48. H. rcctang^a Pfr. 
T. imperforata, orbiculato -conica, solida, striatula, griseo - 
straminea, area basali, linea suturali ct fasciis latis castaneis 
ornata; spira elevata, obtusa; anfr. C— Cy 2 convexiusculi, ultimus 
subrcctangule carinatus, basi pianiusculus, medio subexcavatus ; 
apertura depressa, sublrapezia, margine columellari incrassato, 
calloso -subunidentato, — Diam. maj. 13, min. 12, ait. 10 mill. 
(Coli. Nr. 31.) 
Helix rectangula Pfr. in Proc. Zool. Soc. 1845. p. 130. 
— — Chenm. cd. II. Helix N. 217. t. 28. f. 8. 9. 
Habitat in insulis c< Marquises ». 
Obs. Variat unicolor pallida, linea suturali modo el area basali ca.staneis 
y 49. H. conus Philippi. 
T. imperforata, conica, trocbiformls, basi a’cuie carinald,* 
laevis, fulva, carina albida, utrinque cingulo angusto, rufo margi- 
nata; spira elata, apice acuta; anfr. 8 plani, ultimus basi planiiis- 
culus, medio impressus; apertura depressa, oblique quadrangu- 
laris; perist. simplex, acutum, margine columellari perobliquo, 
subincrassalo. — Diam. maj. 15, min. 14/2, ait. 11 mill. (Coli, 
Nr. 32.) 
Helix conus Phil. colL Pfr. Symb. I. p. 39. 
— — PliiL Icon. I. 1. p. 1 1. l. 1. f. 6. 
— — Chemn. cd. II. Helix N. 2 16, t. 28. f. 6. 7. 
Habitat in insula Java. 
50. H. pemphigo des Pfr, 
T. imperforata, subglobosa, tenuis, membranacea., oblique 
plicatilia, diaphana, lulescenli-cornca ; spira brevis, papillata; 
anfr. 4- vix convexi, ultimus magnus, carinatus, juxta suturam 
intlatus, basi convexus, antice vix descendens; columella simplex, 
acula, subvcrticalis; apertura ampla, fere circularis; pcrisl. sim- 
plex, acutum, marginibus conniventibus. — Diam. maj. 18, min. 
14, ait. 12 mill. (Mus. Ciiming.) 
Helix pemphigodes Pfr. in Proc. Zool. Soc. 184 6. p. 1 10. 
Habitat in insula Cuba (Lindon). 
51. H. CampbcUii Cray. 
T. imperforata, orbiculata, utrinque convexa, superno con- 
fertim rugosa, striis sfiiralibus leviter decussata, pallide biunnea, 
fascia unica lata, pallida supra periplieriam ornata; spira conoidea, 
obtusa; anfr, I V. planiiisciili, ultimus medio anmilatus, basi sub- 
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