328 HELIX §. 61. 62. 



acuta, sursuin reflcxiuscula inslructus, subtus convexo-dcpressus; 

 apertura sublanceolata, anterius acuta^ basi rotundata, subreflexa, 

 versus umbilicuni oblique rectiuscula. — Diam. 15, alt. 1 mill. (G.) 

 Ilelix hyalina Le Guill. \n Revue zool. 1842. p. 139. Nec Fer. 

 — reflexiuscida Pfr. Symb. II. p. 98. 

 Ilabitat in insulis Salomon. 



859. H. Tritoniensis Lc Guillou. ■f' 



T. trochoidea, subumbilicata, albido-fulva, substriata; anfr. 

 5 — 6 convexiusculi , ultimus rotundatus , subtus convexus ; spira 

 conico-depressa; apertura angusta; labrum subreflexum; umbili- 

 cus minimus, punctiformis. — Diam. 9, alt. 7)2 mill. (G.) 

 Ilelix Tritoniensis Le Guill. in Revue zool. 1842. p. 138. 

 Habitat in Nova Guinea, ad Triton-Bay. 



8G0. H. albula Le Guillou. f 



T. discoidea, albula, umbilicata, acute carinata, supra conico- 

 depressa, subacuta, tenuiter striata, subtus dcpresso-convexa, 

 crebre striata; anfr. 5/2 depresso-convexi, ultimus carinatus: 

 carina rufescente ; apertura suboblonga , anterius acuta , basi de- 

 presso-recta; perist. superne subreflexum, subtus et anterius 

 lamina lata, reflexa, acuta; umbilicus profundus, infundijjulifor- 

 mis. — Diam. 27, alt. 16 mill. (G.) 



Helix albiila Le Guill. in Revue zool. 1842. p. 139. 

 Habitat in insula Ternate. 



861. H. ternatana Le Guillou. "^ 



T. orbiculato-subconoidea, um])ilicata, rufa, tenuiter striata; 

 anfr. 7 subconvexi, ultimus margine carinatus: carina albida; in- 

 fima facies depresso-convexiuscuia; umbilicus profundus, margine 

 effuso; spira conico-depressa , obtusa; apertura obliqua, subqua- 

 drata, marginata, alba, subreflexa, basi incrassata. — Diam. 22, 

 alt. 12 miU. (G.) 



Helix Ternatana Le Guill. in Revue zool. 18 42. p. 138. 

 Habitat in insula Ternate. 



§. 62. 

 862. H. Ghiesbreghti Nyst. 



T. umbilicata, orbiculato-convexa , striata, epidermide pilosa 

 induta, brunnea, zonis nigricantibus et luteis ornata; anfr. 

 5/2 convexiusculi , ultimus magnus, rotundatus, circa umbilicum 

 mediocrcm subcompressus; apertura lunato-rotundata; perist. ex- 

 pansum, albunij breviter reflexum, marginibus conniventibus. 



