62 ACHATINIDA. 
LEPTINARIA, Beck, 1837. Shell oval, pellucid ; columellar lip 
doubly toothed; outer lip smooth, sharp. LZ. Cumingiana, Pfr. 
(c, 92). 16 sp. West Indies, Central, and Northern South 
America. 
FrrussactA, Risso, 1826. 
Syn.—Pegia and Vediantius, Risso, 1826. Strobilus, Ads., 
1855. 
Distr.—62 sp. Mediterranean region, Canaries, Malaysia, 
etc. Fossil. Eocene. 
Shell small, ovately fusiform, imperforate, polished, trans- 
parent, columella plicate, subtruncate; outer lipsimple. Jaw thin, 
numerously plicate, margins crenulated. 
Folliculus, Agassiz, 1837. (Huferussacia, Bourg.,1870.) Typ- 
ical group. . Gronoviana, Risso (c, 93). F. Vescot, Bourg. 
(c, 94). 387 sp. Southern Europe, N. Africa, Madeira. 
Pseudostreptostyla, Nevill. Pillar-lip resembling that of Spir- 
axis. Lf. abnormits, Nevill. So. France. 
Cylichnidia, Lowe, 1854. Shell oval-fusiform, columella uni- 
plicate; outer lip thin. C. ovuliformis, Lowe (c, 95). 2 sp. 
Madeira. 
ornatellinoides, Pfr., 1877. Resembling Tornatellina. C. 
achatinoides, Pfr. 8sp. N. Africa, Syria, Gambier Isles. . 
Pseudazeca, Pfr., 1877. Resembling Azeca. C. procerula, 
Mor. 5sp. Algiers. 
Cryptazeca, Folin, 1877. Shell like Cionella, with one colu- 
mellar tooth; hinder end of the foot truncate, with several 
unicellular glands; mantle not extended beyond the shell. C. 
monodonta, Folin. Bayonne. 
Lowea, Watson. Mantle thinly spread over the outside of the 
shell, and extending like a tongue backwards behind the poste- 
rior corner of the aperture ; tail abruptly truncate, with a mucous 
gland. L. melampoides, Watson. Madeira. 
AZECA, Leach, 1818. (Agraulina, Bourg., 1858.) Shell small, 
oval-elliptical, corneous, smooth, polished; aperture half the total 
length, oval or oblong, with numerous teeth; columella com- 
pressed, callous, truncate-dentate at the base ; peristome simple, 
obtuse, labiate within, the extremities usually united by a 
tubercled callus. 17 sp. Europe, Algiers, Canaries. 
Azecastrum, Bourg., 1858. Typical group. A. tridens, Pult. 
(c; 96). .2 sp. “Burope. 
Alsobia, Bourg., 1858. A. Paroliniana, Webb and Bertholet. 
Canaries. 
Hypnophila, Bourg., 1858. A. Pupeformis, Cantraine. 9 sp. 
Europe, Algiers. 
Fusillus, Lowe, 1854. A. triticea, Lowe. 3sp. Madeira.. 
Amphorella, Lowe, 1854. A. tornatellina, Lowe. 3 sp. 
Madeira. 
