HELIX. 15 



quinque convexiusculi, ultimus vix descendens, basi parum con- 

 vexus ; apertura rotundato-lunaris, intus fuscescens ; peristoma 

 acutum, intus sublabiatum, margine eolumellari breviter arcuato, 

 unidentato, dilitato, reflexo, perforationem fer tegente. 



SYNONYMS AND KEFEKENCES. 



Helix areolata, SOWERRY, Brit. Mus. 



PFEIF. in Zeitschr. f. Malak. 1845, p. 154; 



Mouog. Helic. I. 152. 

 PHILIPPI, Icon. II. 15, tab. 9, f. 4. 

 CHEMN., ed. 2, No. 226, tab. 36, f. 10-13. 



DIAM. maj. 26, min. 23 ; alt. 18 mill. 

 Hal. In Oregon and California. 



HELIX PANDORAS, FORBES. 



H. testa obtecte perforata, depresso-globosfi, tenui, rugulosa, 

 concentrice minutissim striata, anfractibus (5) supra periphe- 

 riam fuscis (vel violaceis) infra et prope peripheriam albidis fusco 

 cingulatii basi albidis ; apertura rotuudatfi intus fusca albido fas- 

 ciata, margine interne incrassato, albo ; peristoniate reflexiusculo, 

 extus albo-labiato, margine eolumellari dilatato, reflexo, umbili- 

 cum occultante. 



SYNONYMS AND REFERENCES. 



H. Pandoras, FORBES, Proc. Zool. Soc. 1850, p. 55, pi. 9, fig. 3 a, b. 

 //. damascenus, GOULD, Proc. Bost. Soc. Nat. Hist. Oct. 1856, VI. 11. 



DIAM. max. 17, min. 16 ; alt. 14 mill. 



Forbes gives the " Vicinity of the Straits of Juan del 



