1847. 
1830. 
1858. 
1862. 
1863. 
1863 
1865. 
1866. 
1869. 
1876. 
1904: 
1904. 
. Pt. (Litwus) 
— 436 — 
Cyclostoma Petiverianum 
. Pterocyclos brevis Martyn 
brevis Mart. 
Cyclostoma lychnus 
Pterocyclos brevis 
Cyclophorus — 
Pterocyclos —- Mart. 
Myxostoma breve 
Cyclophorus brevis 
Myxostoma breve Mart. 
Sowerby, Thes. Conch. 
p. 116, pl. XXV, fig. 100, 
101. 
Perit, Catal. des Cyclos- 
tomes in J. de Conch. I, 
p. 43. 
Preirrer, Zeitschr. f. Ma- 
lak.) p. 9. 
PreirFER, Mon. Pneum. 
p. 42. 
. Cyclophorus (Litwus) brevis Mart. Benson, Ann. and 
Mag. of Nat. Hist., 24 Ser. 
X Veap 16: 
PFEIFFER, Mon. Pneum. 
fer suppl. p. 40. 
Moretet, Rev. et Mag. 
de Zool. p. 478. 
Crosse et Fiscuer, Journ. 
de Conch. XI, p. 364. 
Reeve, Conch. Icon. pl. I 
fig. 4a, 4b. 
Premrer, Mon. Pneum. 
2° suppl. p. 60. 
MABILLE et LE MESLE, J. de 
Conch. XIV, p. 434. 
FRAUENFELD, Verh. Zocl. 
Bot. Ges. Wien XIX, p. 
878. 
Premrrer, Mon. Pneum. 
3° suppl. p. 99. 
P. Fiscuer, Catal. Indo- 
Chine-- loc. cit.~p. 485; 
(104 du t. a p.) 
H.FIscHER et DAUTZENBERG, 
Catal. Indo-Chine in Mis- 
