302 Mr. A. Adams on new Mollusca from Japan. 



Apertura ampla, septo interno piano semilunari ad partem posti- 

 cam instructa ; margiue crenulato, antice valde fissurato. 



This genus seems to combine the characters of Crypto, and 

 Emarginula, and almost deserves to be considered the type of a 

 new family. The internal septum distinguishes it from all the 

 other Fissurellidce. 



Zeidora calceolina, A. Adams. 



Z. testa oblonga, lirieis elevatis concentricis et radiantibus eleganter 

 cancellata ; sulco mediano lateribus elevatis ; apice postice de- 

 flexo ; septo margine acuto, integro. 



Hab. Straits of Korea, 16 miles from Mino-Sima ; 63 fathoms. 



Genus CRANOPSIS, A. Adams. 



Testa ovata, pileiformis, superficie caelata, apice integro, subspirali, 

 postice recurvo. Perforatio elongata, intus concamerata, inter 

 apicem et marginem anticum posita. Apertura ovalis, expansa, 

 margine crenulato. 



This genus has the internal vaulted chamber over the fora- 

 men, as in Cemoria, and the sculptured surface and median 

 position of the perforation, as in Rimula. The specimens serving 

 for the description were all adult shells, and are not the young 

 of Glyphis. 



Cranopsis pelex } A. Adams. 



C. testa pileiformi, liris radiantibus cremilatis interstitiis cancellatis 

 ornata ; fissura intus concamerata, marginibus callosis, extus labiis 

 elevatis longitudinalibus marginatis ; foramine lineis increment! 

 transversis apicem versus currentibus ; margine crenulato. 



Hab. Off Mino-Sima, Straits of Korea ; dredged from 63 

 fathoms. 



Genus KLEINELLA, A. Adams. 



Testa ovata, tenuis, umbilicata, superficie cancellata ; spira producta, 

 apice obtuso. Apertura elongata, aritice producta et integra ; labio 

 tenui, simplici ; labro postice angulato, in medio recto, margine 

 acuto. 



This genus most nearly resembles Action, but is without any 

 fold on the columella ; the umbilicus, moreover, is wide and deep, 

 and the surface of the shell is cancellated. The outer lip forms 

 an angle posteriorly with the last whorl, and is straight in the 

 middle. 



Kleinella cancellaris, A. Adams. 



K. testa oblonga, late et profunde umbilicata ; spira elatiuscula, apice 

 obtuso ; pallide fusca ; anfractibus 3^ convexiusculis (ultimo ven- 



