224 IIELIX §. 48. 



25 mill. (Coli. Nr. 344. Spec. niax.) — Diom. 21 , alt. 20 mili. 

 (Spec. min.) 



Helix Hoconensis Soiv. in Proc Zool. Soc. 1 8 40. p. H 6. 



— — Pfr. Synib. II. p. 30. 



— — Reeve Conch. syst. II. t. 1G6. f. 27. 



— — Deless. rccueil t. 38. f. 6. 



— — Chemn. ed. II. Helix N. 294. t. 51. f. 1 —4. 



Ilabitat in provincia Iloconcnsi insulae Luzon (Cuming), 



Obs. Variat magniludine ct colore flavo , coerulescento, oiivaceo , brun- 

 neo , fasciis fulvis , .sanguineis, albis elc. Plerunique testa maculis saturaliori- 

 bus subtiliter conspersa. — Conf. Sow. 1. c. , ubi 1 8 varietates enumerantur. 



589. H. orbitula Sowerby. 



T. imperforala, ovato-globosa, crassiuscula, laevis, alba, basi 

 fusco-Iutescens, fasciis rufis et viridibus varie ornata; anfr. 4 '/2 — 

 5 convexiusculi; sutura distincta, crenulata, alba; columella lata, 

 alba, subarcuata; apertura lunato-rotundata, intusalba; perist. 

 simplex, lale expansum. — ^ R. a. = 5 : 7. — Diam. maj. 26, min. 

 23, alt. 24 mill. (ColL Nr. 345.) 



Helix orhitula Soiv. in Proc. Zool. Soc. 1840. p. 103. 



— — Pfr. Symb. II. p. 35. 



— — Chemn. ed. IL Helix N. 288. t. 50. L 7. 8. 



— chlorogrammica Val. in Mus. Paris. 

 Habitat in insula Mindoro Philippinarum (Cuming). 



Obs. Varial spira magis minusvo elevata , fasciis viridibus solitariis vel 

 anfractum ultimum fere omnino tegentibus. 



590. H. Montfortiana PfV. 



T. imperforata, turbinata , crassa, ponderosa, nigricanti-rnfa, 

 epidermide fusco-cinerca, hydrophana induta; spira conoidea, 

 apice violaceo-purpurascens , nuda , nitida, obtusa; anfr. ^y^ vix 

 convexiusculi , ultimus angulatus: angulo antice evanescente; co- 

 lumella declivis, callosa, alba, basi subdenlata; apertura subte- 

 tragona, intus nitide alba; perist. breviter redexum, nigro-fusco- 

 limbatum. — Diam. maj. 31 , min. 27, alt. 22 mill. (Mus. Cuming.) 



Helix Montfortiana Pfr. in Proc. Zool. Soc. 1846. p. 38. 

 Habitat in insulis Philippinis. 



Obs. Characteribus intermedia inter H. Bruguiereanam Pfr. et carbona- 

 riam Sow. 



591. H. Bruguiereana Pfr. 



T. imperforala, turbinato-globosa , solida, nigro-castanea, 

 epidermide hydrophana, fusca, strigata, sursum pallescente ob- 

 ducta; spira conoidea, apice obtusa, purpurea, nitida; anfr. 5 con- 

 vexiusculi, ullimus basi vix convexus, denudatus; columella 



