178 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 15, 



Hydeobia Ellioti, sp. nov. PI. VIII. fig. 38. 

 H. testa parva, ovato-conica, lasvigata, apice acuto ; anfractibus 6, convexiusculis ; 



sutura impressa; apertura ovata; labro simplici. Long. "14; lat. "07 unc. 



Kateru, somewhat frequent. Named after the Honourable Walter 

 Elliot, member of the Madras Council, who has given an account of 

 the strata at Kateru, and is well known for his many scientific 

 attainments. The figure is magnified. 



Hydeobia Carteei, sp. nov. PI. VIII. fig. 39. 

 H. testa minima, ovato-conica, laevigata, apice subacuto ; anfractibus 5, convexis ; 



sutura impressa ; apertura ovata ; labro simplici. Long. - 09 ; lat. - 05 unc. 



Kateru, common. This species is in every respect smaller than 

 the preceding. It is named after H. J. Carter, Esq. The figure is 

 magnified. 



Hydrobia Bradleyi, sp. nov. PI. VIII. fig. 40. 



H. testa minima, turrita, apice subacuto ; anfractibus 5 (?), convexis ; sutura 

 impressa ; apertura oblongo-ovata ; labro simplici. Long. -09 ; lat. - 035 unc. 



Kateru, rare. Dedicated to "W. H. Bradley, Esq., to whom, as 

 mentioned above, I am indebted for my best specimens of Physa. 

 The figure is magnified. 



Hemitoma? mtjltiradiata, sp. nov. PI. VIII. fig. 41. 

 H. testa elliptica, depresso-conica, decussata ; apice subcentrali, costulis majoribus 

 18-20 ab apice radiantibus, rninoribus 3 interjectis ; costulis, prassertim ad 

 anticum marginem, squamosis. Ax. maj. - 45; min. "33; alt. - 2 unc. 



Kateru, rare, only one specimen having been found : this has in 

 front of the apex a fissure, which occasions some difficulty in deter- 

 mining the genus ; but most probably it is only accidental. The 

 figure is magnified. 



Ostrea Pangadiexsis, sp. nov. PI. IX. fig. 42. 

 0. testa ovato-elongata, superne acuta; valva superiore plana, margine intus 

 crenulato. Long. 2-9 ; lat. 1-95 unc. 



Pangadi, very common. I regret that I have had an opportunity 

 of examining only the upper valve. 



Ajstomia Kateruexsis, sp. nov. 



Var. suborbicularis. PI. IX. fig. 43 a. 



A. testa suborbiculari, subsequilaterali ; valva superiore convexa, solidiuscula, 

 irregulariter radiata ; mnbone vix prominente. Long. -75 ; lat. -88 unc. 



Var. Modiola. PL IX. fig. 43 6. 

 A. testa ovato-elongata ; umbone prominente. Long. '77 ; lat. *55 unc. 



Kateru, rare. Of the two varieties here described, I have not 

 seen the lower valve. 



Lima, sp. 

 A small species of this genus is met with, though rarely, at Kateru ; 

 but my only specimen has been lost. 



Perxa meleagrixoides, sp. nov. PL IX. fig. 44. 



P. testa meleagriniformi, valde rostrata, compressa, obsolete concentrice laminata ; 

 margine cardinali piano, recto, 5-7ties sulcato et dentato. Long. l - 76; lat. 

 l - 55 unc. 

 Kateru, rather rare. 



