106 HELIX §.21. 



473. H. remota Bcnson. 



T. umbilicata , depressa, sabdiscoidea, tenuis, sublaevi- 

 gata, paruui nitida, diaphana, corneo-lutescens; spira plani- 

 uscula; sutura iuipressa. marginata; anfr. 47^ convexiusculi, 

 ullimus latior, depressus, non descendens, basi vix convexior; 

 umbilicus mediocris, apertus; apertura parum obliqua, lale 

 lunaris; porist. simpiex, rectum, marginibus vix conniventibus, 

 columellari arcuato-deciivi, breviter pateute. — Diam. maj. 7, 

 min. 6, alt. 3 mill. (Mus. Bensou.) 



Ilelix remota Bens. in Ann. and Mag. 2 d. ser. 1851. VII. 

 p. 263. 

 — — Chemn. ed. U. Helix N. 933. t. 143. f. 3 — 5. 



Habitat in insula St. Helena. 



474. H. festinans (Zonites) Shuttlcworth. ^* 



T. mediocriter sed perspective umbilicata, plana, tenuis, 

 striatula, lutescens, parum nitida, subtus concolor; anfr. 0Y2 

 convexi, lentissime accrescentes, ultimus non descendens, vix 

 diiatatus, basi planulatus; apertura lunaris; perist. siuiplex, 

 rectum, acutum. — Diam. niaj. 5, min. ^Ya; ^l^- ^ mill. (Sh.) 



Zonites festinans Slmttleiv. Diagn. n. Moll. N. 1. p. 4. 

 Habitat in insula Palma, Canariensi (Blauner). 



475. H. juloidea Forbes. 



T. umbilicata, depressa, tenuiuscula, confertim et eleganter 

 costata, cornea ; spira piana, medio immersa; sutura impressa; 

 anfr. 4 convexi, ultimus non descendens, rotundatus; umbili- 

 cus latiusculus (fere V3 diametri aequans), perspectivus; aper- 

 tura parum obliqua, lunato-rotundata, altior quaui lata; perist. 

 simpiex, rectum , marginibus connivenlibus. — Diam. maj. 5, 

 min. 4^2) slt. vix 2 mill. (Mus. geol. Londin.) 



Helix juloidea Forbes in Voy. Rattlesnake. App. p. 379. t. 2. f. 4. 

 Habitat Port MoUe Australiae borealis (Macgillivray). 



* 



476. trochilioncidcs Orb. (Coll. 206. — Desh. in 

 F6r. hist. I. p. 85. N. 114. — Chemn. ed. nov. 

 II. p. 113. — Helix [Hyalina] trochilioides Alb. 

 p. 67.) Mon. I. p. Ud. 



477. H. perdepressa Adams. 



T. late umbiiicala, discoidea, striatula, diaphana, corneo- 

 albida; spira piana, vertice immerso; sutura profunda; anfr. 

 4V2 convexi, lente accrescentes, ultimus superne subangulatus, 

 antice descendens, basi inflatus; apertura subverticalis, rotun- 



