178 CEETACEOUS PELECYPODA 



ponds to a thick grooved one in the right valve, and the two anterior cardinals are 

 somewhat diverijinj;, short and stout ; the lunular tootli is also small, as in the recent 

 species of Canjatis. The striation in fig. 29 has been made accidentally a little too 

 strong as compared with the size of the shell. 



Localities. — Comarapolliam, in a whitish soft sandstone (one specimen) ; 

 Garudamuugalum, in a dark grey calcareous shell-sandstone (two specimens). 

 These three specimens from the two localities are perfectly identical ; it is evidently 

 a rare shell. 



Formation. — Arrialoor and Trichinopoly groups. 



14. Cytherea [Cakyatis] intercisa, StoUczka, PI. VIII, Figs. 1-2. 



Cyth. testa snh-qiiadrangulai^iter oviilata, tumida, crassa, concentrice striata, 

 antice ac postice triincatim rotundata, ad marginem ventralem leviter couvexa ; timbo- 

 nibus j^anlo 2)rominulis, parvis, obtusiusculis, approximatis ; decUvitate antica paulo 

 excavata, postiea fere recta, deinde siib-rotundata ; siiperficie in specimine majori 

 laciniatim sen lumellose concentrice striata ; lunula parva, ovata, medio elevata, linea 

 imp)ressa marginata ; area angusta, paulo excavata, extus hand nuo'ginata ; dente 

 Imiulare ab dentibus cardinalibus remote site. 



Lengtli of largest specimen ... ... ... ... about 45 m. m. 



Height : length ... ... ... ... 0'88 



Thickness : height ... ... ... ... ■ O'SO 



Of the two specimens found one is small and the other considerably larger ; 

 on the former the shell surface is partially preserved in its original state, exhibit- 

 ing fine concentric strite ; on the second the stria3, where seen, are lamellar and thin, 

 but the shell surface is partially worn off and partially the shell is removed alto- 

 gether. The form is very characteristic, almost of a quadrangular shape witli 

 rounded edges, though if the shell was well preserved, the form would no doubt 

 be more distinctly rounded or broadly oval. The thickness is great, such as is not 

 often to be met with in recent species of Cari/atis. The cardinal teeth are not 

 visible, but the impression of the remote lunular tooth is traceable. 



Localities. — North-west of Kunanore and north of Alundanapooram, in a 

 brownish sandstone with numerous minute, bj'own oolitic grains ; apparently rare. 



Formation. — Trichinopoly group. 



CYPPvIMERIA, Conrad, 186i, (vide p. 157). 

 1. Cyprimeria analoga, Eorbes, sp., PI. V, Pigs. 21-23. 



1816. Temis analoga et ejcimia, Forbes, Trans., Gcol. Soc., Lond., vii, p. 147, pi. xv, figs. 20-21. 

 1850. Venus aiuiloga, Forbes, d'Orbigny, Prod, ii, p. 237,— irfcm auctorum. 



Cyp. testa late-ovata, compressiuscula, antice j^aulo producta, rotundata, pastier 

 rotundate sub-truncata, ad marginem ventralem leviter curvata, marginibus undique 



