134 
11. ACHATINELLA TURGIDA (Pl. XXII. fig. 10, 10a). A. testa 
ventricosa, apice acuminato, sinistrorsa vel dextrorsa, levi, po- 
lita; anfr. 4 graduatim, 2 ultimis rapide increscentibus ; sutura 
subimpressa, infra depressione lineari; apertura subovata ; colu- 
mella brevi, in tuberculum conicum, in aperturam projicientem ter- 
minante ; labro exteriori simplici, interne incrassato, sicut tuber- 
culo subroseo vel fusco tincto’; faucibus albis ; colore variante, 
albo, flavo vel nigro, lineis ziczac longitudinalibus, vittis trans- 
versis vel maculis ornato. 
11 
Long. a3 lat. 5 poll. 
Hab. Ewa, Oahu. 
Shell ventricose, pointed at the apex, sinistral or dextral, smooth, 
polished, gradually enlarging for four turns and then very rapidly, 
the last two forming most of the shell; suture slightly impressed, 
beneath which revolves a linear depression ; aperture subovate ; colu- 
mella short, terminating in a strong conical tubercle projecting into 
the aperture; outer lip simple, thickened within, slightly tinged with 
pink or brown ; tubercle the same ; fauces white ; colouring extremely 
various, ground white, yellow or black, with (or without) longitudinal 
zigzag lines, transverse bands or blotches covering the surface. 
Approaches the A. ¢ristis of Férussae found at Waianoe. 
12. ACHATINELLA CYLINDRICA (Pl. XXII. fig. 11). A. testa 
dextrorsa, elongato-cylindrica, pyramidis instar ad apicem decur- 
rente ; anfractibus 7, subrotundis ; apertura oblongo-ovata ; colu- 
mella in dentem flecuosum terminante ; teste superficie ad longi- 
tudinem fortiter striata, subfusca, vittis numerosis fuscis, angustis 
circumdata. 
6 
Long. a3 lat. = poll. 
Hab. Waianoe, Oahu. 
Shell dextral, elongately cylindrical, tapering to a point at the 
summit ; whorls 7, slightly rounded ; suture moderate ; aperture ob- 
long-ovate ; columella terminating in a flexuous tooth; surface of 
shell longitudinally strongly striate, of a light horn colour, encircled 
by numerous narrow brown bands. 
This species, with the following, are found, like their nearest ana- 
logues, on the ground ; viz. 4. porphyrea and spirizona, which latter 
species, by almost insensible gradations, passes into the A. turritella, 
a shell apparently of quite a different type. 
13. AcHaTINELLA casta (Pl. XXII. fig. 12). A. testa conico- 
elongata, solida, polita, nitida, dextrorsa vel sinistrorsa; anfracti- 
bus 6, rotundis, supra marginatis ; apertura subovata, breviuscula ; 
labro simplici, interne incrassato ; columella brevi, cum dente for- 
titer plicato; colore albido vel luteo, vittis transversis variis ni- 
gris, fuscis, roseis vel albidis diverse dispositis. 
Long. =; lat. ee poll. 
Hab. Ewa, Oahu. 
