284 ANOSTOMA. — TOMIGERUS. 



V. Anostoma Fischer. 



De generis characteribus conf. Mon. I. p. XVII. Sed aper- 

 turam dentatam (similiter ac in genere Tomigero) generi essen- 

 tialem nunc censeo, quare speciem valde anomalam, Anostoma 

 Boijsii Bens., hucusque ilH adscriptum, ab eo excludere et 

 tanquam novi generis vBoysiae» typum in viciniam generum 

 Gibbi et Pupae transferre aptius putavi. Cf. Albers Helic. p. 

 129, ubi eadem generis restrictio proponitur. Remanent in 

 genere 2 species jamdiu notae: 



1. ringens L. {Desh. in Enc. rai^th. II. p. 5i. N. ^. 



— Chemn. ed. 11. 1. 12'. f. 4 — 6. P. II. p. 3. — 

 Desh. in Fer. hist. I. p. 398. N. I . — Alb. Helic. 



p. 129. — Desh. Trait6 61em. t. 83. f. 1. 2.) . Mon. I. p. i. 



p. Minus: diam. maj. 30, min. 22, alt. 18 mili. (Mus. Cuming.) 

 Anostoma ringens Chemn. ed. II. Helix t. 103. f. 31 — 33. 



2. globulosum Lam. ( Coil. 1 . — Desh. in Enc. m6th. 



II. p. 52. N. 2. — Chemn. ed. nov. II. p. 5. 



— Desh. in Fer. hist. I. p. 399. N. 2. — Alb. 



Helic. p. 129.) Mon. 1. p. 2. 



VI. Toiiiigerus Spix. 



Genus in Monogr. I. p. XVII adumbralum, accedentibus 

 speciebus 2 nunc cognitis bene confirmatum. Cf. Albers Helic. 

 p. 131. — Species 4 vidi sequentes: 



1. T. gibberulus (Helix) Burrow. 



T. subarcuato-rimata, semiconica , solidiuscula, sublaevi- 

 gata, albida, fasciis latis fuscis ornata; spira conica, apice ni- 

 gricans; anfr. o, supremi convexiusculi, ultimus spira mnjor, 

 postice angulosus; facie aperturali complanatus, basi carinatus, 

 antice ascendens, pone aperturam scrobiculatus; apertura axi 

 parallela, subtriangularis, dextrorsum subeffusfi, violaceo-ma- 

 culata, lamellis 7 instructa: 2 in pariete aperturali (superiore 

 obliqua, longa, serrata, altera transversa), 3 in margine ba- 

 sali, interstitiis nigro-violaceis, 2 in margine dextro (superiore 

 maxima, longa, altera compressa, illi superposita); perist. sim- 

 plex, album, late expansum, basi reflexum. — Diam. maj. 20, 

 min. 11, alt. 13 — 14 mill. Apert. (c. perist.) 8V2 mill. alt., 

 margo perist. basalis 11 mill. long. (Mus. Cuming.) 



Helix gibberida Burr. Elem. of Conch. p. 188. t. 27. f. 3. Benel 



