230 MR, A, ADAMS ON NEW SPECIES OF Limopsis. [Nov. 11, 
4, Limopsis crenata, A, Adams. 
L. testa oblique ovata, longiore quam lata, convexa, oblonga, 
latere antico rotundato, postico declivi, longitudinaliter radia- 
tim substriata, concentrice sulcata, liris concentricis subdistan- 
tibus crenatis, epidermide dense pilosa, pilis in fimbriis concen- 
tricis dispositis, obtecta, intus alba strigosa, margine ventrali 
intus crenulato. 
Hab. Uraga, 21 fathoms; Satanomosaki, 55 fathoms. 
Most like Z. odliqua in form, but less proloiigéed fromi the beaks 
to the ventral mafgii; it is also more gibbous, and the surface of 
the valves is furnished with prominent concentric crenate lire. 
/ 5. Limopsts rorsxauir, A. Adams. 
L. testa subtrigonali, solida, orbiculata, subequilaterali, tumida, 
latere postico declivi, rufescente, costellis radiantibus striisque 
concentricis elevatis eancellata, costellis minoribus et majori- 
bus alternantibus, intus pallide rufa, linea cardinis castaneo 
tincta, margine ventrali intus levi. 
Hab. O-Sima; Takano-Sima; on the sands, dead. 
This is a strong, subtrigonal, cancellated species, most nearly re- 
sembling LZ. japonica; but it is more triangular in outline, the 
sculpture is much coarser, and the hinge-margin is narrower and 
more arcuated. 
6. Limopsis puitipri1, A. Adams. 
L. testa viz orbiculari, subobliqua, gibba, subequilaterali, pallide 
Jusca, costellis radiantibus equalibus confertis lirisque crenu- 
latis concentricis reticulata, latere postico rotundato, epidermide 
Susco-pilosa partim obtecta. 
Hab. @ 
This is a gibbous, somewhat oblique species, neatly reticulated 
with radiating riblets and elevated concentric lines. It is more gib- 
bous than any of the other species, and the surface of the valves is 
partly covered with a pale brown epidermis. 
7. Limorsis apysstcoua, A. Adams. 
L. testa valde obliqua, inequilaterali, gibba, lineis elevatis radi- 
antibus et lirulis concentricis crenulatis decussata, latere antico 
brevi, rotundato, postico longiore declivi non dilatato, epider- 
mide fusca pilosa, pilis in fimbriis dispositis, obtecta. 
Hab. Cape of Good Hope, 136 fathoms. 
This is the species actually dredged from 136 fathoms, off the 
Cape, during the voyage of H. M.S.‘Samarang.’ The shell figured 
as Pectunculus belcheri (Moll. Voy. Sam. pl. 22. f. 5), a much 
larger and more compressed species, was, I believe, obtained from the 
Korean Islands, and most nearly resembles L. cumingi, which, how- 
ever, has not the ventral margin internally crenate. 
&. Limopsis MACGILLIVRAY1, A. Adams. 
L. testa oblique ovata, inequilaterali, gibbosula, albida, costellis 
