HELIX §. 86. 87. 261 



confertim rugoso-plicala, fusca; spira parum elevala, plane 

 conoidea; sulura impressa; anfr. 8 convexiusculi, ullimus an- 

 lice breviter descendens, peripheria subangulalus, albido-cin- 

 gulatus, subtus striatus; umbilicus latus, perspectivus, conicus; 

 apertura obliqua, parvula, lunato-subcircularis; perist. tenue, 

 carneum, subanguiatim reflexum, marginibus approximalis. — 

 Diam. maj. 25, min. 22, alt. 12 mill. '(Coll. Nr. 820.) 

 Helix ocidus Pfr in Zeitschr. f. Malak. 1849. p. U4. 



— — Chemn. ed. II. Helix N. 8 42. t. 131. f. \\ — \3. 



— Typinsana A. Adanis et Beeve Voy. Samarang. Moll. p. 



60. t. 15. f. 3. 



— — Reeve Conch. ic. N. 421. t. 80. 



P? Major, depiessa, umbilico laliore; diam. maj. 29, miu. 25, alt. 

 10 1/2 mill. (Mus. Cuming.) 

 Helix vermis Reeve Conch. ic. N. 424. t. 80. 

 Habitat in insulis Maris Chinensis. 



Obs. Peraffinis praecedenti; differt sculptura, anfractu ullinio siib- 

 angulato, peristomale tenui. 



§• 87. 



1527. circulus Pfr. (Chemn. ed. nov. I p. U7. — 



Reeve N. 440. t. 82. — Hab. Loo Choo, leste 



Mus. Brit.) Mon. I. p. 405 



1528. Lusitanica Pfr. (Coli. 821. — Chemn. ed. nov. 



I. p. 362. — Gonostoma Alb. p. 94.) - - - 411 



1529. H. bulbina Deshayes. •{• 



T. orbiculato-discoidea , late umbilicata , tenuis, fragilis, 

 corneo-flava, pellucida, tenuissime punctulata; spira depressa; 

 anfr. oY^ planulati, ultimus ad peripheriam obtusissime sub- 

 angulatus: angulo candidulo; apertura ovato-lunaris, obliqua, 

 coarctata; perist, candidum, tenue, reflexum. — Diam. 12, 

 alt. 6 mill. (Desh.) 



Helix bulhina Desh. in Fer. hist. I. p. 108. N. 147. t. 85. 

 f. 14—18. 

 Habitare dicitur in ripis fluviorum Ohio, Mississippi, Missouri. 



1530. H. gyria Roth. 



T. umbilicata, orbiculata, depressa, superne concava, tenui- 

 uscula, distincte striatula, nitidula, cornea; anfr. 7 convexi, 

 arcte convoluti, ultimus compressus, antice vix descendens, 

 basi laevior, convexus, circa umbilicum mediocrem, subcylin- 

 dricum subangulatus; apertura parum obliqua, angusta, luna- 

 ris; perist. angulatim breviter reflexum, albidum. — Diam. 

 maj. 14, min. 12, alt. 57^ mill. (Mus. Cuming.) 



