8 Melvill, Molluscan Fauna of the Arabian Sea, etc. 



sulcation, and the columellar plait. The sulcations in such 

 species as Monoptygma fulva, and Myonia concinna now 

 relegated to ActcBopyramis, are simple, and non-puncturate. 

 (^gratiosus, benign.) 



TORNATINA TOWNSENDI, Sp. nov. 

 (PI. I, f. 20.) 



T. testa cylindracea, delicata, papyracea, albida, vel 

 pallide straminea, 07nnin6 Icevi, parum nitente, anfractibus 

 quatuor, apud sutiiras canaliculatis, apicali mainmillatOy 

 vztreOy ulthno magnopere cceteros super ante, later ibus rectis, 

 apertura oblonga, apud basim latiore, labro recto, tenui, 

 stmplzci. 



Long. 3-50, lat. I '50 mm. 



Hab. Karachi. 



Cylindrical, papyraceous, thin, with straight sides, four- 

 whorled, including the glassy nipple-shaped apical, the 

 shell being entirely smooth, though hardly shining, deeply 

 channelled at the sutures, the last whorl ten times exceed- 

 ing the size of the others put together. Dredged 

 abundantly near Karachi ; we have seen quite a hundred 

 specimens. It is allied to T. fusiformis A. Ad. from 

 Japan, also to T. Isseli Pilsbry (^—pygmcea Issel), which 

 occurs with it, but not plentifully. 



Terebra Edgarii, sp. nov. 

 (PL 2, f. 12.) 

 T. testa attenuata, angusta, solidiuscida, cinereofusca, 

 haud nitente, anfractibus tredeciin quorum apicali Icevi, 

 subvitreo, cceteris apud suturas impressis, paullulum 

 gradatidis, spiraliter zona suturali succinctis, undique longi- 

 tudinaliter et irregulariter costulatis, costis rudibus, Icevibus, 

 interstitiis planis, cinereis, idtimo anfractu dorsaliter 

 transversim infra medium albizonato, apertura squarrose 



