(pO = 29a ae 
Mr. A. Adams on new Mollusca from Japan. 421 
17. Turbonilla metulina, A. Adams. 
_T. testa pyramidato-subulata, turrita, tenui, lactea,opaca ; anfractibus 
normalibus 9, convexis; costis obliquis, prominentibus, sequidi- 
stantibus, interstitiis lirulis elevatis spiralibus decussatis ; anfractu 
ultimo costis ad peripheriam desinentibus, basi levi convexo ; 
apertura subquadrata; labio recto. 
Hab. Mino-Sima; 63 fathoms. 
The species of Turbonilla obtained by me from the Japanese 
side of the Korea Strait and from other parts of the Sea of 
Japan are, with one exception (viz. 7. perfecta, A. Adams), dif- 
ferent from those I discovered at Chosan, in the Korea peninsula, 
and at Port Hamilton, one of the Korean archipelago. They 
are all very elegant and of delicate construction. 
Genus Leucotina, A. Adams. 
1. Leucotina exarata, A. Adams. 
L. te8ta ovato-conica, alba, umbilicata, solidiuscula; anfractibus 43, 
convexiusculis, transversim liratis, interstitiis tenuissime longitu- 
dinaliter striatis ; apertura ovata, postice acuta; plica parietali vix 
mediana, parva, obliqua. 
Hab. Tabu-Sima; 25 fathoms. 
2. Leucotina insculpta, A. Adams. 
L. testa acuminato-ovata, alba, perforata, solidiuscula ; anfractibus 43, 
convexiusculis, transversim liratis, interstitiis valde punctatis ; 
apertura oblonga, postice angustata, antice dilatata; labio incras- 
sato, plica parietali vix celato. 
Hab. Korea Strait ; 46 fathoms. 
Genus Dunxeria, P. P. Carpenter. 
1. Dunkeria scabra, A. Adams. 
D. testa subulato-turrita, pallide fusca, imperforata ; anfractibus 84, 
convexis, costis nodosis longitudinalibus et liris elevatis tribus 
transyersis (circiter 7 in anfractu ultimo) cancellatis; apertura 
ovata; labio antice rufo tincto. 
Hab. Tsu-Sima; 16 fathoms. 
2. Dunkeria ferruginea, A. Adams. 
D. testa perparva, pyramidato-turrita, imperforata, ferruginea ; an- 
fractibus 53, convexis, ad suturas angustatis, liris duabus trans- 
versis nodulosis costellis longitudinalibus validis distantibus de- 
cussatis ; liris in anfractu ultimo 3; apertura ovato-quadrangulari, 
antice acuminata. 
Hab. Sado; 30 fathoms. 
