280 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
Family STENOGYRIDZA. 
16. Opras Watxerr (Bens.). Lampun. 
This species, originally described from the Andaman Islands, was 
found in the Shan States of Burma by Mr. F. Fedden (Theobald, 
Journ. Asiat. Soc. Bengal, 1870, pt. u, p. 395; Nevill, Handlist Moll. 
Ind. Mus.,i, p. 165). Its occurrence in Northern Siam is therefore 
not surprising. 
This is perhaps the same as Stenogyra turricula, v. Martens (Ostas. 
Zool., ii, 1867, p. 82, pl. xxi, fig. 7), but it cannot be the original 
S. turricula, v. Mart. (Proc. Zool. Soe., 1860, p. 9). 
[‘‘ Rare. Found on moss and brick walls.”—W. M. D.] 
17. Opras cracize (Hutton). Lampun. 
Immature specimens, probably of this species, have already been 
reported from Chieng Mai by Morlet (Journ. de Conch., 1891, p. 282). 
[ ‘Found on brick walls. Not common.”—W. M. D. | 
Family LIMN AID A. 
18. Pranorpis Exustus, Desh. Lampun. 
Family CYCLOPHORID. 
19. CycLopHorts spEcrosus (Phil.). 
{‘‘Common all over North and South Siam, especially where there 
are rocks, or limestone caves. Eaten by the Karens and Laos after 
dropping in hot water for a few minutes. It is found in teak forests 
mostly.”—W. M. D. | 
20. CyctopHorus FLorIDus, Pfr. 
A considerable number of specimens amongst Mr. Daly’s collections 
agree with the description of this species, but appear also to be merely 
a variety of C. fulguratus, Pfr., the common Pegu form. 
21. Scasrina Laorica, Mlldff. Nachrbl. Deutsch. Malak. Ges., 1897, 
p. 35. Lampun. 
Except in one respect, this shell agrees with the description quoted. 
The exception is that the peristome in Mr. Daly’s specimens is simple 
and slightly expanded, not ‘ multiplicatum’ as it is described by 
Mollendorff. But the difference may very possibly be due to none 
of the shells from Lampun being fully mature. (Since writing the 
above I have seen another specimen in Mr. Daly’s collection with 
a thickened subduplex peristome.) 
[The small shells are ribbed and are not common. Found only 
where rocks occur.’”—W. M. D. ] 
22. Ruzostroma Bernarpi, Pfr. Lampun. 
The two specimens sent agree fairly with the figures published 
(Journ. de Conch., x, 1862, p. 45, pl. vi, fig. 5; Conch. Icon., No. 28), 
but are smaller in dimensions (diam. maj. 14, min. 11 mm.; alt. 6 mm.). 
This species and P. (2h.) tener are intermediate in character between 
typical Lhiostoma, with the last whorl free for some distance near 
