MOLLUSCA. 53 



Hab. Mindoro Sea, Philippines. 



Unlike the preceding species, the sutures of this are rather strongly impressed. 



i. Euliha tortuosa. PI. XL Pig. 26. Eul. tortuoso-acuminata, anfractibus du.od.ecim ad quatuor- 

 decim, plano-contiguis, oblique varicosis, apertura parviuscula ; eburnea, infra suturas obscure lineata. 



Hab. China Sea. 



Only the tortuous species of Eulima are varicose, depending doubtless on some conco- 

 mitant peculiarity of the animal. 



5. Euliha solidula. PL XI. Kg. 27. Eul. testa abbreviato-turrita, solidula, tortuosa, varicosa, 

 anfractibus novem ad decern, convexis, apertura parva; eburneS. 



Hab. China Sea> 

 A solid contracted shell, with the whorls more convex than in the preceding species. 



42. RISSOA, Freminville. 



1. Eissoa insighis. PL XL Eig. 20. Eiss. testa abbreviato-turrita, basin versus obesa., anfractibus 

 superne plano-angulatis, ad angulum acutis, spiraliter striatis, anfractibus primis valde contractis et longi- 

 tudinaliter peculiariter foveolatis, apertura subampla, dilatata ; albida. 



Hab. China Sea. 



This is truly a remarkable shell : the upper part of the first few whorls is peculiarly 

 flatly angled and deeply pitted longitudinally ; at the last whorl but one the angle and the 

 pits suddenly cease. 



8. PLICACEA. 



43. PYRAMIDELLA, Lamarck. 



1. Pyeahidella magnifica. PL X. Eig. 1. Pyram. testa pyramidali-conica, subcylindraeea, 

 spira? suturis impressis, anfractibus quatuordecim, plano-convexis, superne canaliculatis, longitudinaliter 

 crebriliratis, interstitiis foveolatis, anfractu ultimo ecostato, promiscue foveolato, columella fortiter tripli- 

 cata, apertura antice subemarginata ; albida, ferrugineo-fusco tincta. et maculata. 



Hab. Shores of Borneo, China Sea. 



This fine species of Pyramidella, of which only a single specimen was collected, forms 

 an interesting addition to this very limited genus. 



