Ge 
STREPTAXIS (KUSTREPTAXIS) COSTULATUS MIldff 
Var. subeostulata Mlldff 
4901. Streptavis(Eustreptaxris) costulatus Mlldfi, subsp. sub- 
| 
1903. = 
1904. — = 
costulatus, MOLLENDORFF, 
Diagn. neuer von H. 
Fruhst. ges. etc. in Na- 
chrichtsbl. d. d. Malak. 
Ges. p. 65. 
Mildff, var. swbcostulata 
Mlldff, Bavay et DauTzen- 
BERG, Descr. cog. nouv. 
Indo-ChineinJ. de Conch. 
p. 201; pl: VIN, f.45 2i3e 
Mlildfi subsp. subcostula- 
tus, H. FiscHer et Daut- 
ZENBERG, in Mission Pavie 
Et. div. THI, p. 390 (4 du 
tyes) 
Tonkin: Su-Yut. Riviere noire (M. Demange). 
HELICARION IMPERATOR Gould 
1859. Vitrina imperator 
1862. — — 
1867. == —_ 
4868. — = 
4881. Helicarion — Gld. 
4885. — = Gld. 
1887. — maleficus 
GouLp, Proc. Boston Soc. 
N. H. VI, p. 422. 
Gou.p, Otia Conch. p. 101. 
v. Martens, Preuss. Exp. 
nach Ostasien p. 41. 
PreirreR,Mon.Hel.v.p.14. 
v. Martens, Mittheilun- 
genl, p.73,pl. XIII,f.1 a6. 
Tryon, Man. of Conch. 
Str. and Syst. I, p. 179, 
pl. 44, f. 76-78. 
J. Masitite, Moll. Tonk. 
diagn. p. 2. 
