146 
genus so much of its beauty. The largest size yet discovered is given 
in the measurement. 
46. ACHATINELLA GRANA (Pl. XXIII. fig. 46). A. testa elongato- 
conica, cornea; anfractibus 6, ventricosis, submarginatis ; aper- 
tura oblongo-ovata ; labro subincrassato ; sutura valde impressa ; 
columella plica albida, in apertura profunde immersa munita. 
Long. a3 lat. ZS poll. 
Hab. Mani. 
Shell elongately conic, corneous ; whorls 6, rounded, faintly mar- 
gined ; aperture oblong-ovate ; lip slightly thickened, white; colu- 
mella with a white plait deep in the aperture. 
47, ACHATINELLA PORCELLANA (Pl. XXIII. fig. 47). A. testa 
solidiori, conica, polita, fulgente ; anfractibus 5, rotundis, superne 
marginatis ; apertura ovata; labro expanso, margine tenui, in- 
terne incrassato ; columella brevi, tuberculari ; colore albo porcel- 
laneo, cum vitta flavo-fusca, pallida anfractum singulum circum- 
ambiente, quarum bine in anfr. ultimo. 
Long. x3 lat. poll. 
Hab. EK. Mani. 
Shell rather solid, conical, polished, shining; whorls 5, rounded, 
margined above; aperture ovate; lip expanded, thin at the margin, 
thickened within; columella short, tubercular; colour of a porcelain 
whiteness, with a light fawn-coloured band encircling each whorl, the 
last whorl having two. 
48. ACHATINELLA VENULATA (Pl. XXIII. fig. 48, 48a). A. testa 
dextrorsa, elongato-conica; anfractibus 7, convexis, superne sub- 
marginatis ; sutura bene impressa ; apertura subovata ; labro sim- 
plici, interne adaucto ; columella fortiter plicata, contorta, colore 
subroseo suffuso ; colore albido vel albido-roseo cum venis longi- 
tudinalibus viridibus vel olivaceis, ex epidermide formatis. 
Long. =; lat. 3° poll. 
3° 20? 
Hab. Kolau, Oahu. 
Shell dextral, elongately conic ; whorls 7, convex, slightly margined 
above; suture well-impressed ; aperture subovate ; lip simple, thick- 
ened within; columella strongly plicate, twisted, of a pinkish hue ; 
colour of shell white, or pinkish white, with longitudinal veins of 
green or olive-green epidermal matter. 
Var. a. Sinistral, with a deep black sutural band. 
49. ACHATINELLA MucRONATA (PI. XXIII. fig. 49). A. testa 
elongato-ovata ; anfractibus 6, ventricosis ; sutura superne sub- 
impressa, profunda ad juncturam anfr. ultimi; apertura parva, 
ovata; labro simplici; columella contoria, plicata ; anfractu ultimo 
contracto et epidermide densa fusco-nigra tecto; testa reliqua alba, 
signis mucronatis, numerosis, fuscis ornata. 
Long. 3 lat. 3 poll. 
Hab. Mani. 
