208 Mr. A. Adams on Species of^eteY&from Japan^ 



liris corrugatis, subincrassatis ; antice rotundata, postice rostrata ; 

 rostro elongate, attenuate, apice truncate. 

 Lat. 4 lin., alt. 2\ lin. 



Hab. Tabu-Sima; 25 fathoms. 



A small species, very much resembling in form N. Philippi- 

 neiisis, Hds., but with the surface of the valves concentrically 

 rugosely striate. 



Subgenus Cardiomya, A. Ad. 

 Shell inequivalve. Surface of the valves radiately ribbed. 

 Right valve with a prominent posterior lateral tooth. 



Cardiomya Gouldiana, Hinds. 

 Necera Gouldiana, Hds. Proc. Zool. Soc. 1843, p. 77- 

 Hab. Uraga, 21 fathoms; Gotto, 48 fathoms; Tsu-Sima, 

 25 fathoms. 



Genus Leptomya, A. Ad. 



Shell thin, ventricose, beaked posteriorly. Surface of valves 

 lamellar. Hinge with an oblique cartilage-pit in each valve. 

 Kight valve with two anterior primary teeth ; left valve with a 

 single primary tooth. Lateral teeth none. Palhal sinus deep. 



This genus belongs to the family Tellinidse, and is closely 

 allied to Scrubiculariu. 



1. Leptomya cochlearis, Hinds. 

 Kecera cochlearis, Hds. Proc. Zool. Soc. 1844, p. 98. 

 Hab. Gotto ; 48 fathoms : Seto-Uchi ; 7 fathoms. 



2. Leptom7ja adunca, Gould. 

 Scrobicularia {Capsa) adunca, Gld. Otia Conch, p. 167. 

 . Hab. Tsu-Sima; 30 fathoms. 



Subgenus Leiomya, A. Ad. 

 Shell thin, ventricose, hyaline, beaked posteriorly. Hinge 

 with an internal cartilage-pit in each valve. Right valve with 

 two anterior primary teeth ; left valve with a single primary 

 tooth. Lateral teeth two, strong, prominent. 



Leiomya adunca^ Gould. 

 Necera adunca, Gld. Otia Conch, p. 1G2. 

 Hab. Seto-Uchi ; 7 fathoms : Hakodadi, 7 fathoms. 



Genus Theora, H. & A. Ad. 

 Shell thin, smooth, pellucid, gaping at both sides. Hinge 



