uo 
convexiore, acute carinata, striis confertissimis obsoletis notata, 
albida, maculis irregularibus brunneis, subtus fasciam interruptam 
formantibus variegata; anfr. 4'/, planiusculis; umbilico mediocri, 
pervio: apertura late elliptica; perist. simplice, reflexo, marginibus 
callo funiculato junctis, basali unidentato. 
Diam. 42, altit. 13 mill. — Rat. anfr. — 4 : 7. — Ins. Luzon 
(Brod.), insul. Negros et Luban (Cuming). 
Variat magnitudine et forma. In nonnullis anfractus ultimus 
basi irregulariter malleatus et juxta aperturam substrangulatus, 
137. Helix luzonica Sow. — T. imperforata, conico- glo- 
bosa, crassiuscula, oblique striata, rufa, apice sanguinca, epider- 
mide liberca fere omnino tecta, medio fascia lata albida ornata; 
spira. conoidea: anfr, 5— 5'/, convexiusculis: columella obliqua, 
dilatata, tuberculosa; apertura lunato-orbiculari , intus lactea; 
perist. incrassato, late reflexo, albo vel purpureo late limbato. 
Diam. 41, altit. 29. mill; — .Rat. anfr. — 5: 7. — Insula 
Luzon. (Cuming.) 
Differt ab H. pulcherrima testa crassa, conoidea, anfractibus 
pluribus ct sensim accrescentibus, columella vix excavata, et labro 
incrassato. 
138, Helix matruelis Sow. Proc. zool. soc. 1841. p. 24. 
— T. imperforata, globoso-depressa, tenuiuscula, oblique striata, 
nigricante, epidermide fusco-cinerea hydrophana obducta; area 
columellari nitide lutea, fascia nigricante circumdata: spira parum 
elata; sutura levi; anfr. 4, supremis complanatis: columella per- 
obliqua, valide dentata, extrorsum dilatata, brunnea; apertura 
subtrapezoidali, intus livida; perist. incrassato, expanso, brunneo- 
marginato. 
Diam. 40, alti. 25 mill. — Rat. anfr. — 2: 3. — Insula 
Mindanao. (Cuming.) 
f£. minor, subglobosa: diam, 35, altit. 24 mill. 
Forma affinis H. melanocheile, sed columella dentata facil-. 
lime. distinguenda. 
139. Helix melanocheila Val. Grat, Bord. XL. p. 397, 
t. 4, f. 12. — H. brunnea Sow. Proc. zool. soc. 1841. p. 40; — 
T. imperforata, globoso-depressa. crassiuscula, fusca, epidermide 
hydrophana .cinerco-fusca fasciatim. obducta, | fasciis nigricantibus 
ornata; spira depresso-semiglobosa; anfr. 4'/, vix convexiusculis; 
columella perobliqua, late expansa, alba; apertura lunato-rotun- 
data, intus alba: perist. subincrassato, expanso. 
Diam, 48, altit. 30 mill. —. Rat. anfr. 2 2: 8; — Ins;: Min- 
doro. (Cuming.) 
