HELIX §. 17. 81 



§. 17. 

 318. H. distincta Pfr. 



T. umbilicata, subturbinato-semiglobosa , solidiuscula, stria- 

 tula, superne subtiliter malleato-impressa, fulvo-carnea ; spira 

 late conoidea, obtusiuscula; anfr. Sy^ convexiusculi, ultimus 

 medio albozonatus, antice vix descendens, basi convexus, circa 

 umbilicum angustum, pervium subcomprossus, albus; apertura 

 parum obliqua, lunato-rotundata; perist. simplex, obtusum, 

 margine columellari subincrassato, superne in laminam me- 

 diocrem reflexo. — Diam. maj. 56, min. 49, alt. 32 mill. 

 (Mus. Cuming.) 



Helix distincta Pfr. in Zeitschr. f. Malak. 1850. p. 69. 

 — — Chemn. ed. II. Helix N. 868. t. 134. f. \. 2. 



Habitat in insulis Moluccis. 



Obs. Affinis H. monozonaU Lam., et H. ClairvUliae Fer., a qiia 

 facile distinguitur umbilico aperto. 



319. Humphreysiana Lea. (Coll. UT. — Chemn. 



ed. nov. I. p. 201. — Desh. in Fer. hist. I. p. 



183. N. 248. t. 89. f. 7. — Nanina [Hemiplecta] 

 Humphr. Alb. p. 60. — Helix gemina v. d. Busch , 

 Pfr. Monogr. I. p. 43.) Mon. I. p. 43. 



320. Wlonrovia Rang;. {Chemn. ed. II. Helix N. 879. 



t. 136. f 3. 6.) - _ _ S5. 



Obs. Nonne status juvenilis Streptaxis nobilis? 



321. H. leucorhaphe Pfr. 



T. anguste umbilicata, depresso-lurbinata, subtilissimc 

 striatula, diaphana, luteo-cornea, fascia angusta, cretacea ad 

 suturam impressam ornata ; spira subturbinata, apice obtusius- 

 cula; anfr. 6 planiusculi, ultimus convexior, non descendens, 

 basi subplanatus; apertura vix obliqua, lunaris; perist. sim- 

 plex, rectum, margine columellari reflexiusculo. — Diam. maj. 

 10, min. 9, alt. 6 mill. (Mus. Cuming.) 



Helix leucorhaphe Pfr. in Proc. Zool. Soc. iSoO. 

 Habitat in insula Haiti (Salle). 



322. H. perplicata Benson. 



T. anguste umbilicata, conoideo-semiglobosa, lenuis, cor- 

 nea, subdiaphana, utrinque oblique plicata, plicis subdistanti- 

 bus, interstitiis longitudinaliter striatis; spira elevatiuscuia, sub- 

 conoidea, apice laevi, acutiusculo, lutescente; sutura impressa; 

 anfr. 5 — Sy^ convexiusculi , lente crescontes, ultimus leviter 

 depressus, non descendens, subtus convexior; apertura rolun- 

 dato-Iunata, vix obliqua; perist. simplex, acutum, margine 

 HI. 6 



