HELIX §. 108. 257 



1643. Stcursiana Shuttl. f [Helicostyla Sleiirs. [Oxy- 



chona] Ad. Gen. p. 194.) Mon.III. p. 1 79. 



1644. H. lenta Pfr. 



T. subaperte perforata, trochiformis, tenuiuscula, levissime 

 striatula, griseo-carnea, vel rubello-cornea, fasciis albis opacis 

 ornata; spira elongato-conica, acutiuscula; anfr. Ty^ planiusculi, 

 lente accrescentes, ultimus antice vix descendens, subangulatus, 

 basi planus, radiato-striatus; apertura perobliqua, subtrigono- 

 ovalis, intus concolor; perist. tenue, late expansum et reflexius- 

 culum, violaceo-nigrum, margine dextro leviter arcuato, sub- 

 repando, basali stricto, columellari fornicatira reflexo. — Diam. 

 maj. 29, min. 24, alt. 29 mill. (Coll. Nr. 870.) 

 Ilelix pilcus Y Pfr. Mon. Hcl. I. p. 32 4. 



— — var. Chemn. ed. nov. Helix I. p. 157. t. 40. f. 5. 



— lenta Pfr. in Malakoz. Bl. ISS-i. p. 57. 



— — (Geotrochus) Pfr. Vers. p. 145. 



Acavus lentiis (Geotrochus) H. et A. Adams Gen. II. p. 196. 



Habitat in insulis Moluccis? 



1645. H. pileus Miiller. 



T. subobtecte perforata, coniformis, oblique striatula, alba, 

 rufo varie fasciata; spira elongata, acutiuscula; anfr. 6 con- 

 vexiusculi, sensim accrescentes , ultimus antice subadscendens, 

 infra medium obtuse angulatus, basi subplanulatus, castaneus; 

 apertura diagonalis, truncato-ovalis , intus concolor; perist. sim- 

 plex, late expansum, album, margine supero sinuoso, antror- 

 sum subarcuato, basali reflexo, cum columellari obliquo, trian- 

 gulatim dilatato, supra perforationem reflexo, angulum distin- 

 ctum formante. — Diam. maj. 25, min. 22, alt. 25 mill. fCoU. 

 Nr. 871.) 



Helix pileus Miill. , Dillw. Cat. II. p. 933. n. 106. 



— — Desh. in Encycl. meth. II. p. 264. n. 148. 



— — Pfr. Mon. Hel. I. p. 323. n. 846 (oxcl. var. y). 



III. p. 220. n. 1251. 



— — Reeve Conch. ic. n. -493. t. 91. 



— — Pfr. in 3Ialakoz. Bl. 1854. p. 57. 



— — (Geotrochus) Pfr. Vers. p. 145. 



Acavus pileus (Geotrochus) //. et A. Adams Gen. II. p. 196. 

 Habitat in Moluccis. 



1646. H. meta Pfr. 



T. subobtecte perforata, coniformis, tenuiuscula, vix stria- 

 tula, nilida, coloribus varia; spira turbinata, acutiuscula; anfr. 

 6 — 6Y2 convexiusculi , ultimus infra raedium obtuse subangu- 

 IV. 1 7 



