foss(B in valva sinistra congruenti instructus ; f uteris latis, crassiuscuUs, liaud 

 prominulis. 



Length of largest specimen ... ... ... ... 35 m. m. 



Height : length ... ... ... ... 0-98 - 1-25 



Thickness ; height ... ... ... ... 0'37 - 0'46 



It is scarcely necessary to add anything to the description of this well known 

 species. The shell varies a little in form, but it is always more or less orbicular, 

 sometimes with an indication of a quadrangular shape. Some specimens are 

 much compressed, others somewhat convex, and these variations are equally 

 observable in our Indian specimens as in the typical ones from Aachen, of which 

 I had very good examples for comparison, obtained from Dr. Bosquet. 



Localities. — East of Anapaudy, north of Serdamungalum, and near Olapaudy, 

 mostly in a brownish sandstone ; not rare. 



i^(9rma^^o/^.— Trichinopoly group. In Europe the species appears to occur all 

 through the upper cretaceous (Ptener) beds of Germany. 



.J 2. Eriphyla Eorbesiana, StoUczka, PL VI, Pigs. 14-16. 



1846. Artetnis lenticularis, Forbes, Trans., Geol. Soc, vii, p. 147, pi. xviii, fig. 7. 



Uriph. testa fere regulariter orbicularis valde compressa, umbonibus paululum 

 tumescentibus, approximatis et incurvis; lunula profunda, anguste ovata ; area 

 fere nulla, fulcris in fissura profunda sitis ; superficie costulis acutis, tenuibus, 

 nonnmiquam paululum undulatis, interdum lamellifoimibus, interspatiis latioribus 



2x 



