124 
REPORT ON ZOOLOGY, MDCCCXLII : 
sertiana, Warrior Island (Straits of Torres) ; tritoniensis ; New Guinea ; 
succiiiulata, Guaham ; ternatana, Ternate ; crouanii, Hamoa ; albula, 
Ternate; Valenciennesii, habitat unknown; a^proximata, Hogoleu and 
Ternate, arrowensis, Arrow Islands ; hyalina, Salomon Islands ; con- 
centrica, Vavao ; aucTdandica, Auckland Islands ; oceanica, Tahiti ; 
Blainvillii, Arrow Islands ; torticollis. New Guinea ; Kiesneri, New 
Guinea ; purpurostoma, New Guinea ; quadrifasciata, Ternate ; gut- 
tata, Ceram ; cyclostomata, Warrior Islands. 
Helix Guerini, Pfeiffer (Rev. Zool. 1842, p. 304) ; is somewhat more 
depressed than H. trochiformis, Fer. ; brown, wrinkled lengthways; at 
the keel of the last whorl, and at the base of the others, closely fringed 
with hairs : Plateau of the Nilgherries. 
Helix zeus, Jonas, ib. ; umbilicated, circular, with oblique wrinkles 
and elevated spiral streaks ; the last whorl angled ; superiorly brown, 
with yellow zigzag lines ; inferiorly has a broad brown band : Philip- 
pines= 
Pfeiffer (Proc. Zool. Soc. 1842, p. 85) describes sixteen species of 
Helix, which were collected by Cuming on the Philippines, and have 
been named by Sowerby, Broderip, and himself. And at p. 150 of the 
same volume, he gives descriptions of six additional species from the 
same islands. 
Helix Valtoni, Lovell Reeve (Proc. Zool. Soc. 1842, p. 49) ; ovate, 
depressed ; dark ruddy-brown with streaks lengthways ; aperture with a 
black lip : Ceylon. It is figured in the Conch. Syst., and is especially 
characterized by its curiously speckled epidermis. 
Helix ravida, Benson (Ann. ix. p. 486), sub-globular, umbilicated, with 
six whorls, somewhat plaited transversely ; Chusan. 
H. naninoides, id. ib. ; shell sub-discoidal, slightly striated in a ra- 
diating manner above, and marked below with distant smooth strim : 
habitat Singapore ; scarce at Chusan 
In the first number of Philippi’s descriptions and plates of new shells, 
the fourth plate is devoted to the genus Helix. Most of the species 
have been described by v. d. Busch, and are already contained in 
Pfeiffer’s Symbolee, No. 2, viz., — H. Rumphii, gemina, hataviana, 
inquinata, rotatoria: all from Java. Bensoni, from Bengal. The 
H. Jihula, Sow., is also figured ; and H. conus, Phil. ; shell conical ; 
keel sharp ; chestnut-brown, with yellow sutures : Java. 
Helix tennesseensis. Lea (Proc. Amer. Phil. Soc. 1841, p. 31) ; above 
plano-convex ; convex beneath ; yeUow, obliquely striped ; umbilicated ; 
labrum inw'ardly concealed : Cumberland Mountains. H. mobiliana, 
id. ib. p. 82 ; globular ; reddish-horn colour, shining ; umbilicated ; aper- 
ture lunated, labrum reflexed : Mobile, Alab, H. minutissima, id. ib. ; 
globular; brownish-horn coloured; umbilicated; four whorls; aperture 
roundish ; labrum sharp ; Cincinnati. 
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