1859.] HISL0P — FOSSIL SHELLS OF NAG I'U II. 1 79 



MODIOLA, Sp. 



A species of ModioJa occurs at Kateru, but in too fragmentary a 

 state for description. Impressions of this genus, as well as of Lima, 

 abound at Pangacfi. 



Arca striatt/la, sp. nov. PI. IX. figs. 45 a, 45 b. 



A. testa parva, ovato-oblonga?, subdepressa, tenuissime longitudinaliter striata; 



cardine subrecto, multidentato ; inargine integro. Long. '& ; hit. "5 (? ) unc. 



Kateru, rare. The only specimen found is imperfect. 



Xecula pusilla, sp. nov. PI. IX. fig. 46. 



N. testa minima, laevigata, ovato-transversa, obliqua, valde inajquilaterali ; 

 dentibus minutissimis. Long. '04 ; lat. - 0o unc. 



Kateru, rare. A delicate little shell. The figure is magnified. 

 Ltjcina parva, sp. nov. PL IX. fig. 47. 



L. testa minuta, tenui, suborbiculari, convexiuscula, eoncentrice striata ; dente- 

 laterali antico sat conspicuo. Long. - 14 ; lat. '15 unc. 



Kateru, rare, only a single valve having been found. 



Lttcina (Kellia ?) n.\sa, sp. nov. PI. IX. fig. 48. 



L. testa minima, subtrigono-orbiculari, laevigata, subcoinpressa. Long. -09 ; 

 lat. - 09 unc. 



Kateru, somewhat rare. The genus is doubtful, as the hinge 

 cannot be seen. 



Corbis elliptica, sp. nov. PI. IX. fig. 49. 

 C. testa elliptica, subventricosa, solida, cancellata ; lamellis transversis crebris, 



ad marginem ventralem crcbrioribus. antice posticeque plicato-crispis ; margine 



intus crenulato. Long. L7; lat. 19 unc. 



Kateru, rather frequent. Of this shell there are young specimens 

 which, by their greater thinness and transverseness, vary from the 

 typical form of the species as much as the C. lamellosa of Deshayes 

 diners from his C. pedum v Jus. 



Corbicula ixgexs, sp. nov. PI. IX. fig. 50. 



C. te9ta subsequilaterali, transversim ovato-rotundata, convexiaseula. eoncentrice 

 striata; natibus subcrassis, antrorsum incurvis: valv.i- dextra deiitibus car- 

 dinalibus duobus, posteriore magno ; lateralihu* lamellosis, striatic, pamm 

 arcuatis, perlongis, posteriore longiore. Long. 2'08 ; lat. 2"3 una 

 Kateru and I'an^a</i. frequent. This shell is remarkable for its 



size. The subdivision of Cyrma to which it belongs occurs in the 



rivers of India at the present day. Among my specimens their may 



be another species, thicker and more inequilateral. 



Caimuta variabilis, sp. nov. PI. IX. tigs. 51 ,/. ">] A, . ~> 1 ,-. 



C. testa solida, subquadrato-ovala Tel obliqofl Bnbrotanda : OOBtU abater viginti, 

 convcxis, uciiii-ulatii-nuflnlii-iis ; nodalifl ml luar^im-m vt-iitrali-m atijuc DOSte- 

 riorem obsoletis ; costjtruni inh-rstitiis l«nn;itiiditialitrr BOloBtis; oatabui )>ro- 



mincntibus interdnm ralde gibbooa, incurvis; margine profunda lateqoa 



crcnato. Long. 1 •'.).'{; lat. L*75unc. 



Kuteru, common, and very variable in form. 



Cardita? pvsilla, sp. nov. PI. IX. fig. 52. 

 C. testa minima, suborbiculari. tcnui ; costis tin iter 12, OUUHVUli Long. 07; 



