GASTEROPODA. 18] 
SHELL ovate-conic, imperforate, rather solid, smooth, shining, pale 
plum-colour, paler at tip, girdled with numerous, crowded, regularly 
spaced, white hair-lines; nacreous under the surface; whorls seven, 
slightly convex, the basal one somewhat angular; suture deep; aper- 
ture nearly circular, slightly produced outwardly ; columella smooth, 
rounded, white, with a rosy tint at base, very slightly sinuous: interior 
pearly, highly iridescent. 
Inhabits the Auckland Islands, Atlantic Ocean. 
This peculiarly coloured species has the form, thickness, and ap- 
pearance of the delicately lineated specimens of Littorina angulifera, 
like T’ capillaceus, Puiiprt, in Menke’s Zeitsch., 1848, 102. 
Figures 205, 205 a, two views of the shell. 
TROCHUS TEXTURATUS (Gould). 
Testa conica, imperforata, solida, cinerea viridi vel roseo-tincta, liris 
volventibus roseo-maculatis et laminis incrementi tenuibus clathrata : 
spira anfractibus septem, vix convexis, ultimo sub-angulato: apertura 
rotundata, anticé evoluta ; columella rotundata ; labro dechvi, acuto : 
interior margaritacea, iridescens. 
Trochus texturatus, Goutp ; Proceed. Boston Soc. Nat. Hist., ii. 90. 
March 1849. Expedition Shells, 55. 
SHELL conical, imperforate, solid, girdled with about five obtuse 
ribs on the upper, and nine on the lower whorls; colour cinereous, 
tinted green or roseate, generally faintly tessellated with pale rose 
spots on the ribs; intercostal spaces half the breadth of the ribs: 
surface having the lines of growth faintly laminated, and crossed by 
fine, revolving lines; when somewhat worn, the prominence of the 
rib becomes smooth, and the cancellated sculpture appears only in the 
interspaces ; nacreous underneath, as appears by its roseate pearly tip. 
Whorls seven, scarcely convex, the basal one obtusely angular: aper- 
ture nearly circular, somewhat effuse at base: columella rounded, 
edged with green; outer lip bevelled within; interior pearly, faintly 
greenish, scarcely iridescent. Operculum thin, horny, multispiral. 
46 
