38 
Acapulco, on the sands, Col. Moffat; Australia. A pretty little spe- 
cies usually confounded with G. auricula. (Mus. Cuming.) 
GENA CONCINNA, Gould. 
Hab. Sandy Island. 
Gena minima, Dufo. 
Hab. Seychelles, dredged from 6 fathoms; Dufo. 
Stomatella minima, Dufo, Ann. Sc. Nat. Oct. 1840, p. 202. Spe- 
cies unknown to me. 
GENA IRASATA, Dufo. 
Hab. Seychelles. 
Stomatella irasata, Dufo, Ann. Sc. Nat. Oct. 1840. Species un- 
known to me. 
GENA PULCHELLA, Adams. G. testd convexo-depressd, ovali, albd, 
rufo maculata, dorso convexd, totd striatd ; spird prominuld, 
anfractibus rotundatis ; aperturd magna, ovali, intus margari- 
taced, iridescente. 
Hab. 2 
Shell convexly depressed, oval, white, with large rufous spots ; 
back convex, striated all over ; spire rather prominent, whorls round- 
ed; aperture large, oval, pearly within. 
Hab. ? (Mus. Metcalf.) 
GENA LINTRICULA, Adams. G. testd haliotided, oblongd, dorso 
convexd, totd tenuissimeé striatd, tenui, fragili, carneold, rubro 
maculatd ; spird subterminalj, minima, ad latus decumbente ; 
aperturd apertd, valde elongatd. 
Hab. in insulis Philippinis. 
Shell elongated, regularly convex, entirely striated, thin, fragile, 
pink, with darker spotted and articulated lines; spire nearly poste- 
rior, slightly elevated ; aperture elongated anteriorly, dilated. 
Hab. Calapan, island of Mindoro, on smooth stones, 9 fathoms ; 
H.C. (Mus. Cuming.) 
GENA ASPERULATA, Adams. G. testd haliotided, dorso convecd, 
rufo-fuscd cinguld albd latd longitudinali ornatd, lines elevatis 
subconfertis, striisque longitudinalibus obliquis decussatd; spird 
posticd, subprominuld, albd ; aperturd elongatd, ovali. 
Hab. ? 
Shell ear-shaped, back convex, red-brown with a broad white lon- 
gitudinal band, decussated with transverse raised lines and oblique 
longitudinal elevated strize ; spire posterior, slightly prominent ; aper- 
ture elongated, oval. 
Hab. ? (Mus. Metcalf.) 
GrENA NEBULOSA, Adams. G. testd haliotided, ovato-oblongd, 
dorso totd striatd, albd rufo-fuseo nebulosd ; spird prominuld, 
anfractibus angulatis; aperturd elongatd, ovali; columella callo 
crasso rimam umbilicalem obtegente. 
Hab. Australia. 
