from the Sea of Japan. . - 229 
3. Crenella cornea, A. Adams. 
C. testa oblonga, obliqua, tumida, subpellucida, cornea, tota radiatim 
striata, striis elevatis confertis, lineis incrementi concentricis in- 
' structa; latere antico breviore rotundato, postico longiore suban- 
gulato; margine ventrali crenulato. 
Hab. Korea Strait ; 46 fathoms. 
A thin, horn-coloured, semipellucid species, entirely radiately 
striated, and of an oblong form, with the greatest diameter from 
the beak to the ventral margin. 
4. Crenella sculptilis, A. Adams. 
C. testa oblonga, crassiuscula, albida, lineis concentricis validis in- 
structa, radiatim costellata, costellis planis leevibus, interstitiis 
granulis moniliformibus concinne sculptis; marginibus ventrali et 
cardinali crenulatis. 
Hab. Chosan Harbour; 6 fathoms. 
The beak in this prettily sculptured species is nearly terminal, 
and the shell is ovate-oblong, the greatest diameter being from 
the umbo to the ventral margin. 
5. Crenella crocea, A. Adams. 
C. testa transversim oblonga, obliqua, subrhomboidea, nitida, cornea, 
sulculis radiantibus confertis lmeisque elevatis concentricis tota 
decussata ; latere antico breviore, postico longiore rotundato ; mar- 
ginibus cardinali et ventrali regulariter crenulatis. 
Hab. Tsu-Sima; 30 fathoms. . 
A radiately sulcate and decussate, shining, saffron-coloured 
species, with the entire margin, cardinal and ventral, conspi- 
cuously crenate. 
6. Crenella casta, A. Adams. 
C. testa oblonga, obliqua, tumida, lactea, nitida, radiatim striata, 
lineis incrementi concentricis impressa, fasciis duabus pallide 
carneolis ornata; margine valvarum crenulato; intus vivide mar- 
garitacea. 
Hab. Mino-Sima; 63 fathoms. 
A very beautiful, shining, milk-white species, finely radiated 
throughout, and adorned with two crescentic pinkish bands, 
Genus Moprotarta, Beck. 
Modiolaria pusio, A. Adams. 
M. testa transversim oblonga, obliqua, parva, tenui, fusca, latere 
antico breviore, postico rotundato, costellis radiantibus utrinque 
