30 
produced posteriorly, operculigerous, lateral membrane very wide, 
the circumference regularly fimbriated. Operculum orbicular, thin, 
horny, multispiral. Shell spiral, suborbicular, depressed, transversely 
ribbed or sulciferous ; spire more or less elevated, whorls rounded ; 
aperture large, wider than long, pearly within. 
STOMATELLA IMBRICATA, Lamarck. 
Hab. Torres Straits; Jukes. (Mus. Cuming.) 
Stomatella imbricata, Lamk. Ency. Méth. p. 450. f. 2 ; Hist. Nat. 
An. s. Vert. vol. vi. p. 209. 
STOMATELLA CANCELLATA, Krauss. 
Hab. Table Bay, Cape of Good Hope. (Mus. Cuming.) 
Stomatella cancellata, Krauss, Sudafrican Moll. tab. 5. fig. 26. 
STOMATELLA COSTELLATA, Adams. S. testd suborbiculatd, con- 
vexo-depressd, albidd, imperforatd, costellis transversis obtusis 
striisque elevatis longitudinalibus decussatd ; spird subpromi- 
nuld ; aperturd magnd, obliqud, oblongd. 
Hab. 2 
Shell suborbicular, convexly depressed, whitish, imperforate, with 
obtuse transverse ribs and decussating longitudinal elevated stric ; 
spire rather prominent ; aperture large, oblique, oblong. 
Hab. ? (Mus. Metcalf.) 
STOMATELLA ARTICULATA, Adams. S. testd suborbiculari, im- 
perforatd, convexd, tenui, grised, costulis transversis nigro-arti- 
culatis, interstitiis lineis longitudinalibus elevatis ornatd ; spird 
prominuld, anfractibus rotundatis ; apertura oblongo-ovali, lon- 
giore quam latiore. 
Hab. In insulis Pacificis. 
Shell suborbicular, imperforate, convex, thin, grey, ornamented 
with transverse ribs articulated with black, the interstices with longi- 
tudinal elevated lines ; spire rather prominent, whorls rounded ; aper- 
ture oblong-oval. 
Hab. Australia; Lord Hood’s Island, South Seas, on the pearl 
oyster; H.C. (Mus. Cuming.) 
STOMATELLA SULCIFERA, Lamarck. 
Hab. Philippines, Catbalonga ; island of Samar, under stones ; isle 
of Ticao, on the reefs, low water; H.C. (Mus. Cuming.) 
Stomatella sulcifera, Lamk. Hist. Nat. An. s. Vert. p. 210. 
STOMATELLA MACULATA, Quoy and Gaimard. 
Hab. Catanuan, province of Tayabas, island of Luzon, under stones, 
low water; H.C. (Mus. Cuming.) 
STOMATELLA MONILIFERA, Adams. _ S. festa suborbiculari, con- 
vexo-depressd, imperforatd, albidd, rufo-punctatd, costellis moni- 
liferis confertis transversis ornatd ; aperturd obliqud, subcir- 
culari. 
Hab. 2 
