226 Mr. A. Adams on new Species of Acephalous Mollusca 
4. Myrtea lamellata, A. Adams. 
M. testa transversim oblonga, subcompressa, tenui, sordide alba, 
latere postico declinato, antico sinuoso, concentrice lamellata, lamel- 
lis tenuibus regularibus confertis crenellatis, 
Hab. Tsu-Sima; 26 fathoms. 
5, Myrtea plicatula, A, Adams, 
M. testa transversim oblonga, compressiuscula, tenui, semipellucida, 
alba, radiatim plicata, plicis regularibus et lineolis lamellosis tenui- 
bus concentricis subdistantibus decussata, latere antico superne 
elevato et dilatato. . 
Hab. Tsu-Sima; 26 fathoms: Mino-Sima; 63 fathoms. 
Thin, plicate, with distant elevated lines, and the front upper 
margin dilated. 
6. Myrtea obesula, A. Adams. - 
M. testa transyersim oblonga, alba, gibbosa, solida, lunula rufo 
tincta, radiatim costata, costis validis granulosis divergentibus, in 
medio subobsoletis, concentrice lirata, liris validis confertis regu- 
laribus. 
Hab. Tabu-Sima; 25 fathoms. 
Very gibbose, transversely oblong, strongly ribbed and gra- 
nular. : 
7. Myrtea decussata, A. Adams. 
M. testa suborbiculari, subcompressa, sordide alba, opaca, tota ra- 
diatim costellata, costellis confertis leevibus, concentrice lirata, 
liris undulatis leevibus elevatis. 
Hab. Tabu-Sima; 25 fathoms. 
Entirely finely decussated by radiating riblets and concentric 
elevated lines. 
8. Myrtea circinata, A. Adams. 
M. testa orbiculari, alba, tenui, compressa, latere antico valde sinua- 
to, latere postico flexuoso, concentrice lamellata, lamellis crassis 
regularibus confertis utrinque validioribus. 
Hab. Mino-Sima; 63 fathoms. 
A Dosinia-like species, with regular concentric lamelle. 
9. Myrtea delicatula, A. Adams. 
M, testa transversim oblonga, obliqua, subcompressa, tenui, semi- 
opaca, alba, utrinque rotundata, radiatim plicata, plicis rugulosis, 
in medio evanidis. 
Hab. Korea Strait ; 46 fathoms. 
A thin, white, obscurely plicate species. 
