162 
MOLLUSCA. 
Helix. Species from Australia and adjacent islands ; — 
Hadra (Alb.). Under-surface of the foot with a distinct middle area ; 
genitals simple ; in some species, a flagellum ; kidney long ; bursa copu- 
latrix attached to the oviduct; jaw ribbed. H. hipartita, gilherti, 
pachystyla, prunum^ appendiculata^ lasalis^ QTayi^ lessoni^ and cerata 
examined by Semper, Reis. Arch. Philippin. iii. pp. 169-161 ; genital 
organs, pi xiv. flgs. 2, 11 & 12 ; radula, pi, xvii. figs. 16, 16, 21, 22 & 24. 
Helix appendiculata (Pfr.) described ; Tapparone-Canefri, Mai. viagg. 
Magenta, p. 90. 
H. coxi (Crosse), hlomfieldi (Cox), and macleayi (Cox) ; id. 1. c. pp. 92 
& 93, pis. ii. figs. 7 & 6, iii. fig. 1 (all from Australia). 
H. isis and lais (Pfr.) ; Pfeiffer, Novitat. iv. pi. cxxvi. figs. 1-5, 6 & 7. 
H. richardsoni and millestriata, spp. nn., E. Smith, Moll. Voy. 
Ereb. Terr. p. 2, pi, iv. figs. 14 & 6, Depuch Island, W. Australia. 
II. hipartita (F^r.), cyclostomata (Guill.), nigrilabris (Martens), strangii 
(Pfr.), and leptogramma (Pfr.), all from AustraUa, figured ; id. 1. c. pi. iv. 
figs. 11, 13, 16, 17, & 18. 
H. calliope, alleryana, noumeensis, and minutula (Crosse), from New 
Caledonia ; Crosse, J. de Conch, xxii. pp. 97-101, pis. ii. figs. 1 & 2, iii. 
figs. 6 <4 6. H. bazinif prevostiana, corymbus, taslii, vimontiana, spp. nn., 
and costulifera (Pfr.) var., New Caledonia, id. 1. c. pp. 104-108, 180 & 181, 
388-390, the first four figured, pis. iv. figs. 1 & 2, xii. figs. 3 & 4. H. 
saburra, sp. n., Gassies, tom. cit. p. 207, New Caledonia. H. rufotincta, 
and inculta, spp. nn., id. 1. c. pp. 376 & 377, New Caledonia. 
H. hivi, Tfiarice, coma, busbii, and dunnice (Gray) from New Zealand ; E. 
Smith, Moll. Voy. Ereb. & Terr. pi. i. figs. 1-4, & 7. 
Helix. North Amerioau Species 
H. bracteola (F4r.), from Martinique, = vortex (Pfr.) ; Bland, Ann. 
Lyc. N. York, xi. p. 79. 
H. {Strobila) hubbardi (Brown) ,= vendryesiana (Gloyne), from 
Georgia, Tex^,s, and Jamaica ; id. 1. c. p. 86. 
H. {Folygyra) plagioglossa (Pfr.)> kidney long, genital organs simple, 
jaw ribbed'; Semper, Reis. Arch. Philippin. iii. p. 163. H. (P.) troos- 
. tiana (Lea), radula, jaw, and genital organs ; Binney, Ann. Lyc. N. York, 
xi. p. 28, pi. V. figs. 3 & 6. > H. (F.) uvuUfera (Shuttl.), jaw and radula ; 
Bland. & Binney, op. cit. x. p. 339. II. (F.) texana (Moric.), jaw and 
radula; Binney, t*. Ac. Philad. 1874, p. 60, pl:”viii. fig. 1. 
H. (Stenotrema) edwardsi (Bland), jaw and radula ; Binney, 1. c. p. 49. 
^ H. (Triodopsis) obstricta (Say), genital organs; id. Aim. Lyc. N. York, 
xi. p. 28.^ H. (T.) gppressa (Say), genital organs; id. P. Ac. Philad. 
1874, p‘ 40, pi. iv. fig. 4. H. (T.) clausa (Say), jaw and radula; id. 1. c. 
p. 49 ; genital organs, id. Ann. Lyc. N. York, xi. p. 29, pi. v. fig. 4. 
H. {Mesodori) albilabris and thyreoides (Say), kidney long, genital 
organs simple, jaw ribbed, lateral teeth nearly subulate ; Semper, Reis. 
Arch. Philippin. iii. p. 162. H. (if.) wheatleyi (Bland) and clarki (Lea), 
jaw, radula, and genital organs ; Binney, Ann. Lyc.N. York, xi. pp. 28 & 29, 
of the first, figured pi. vi] figs. 1 & 6. H. (if.) pennsylvanica (Green), 
