114 IIELIX §.40. 



707. H. xiphias Pft*. 



T. umbilicata, depressissiina, tenuiuscula, oblique striata, 

 albido-cornea, fasciis 4 angustis castaneis, medianis "2 carinae 

 acutae, albae contiguis, ornata ; spira vix elevata, vel sub- 

 immersa; sutura carina marginata; anfr. 5 convexiusculi, lente 

 accrescentes, ultimus non descendens; umbilicus y^ diametri 

 aequans; apertura perobliqua, angulalo-lunaris; perist. simplex, 

 rectum, marginibus subconvergentibus, dextro antrorsum ar- 

 cuato, columellari subincrassato, basi nodulum callosum ge- 

 rente. — Diam. maj. 18, min. ISy^, alt, 4^^ — o mill. (Mus. 

 Cuming.) 



Helix xipkias Pfr. in Proc. Zool. Soc. 1856. p. 383; Malak. Bl. 



1856. p. 243. 

 — — Pfr. Novit. conch. I. n. 2 42. t. 38. f. 6 — 9. 



^. Paullo minor, fusca, fasciis obsolelis. 



Ilabitat in insulis Admiralitatis. 



Obs. Characteribus peraffinis videtur //. entomostomae Jacq., sed 

 umbilicus latior, statura et colores diversi; nodulus subbasalis in altero 

 specimine adest, in altero (non perfecte adulto) deest. 



708. conomphala Pfr. (Proc. 1853. p. 59. — Rv. 



n. 1019. t. 156. — Videna Pfr. Vers. p. 132.) . . Mon. III. p. 635. 



709. Metoalfei Pfr. (Coll. 293. — Ch. ed. nov. II. 



p. 175. — Videna Pfr. Vers. p. 132. — H. sola- 

 rioidcs Rv. n. 127. t. 30. — Zonites Metc. [Videna] 

 Ad. Gen. p. 116.) - - - 113. 



710. Crouanii Guill. -J- - I. - 121. 



711. H. Navigatorum Pfr. 



T. mediocriter umbilicata, lentiformis, solidula, oblique 

 striata, sub epidermide nitida, purpurascenti-fusca, rubello- 

 grisea; spira convexa, obtusa; sutura marginata; anfr. 5 con- 

 vexiusculi, sensim accrescentes, ultimus non descendens, supra 

 medium compresse carinatus, basi convexior; apertura diago- 

 nalis, lunato-rotundata, subangulata; perist. rectum, obtusum, 

 marginibus subconvergentibus , supero antrorsum subdilatato, 

 basali arcuato, prope umbilicum vix dilatato, patente. — Diam. 

 maj. 18^2, min. 16, alt. 71/2 mill. (Mus. Guming.) 



Helix Navigatonim Pfr. in Proc. Zool. Soc. 1834. p. 55. 



— — Reeve Conch. ic. n. 1303. t. 187. 



— — (Videna) Pfr. Vers. p. 132. 



Ilabitat in insulis Navisatorum. 



