426 0)1 Gasteropoda collected in Japanese Seas. 



44. Admete ovata, sp. nov. 



Tcstii ovato, tenuis, scniipillucida oa^nileo-alba ; aufractus 4-5 coii- 

 vexi, supremi 2-3 crosi, pcnultinius longitudinaliter oblique plica- 

 tus, plicia superne suturam non attiuf^culibus et spiraliter striatus, 

 ultinius maximus, subglobosus, striis spiralibus circiter 20 in- 

 sculptus ; apertura ovata, longitudinis totius -p^^ adajquans ; colu- 

 mella arcuata, oallo U^nuissimo iuduta, basi oblique truncata. 



lyong. O.L mill., diam. iH ; apertura long. 4 mill., diam. 2. 



Hah. Lat. 42° 52' N., long. 144° 40' E., 48 fathoniP, 

 sand and mud ; temperature at bottom 37°-39°. 



This species is peculiar for its ovate form and very short 

 spire. Only the penultimate whorl appears to be plicated. 



45. Admete glohularisj sp. nov. 



Testa parva globularis, tenuis, nivea ; anfractus 4|, primi tres parvi 

 convexiusculi sutura leviter canaliculata sejuncti, ultimus globosus 

 magnus, omnes spiraliter tenuissime sulcati, apertiu'a aliquanto 

 magna, subpyriformis, longitudinis totius fere '^ aequans; colu- 

 mella callo tenui luto supra anfi-actum producto amicta, versus 

 basim oblique truncata ; labrum tenue, simplex. 



Long. 4 mill., diam. anfract. ultimi 2. 



Hah. Lat. 42° 52' N., long. 144° 40' E., at a depth of 48 

 fathoms, on a sandy bottom, with a temperature of 37°-39°. 



This is a very remarkable species, and unlike any shell which 

 has ever come to my notice, and probably may eventually be 

 placed in a distinct genus. It is in form very much like Cassis 

 sahuron ; and the truncaturc of the columella resembles that of 

 Verena crenocarina in the Mclaniada?, or of the genus Achatina 

 among the Pulmonata. The thin callous deposit extends from 

 the juncture of the labrum with the body -whorl to the end of 

 the columellar truncation, and spreads out some distance over 

 the whorl. 



46. Oliva [Porphyria) mustelina, Lamk. ; Conch. Icon. vi. f.23. 

 Hab. East of Niphon, 3 fathoms, soft mud. 



47. Olivella fulgurata^ Adams & Reeve. 



OUva fulgnrata, Adams & Reeve, Voy. Samarang, pi. x. f. 1:?. 

 Oliva Fortunei, A. Adams, MS. in Coll. Cumiug. 



Hah. Yamada Harbour, lat. 39° 32' N., long. 141° 53' E., 

 in 7 fathoms, bottom sand and broken shells. 



The Japanese specimens are of a jiale horny colour, varie- 

 gated with undulating chestnut markings. 



