254 MISCELLANEOUS NOTES, 



No, V. On a New Race of Calloacuirus atr odor sal is (Gray), 



from North Siam. 



By H. C. Robinson & R. C. Wroughton. 



(Repiintt'd fiom .loiun. F. Jl.S. Museimi, VII, p. 91). 

 Callosciunis atrodoralis zimmeensiit, subsp. nov. 



Tijpe. Adult female (skin and skull), British Museum No. 9, 

 10, 11, 20. Collected at Chiengmai, Nortli Siam, on i2tli April 1908 

 by Mr. T. H. Lyle and presented to the National Museum. Collector's 

 Number 245. 



Diaipiosis. A local form of C. atrodorsalii!, in which the dorsal 

 patch is almost obsolete and the rufous undersurface broken by a patch, 

 coloured like tiie back, on the throat, chest and a narrowing area of the 

 abdomen. 



Colour. General colour above the usual olivaceous grizzle, the 

 dorsal black patch almost obsolete; below the throat chest and a 

 wedged area, e.xtending to at least half the length of the abdomen 

 coloured like the flanks, the remainder nearly hazel. Face like back 

 with no trace of the brij^ht colouring so characteristic of typical C. a. 

 atrodorsalis. Hands and feet finely grizzled, at least as daik as the 

 back. Tail rather as in C caniceps concolor than in C. atrodorsalis, i.e., 

 the fulvous shading of the hairs so common in the latter almost entirel}' 

 absent in this form. 



Dimensions. Extenal dimensions of the type, taken in the flesh ; 

 head and body, 217 ; tail, 20o ; hindfuot, 49 ; ear, 21 mm. 



Skull: Greatest length, 55; basilar length, 42; zygomatic 

 breadth, 32 ; nasals 17 ; diastema, 12 ; upper-molar series, lO.U mm. 



liemarks. A fine series of 12 specimens, all witii one exception 

 taken between 700 and 1,000 feet in altitude, is quite constant in show- 

 ing the obsolescence of the black dorsal patch and equally so in the 

 encroachment of the dorsal colouring on the throat, chest and anterior 

 abdomen. An individual taken at Muang Pai on the Salwin watershed 

 shows intergi'adation with other forms from British Burma. 



No. VI. Occurrence of the Pied Imperial Pigeon ( M)jnstidvora 

 hicolor ) in the Gulf of Siam. 



In March of this year three Pied Imperial Pigeons visited Koh 

 Pliai (Siamese, Koh = Island) in the linier GnlfofSiam. They were 

 the first birds of this species seen by n)e during two years residence 

 there, or indeed in any other ]),irt of Siam, and were extremely shy 

 and difficult to a|)proacli, as they fre(juented the hill-tops only. I 

 succeeded, after a week, in ol)taining a shot on the 25th March, and 

 secured one bird wiiicli 1 jjreserved and have given to Mr. \V. J. i'\ 

 Williamson. The other two made off in a south-westerly direction and 

 were not seen again. They appeared to mo to My more rajiidly than 



JOl'BN. NAT. HIST. SOC. SIAiM. 



