192 IIELIX §. 54 



Helix aegrotus Reeve Conch. ic. N. 95. i. 2 2. 

 — aegrota Chemn. cd. II. Holi.x N. 1004. t. 152. f. 3. 

 Uabitat in insulis Fhilippinis. 



Obs. Differt tib Helicis Albaiensis var. iinicolore: anfr. iiltinio an- 

 gustiore, apertnra minns obiicina, perist. breviter expanso, superne non 

 clepresso et columella. 



1052. H. egregia Dcshayes. •}• 



T. globosa, (iepressiuscula , alba, Iransversini rusco-hifa- 

 sciata; spira conico-depressa, apice obtusa; anfr. 4 convexius- 

 culi , lente crescentes, uitimus depressus, convexus, basi iin- 

 perforatus, ad peripheriani oblusissime anguhitus; aperlura 

 lunato-circularis; perist. reflexum, incrassatum, fuscum, extus 

 marginatum; columeha basi dilatata, depressa, callosa; margo 

 sinister incrassatus, brevis. — Diam. 38, alt. 28 mill. (Desh.) 

 Hellx egregia Desh. in Fer. hist. I. p. 302. N. 359. t. 102. f. 17. 18. 

 Habilat . . .? 



1053. aurata Sow. (Coll. 554. — lieeve N. 46. t. 1.3. 



— Callicochlias Alb. p. 105.) Mon. 1. p. 260. 



1054. zonulata Fer. (Coll. 555. — Chemn. ed. nov. 



I. p. 310. — Desh. 1. c. p. 138. N. 174. — Eeeve 



N. 4 00. t. 76. — Callicochlias Alh. p. 105.) . . - - - 261. 



1055. Najas Pfr. (Coll. 556. — Chemn. ed. nov. I. p. 



312. — flepueN. 484.t. 90. — Corasia j;&.p. 111.) - - -261. 



1056. H. obliquata Deshayes. •}• 



T. snbglobulosa, candidissima , tenuiter striata; spira bre- 

 vis, obtusa; anfr. 4 planiusculi, ultimus maximus, inflatus, ad 

 aperturam obliquatus et oblique deflexus, basi imperforalus; 

 apertura ovato-lunaris, in medio dilatata, postice coarctata; 

 perist. marginatum, breviter reflexum, basi callo brevi indu- 

 lum. — Diam. 27, alt. 22 mill (Desh.) 



Helix oUiquata Desh. in Fer. hisl. I. p. 219. N. 293. t. 28 A. 

 f. 3. 4. 

 Habitat . . .? 



1057. H. cxtcnsa Muller. 



T. imperforata, depresso-ovata, tenuis, vix strialula, sub 

 epidermide fugacissima lutescente alba, diaphana; spira bre- 

 vissima, convexa, obtusa; sutura profundiuscula; anfr. 4 con- 

 vexi, rapide accrescentes, ultimus ventrosus, antice descen- 

 dens; columella vix declivis, slricta, plana, superne dilatata; 

 apertura diagonalis, ampla, lunato-ovalis; perist. tenue, undi- 

 que expansum et reflexiusculum, margine dexti^o arcuatim an- 

 trorsum dilatato. — Diam. maj. 28, min. 22^2, alt. 18 mill. 

 (Mus. Guming. ) 



