NEW SPECIES OF SHELLS. 
399 
sejuncti, lineis 3 vix conspicuis fusco alboque articulatis (in anfr. post- 
penult. evanidis) spiraliter notati ; anfraetus ultimus spiram subsequans, 
rotunde convexus, zona supra griseo-fulva, media et infra fusca ; columella 
fere recta, tenuicula, intus griseo-lilacea, extus nigra ; apertura semiovalis, 
intus lilacea ; peristoma simplex, haud reflexum, vix inerassatum, nigro 
limbatum, margine columellari callo nigro late interne suffuso induto. 
Long. 70, maj. diam. 30 millim. ; apert. long. 28, maj. lat. 16 millim. 
Sab. Santiago cle Cou, Peru. 
This species, of which I have only seen a single specimen, is 
similar in form to O. Bensoni, but it has no spiral sculpture and 
the colouring consists principally of light brown zones with a 
few longitudinal streaks of brown and black ; the articulated 
painting is very slight, and is only to be seen on the upper 
whorls. 
Pectttnctjltts crebrelirattts, sp. nov. (PI. XXV. fig. 20.) 
Testa transverse ovata, crassa, subsequilateralis, albida, fusco hie illic 
sparsim maculata et fasciata, costis circ. 30, parum elevatis, et liris 
numerosissimis angustissimis radiata, striis concentricis cancellata, minu- 
tissime granulata ; umbones prominentes ; area ligamenti recta angustius- 
cula, mediocriter longa ; latere antico rotunde arcuato, postico angulato ; 
mar go dorsalis posticus declivis ; cardine arcuato, dentibus numerosis 
divergentibus instructo, pagina interne alba, postice fusco tincta. 
Long. 35, umbonis rnarg. 31 millim. 
Sab. Moreton Bay, Australia. 
Besembling Pectunculus angulatus in form, but quite differently 
sculptured. It is densely radiately ridged throughout and 
sculptured with minute transverse striae, which give a rough 
granular character to the surface. The epidermis remaining on 
the margin of the shell is velvety. 
Crassatella japonica, sp. nov. (PI. XXV. fig. 19.) 
Testa ovato-trigona, crassa, insequilateralis, fulva, fusco radiata, con- 
centrice irregulariter striata ; umbones acuti, approximati ; area dorsalis 
utrinque mediocriter excavata ; latere antico rotunde arcuato, postico bi- 
angulato ; margo dorsalis posticus recto-declivis ; pagina interna carnea, 
impressiones musculares fulvo imbutse. 
Long. 32, umbonis marg. 2 7 millim. 
Sab. Japau. 
A very distinct species, though presenting no very prominent 
characters. The style of radiation is common to many of the 
Crassatellce, but the rough irregular striation in place of the 
ordinary concentric grooves is peculiar. 
