226 



A LIST OF THE BATRACHIANS AT PRESENT KNOWN TO 

 INHABIT SIAM. 



H\ Malcolm A. Smith, m.r.cs., L.u.c.r., k.z.s. 



Our knowledge of tlie Hatrachiaii fiiuua of Siam has increased 

 so iiincli sinco Flower's article upon the subject in 1890,' that no 

 ;i[)ology is needed in luiblishing this list. A total now of 52 species 

 against his original 20, will show liow much has been accomplished in 

 the last few years, ^iucli, however, still remains to be done. 



Of the frogs of the genus Rana, 21 species are recoided here, 

 but many others are Icnown from the neighbouring countries and 

 will no doubt be found to inhabit Siam. The curious bui-rowing 

 frogs, CaUida, Gli/phuijlossus and CaUaeUa, and the genus Microlii/la 

 are well represented, and the list of those given must be fairly 

 couijilete. Of Rh'H'Ojikora-i, Zcti^^ts and Mcjahiplinj^, prinoiiially hill 

 dwellers, practically nothing is yet known, and many species should be 

 discovered in the North and along the Western boundary. 



In general bionomics much also remains to be accomplished, 

 and in connection with this subject, 1 should like to draw the attention 

 of members of our Society to the extremely interesting work wliich can 

 be done in studying the larval forms of these creatures. 



From Bangkok itself. Flower recorded 12 species, and 1 have only 

 been able to add one more, namely, OcijijIossh): lacrit; mitrtciii'i. 

 Curiously enough it is one of tlie commonest frogs and abounds 

 throughout t!ie city. Ii'unn c.<i:ii.lcaia 1 have not included in the 12, 

 and doubt if it occurs in Siam at all. In spite of the wide range of 

 tliis frog across Furope and Asia, it has been found nowhere else 

 so far south, and it is more likely that the sjjecimons said to have come 

 from Bangkok have been wrongly labelled and were obtained in China. 



Five more species may ultimately be found to occur in Bangkok, 

 as 1 have introduced them myself in the past few years. They are 



1 r./.S., 1890, p 88j. Notes nn a Second CoUoiaioii of Balrachians 

 iiiiiik' ill the JIalay PoiiiiiRida and Siam, wiili u List of tlie Species RceorJeJ 

 from tlii.ise Countries. l'>y Stanley S. Flnwer. F.Z.S.. 



JuLK.N, -N.Vl. UL"-!. tUL. MAJI. 



