296 Mr. A. Adams on new Mollusca from Japan. 
tuse at the tips, not folded or ear-like, margined with pale black. 
Eyes small, black, and sessile at the outer bases of the tentacles 
just within the margin of the head. Head bordered with pale 
black. An oblique pale-black line extends from the lower part 
of the neck down the side, ending at the operculigerous lobe, 
which is large, thick, and closely applied to the under surface of 
the last whorl. 
Hab. Simonoseki; 7 fathoms. 
Genus Scazs, Klein, 
Scala soluta, A. Adams, 
S. testa pyramidali, acuminata, alba, glabra, pellucida; anfractibus 
disjunctis, angustis varicibus 6 distantibus laminatis simplicibus 
prope suturas in angulum productis; apertura circulari. 
Hab. Port Lindsay; 15 fathoms. 
This pretty species has the loosely rolled whorls and form of 
S. hyalina, Hinds, and the simple varices of S. laxata, Sow. 
Genus Isanper, H. & A. Adams. 
1. Isander maculosus, A. Adams. 
I. testa globoso-conoidea, solida, anguste umbilicata, alba, polita, 
superne transversim sulcata maculis rufo-fuscis ornata; anfractu 
ultimo ultra peripheriam angulato; apertura subquadrata ; labio 
rectiusculo, antice dilatato ; umbilico angusto, margine crenulato- 
Tugoso. 
Hab. Gotto Islands; 71 iathoms. 
2. Isander crenelliferus, A. Adams, 
I. testa globoso-turbinata, late umbilicata, alba, solida, semiopaca, 
longitudinaliter plicato-rugosa, suturis canaliculatis; anfractibus 
ad suturas crenulatis; apertura subcirculari; labio incrassato, 
arcuato ; umbilico margine crenato. 
Hab. Gotto Islands; 71 fathoms. 
Genus Eruatra, H. & A. Adams. 
1. Ethalia candida, A. Adams, 
E. testa depresso-turbinata, alba, solida, opaca, transversim regulariter 
valde striata; anfractibus 22, planulatis; apertura circulari ; labio 
callo expanso umbilicum vix tegente ; umbilico margine crenato- 
rugoso. 
Hab. Gotto Islands; 71 fathoms. 
2. Ethalia polita, A. Adams. 
£. testa orbiculato-conoidea, alba, leevi, polita, vix opaca, spira sub- 
