fa, 1983 
37 
GENA AuRICULA, Lamarck. 
Hab. Eastern Seas; Red Sea; Celebes. (Mus. Cuming.) 
Stomatella auricula, Lamk. Hist. An. s. Vert. vi. p. 210. Patella 
lutea, Linn. 
GENA NIGRA, Quoy and Gaimard. 
Hab. Eastern Seas. (Mus. Cuming.) 
Stomatella nigra, Quoy § Gaimard, Voy. del Astr. v. 3. pl. 66 bis, 
fig. 10-12. 
Gena pPLUMBEA, Adams. G. testd haliotided, ovato-oblongd, 
dorso latere dextro gibbosd, sinistro planulatd, plumbed, decus- 
saté totd striatd; spird prominuld, anfractibus rotundatis, 
anfractu ultimo ad suturam gibboso ; aperturd posticé subcana- 
liculatd, labro in medio flexuoso. 
Hab. Java. 
Shell gibbous on the right side, flattened on the left, lead-coloured, 
decussately striated over the back; spire rather prominent, the 
whorls rounded, last whorl gibbous at the suture ; aperture slightly 
channeled posteriorly, outer lip flexuous in the middle. 
Hab. Java. (Mus. Cuming.) 
Gena srricosa, Adams. G. testd haliotided, ovato-oblongd, 
dorso subplanatd, totd striatd, striis irregularibus subconfertis, 
olivaced lilaceo alboque varid, fasciis subfuscis, pallidis alter- 
nantibus longitudinaliter ornatd, labro haud sinuoso. 
Hab. 2 
Shell rather depressed, the back equally convex, striated all over, 
olivaceous varied with white and lilac, marked with alternate light 
and dark bands, the light bands sometimes articulated; spire de- 
pressed, outer lip slightly sinuous. 
Hab. ? (Mus. Cuming.) 
GENA STRIATULA, Adams. G. testd haliotided, ovato-oblongd, 
dorso planiusculd, totd striatd, striis profundis subdistantibus, 
rubrd, flaveolo aurantiaco fuscoque varie pictd ; spird prominuld, 
nunquam subdistortd ; labro valde flexuoso. 
Hab. Australia; et in insulis Philippinis. 
Shell very elongated, slightly convex, strongly striated all over the 
back, red varied with orange, light yellow and brown ; spire elevated, 
often distorted ; outer lip very flexuous. 
Hab. Calapan, island of Mindoro, on small stones, 9 fathoms; H. C. 
Swan River, Lieut. Preston; Australia. (Mus. Cuming.) 
Gena vari, Adams. G. testd haliotided, ovato-oblongd, politd, 
dorso equaliter convexd, latere sinistro striatd ; luteo, rubro 
alboque variegatd ; spird prominuld, erectd, acuminata. 
Hab. Australia; et in insulis Philippinis. 
Shell smooth, polished, back equally rounded, striated on the left 
side, varied with yellow, red and white ; spire rather elevated, lateral, 
upright and pointed. 
Hab. Calapan, island of Mindoro, on small stones, 9 fathoms; H.C. 
