96 MR. A. ADAMS ON JAPANESE GASTEROPODS. 



7. Calpurnus f.jrmosus, Sow. (Ovulum formosum, Sow. Moll. Voy. 

 Sam. pi. 7- f- t» a, b.) 



Hab. Kiuo-0-Sima. 



8. Calpurnus dorsuosus, Hinds. (Ovulum dorsuosum. Hinds, Moll. 

 Voy. Sulph. pi. 17. f. 3,4.) 



Hab. Gotto Islands, 48 fathoms. 



3. Ctphoma, Bolt. 



1. Cyphoma elongatum, .(4. Jc?. C. testa elongata, angusta, utriuque 

 valde producta, alba, in medio angulata, laevi; canalibus productis, 

 emarginatis; apertura angusta, antice subdilatata; labio Isevi, piano, 

 extus callo gibboso instructo, antice intus longitudinaliter sulcato; 

 labro crasso, in medio subangulato, extus varicoso. 

 Hab. Gotto, 48 fathoms. 



The Cyphoma group consists of the species of Ovula, Lam., named 0. 

 gibbosa, O. emarginata, and O. intermedia. The present species is much 

 more elongated and narrower even than O. intermedia, but it has the 

 dorsal ridge and other peculiarities which constitute a Cyphoma. 



4. VOLTA, BoU. 



1. Volva volva, L. (Bulla volva, Linn. Syst. Nat. ed. 12. p. 1185. — 

 Ovula volva, Lam. — Ovulum volva. Sow. Thes. Conch, pi. 99. f. 6-8.) 

 Hab. Satanomosaki, 55 fathoms. 



5. Eadius, Schum. 



1. Radius recurvus, Sow. (Ovulum recurvum. Sow. Moll. Voy. Sam. 

 pi. 7.f. 3 a, b, c.) 



Hab. Satanomosaki, 55 fathoms. 



2. Radius subreflexus. Sow. (Ovulum subreflexum. Sow. Moll. Voy. 

 Sam.pl. 7. f. 10«,6.) 



Hab. Tsu-Sima, 25 fathoms. 



3. Radius acuminatus. Sow. (Ovulum acuminatum. Sow. Moll. Voy. 

 Sam. pi. 7. f. 1 a, b.) 



Hab. Kuro-Sima, 35 fathoms. 



4. Radius obtusus. Sow. (Ovulum obtusum. Sow. Thes. Conch 

 pi. 100. f. 22-24.) 



Hab. Mino-Sima, 63 fathoms ; Kuro-Sima, 39 fathoms. 



5. Radius scitulus, A. Ad. (Amphiperas scitula, A. Ad. Proc. Zool. 

 Soc. 1854, p. 131.) 



Hab. Tsu-Sima, 25 fathoms. 



