proved that these two feathers were held in a particular manner 

 in front of the others during the bird's flight in the breeding- 

 season. Feathers of both male and female were found to bleat, a 

 fact which had been borne out by numerous obsei'vers in the field. 

 These feathers w^ere found to have a peculiar structure, differing 

 materially from the other feathers in the tail. Microscopically 

 they differed, and the number of hamuli were found to be in excess 

 of those found in other feathers. The feathers of various exotic 

 species had been experimented upon, and those of G. delicaia, 

 7iobilis, fre7iala, paraguaym in the New World, G. ausfralis and 

 aitcklandica in the Antipodes, and G. solitaria and megala in 

 Asia had been found to produce musical sounds. These feathers 

 varied in structui-e, and consequently the sound produced diflfered 

 accordingly. The feathers of G. gaUimda, G. major, and G. stenura 

 were not found to be musical. 



Mr. J. L. BoNHOTE, F.Z.S., communicated a paper on a collec- 

 tion of Mammals from Annam sent home by Dr. Vassal. Twenty- 

 four species were enumerated, of wdiich the following four were 

 described as new : — 



1. Kycticebus pygm^us, sp. n. 



Similar in general colouring to, but about half the size of, 

 N. coucang, and without any dark markings round the eyes or 

 down the back. The teeth are quite diffei-ent, the second molar 

 being the largest, wdiilst the third molar is triangular in shape 

 and but little inferior in size to the first. 



2. TUPAIA CONCOLOR, sp. n. 



Similar in general colouring to T. belangeri, but larger, with a 

 much thicker tail and lacking the light neck-stripe. 



3. SCIURUS LEUCOPUS FUMIGATUS, Subsp. n. 



Similar to *S'. leitcopus, but darker, and the outer sides of the 

 limbs concolorous wdth the back. 



4. FUNAMBULUS RUFIGENIS FUSGUS, Subsp. n. 



Similar to F. r. tyjncus, but much darker in general coloi-ation 

 and having a rufous tinge on the outer sides of the thighs. 



A paper was read from Dr. Emil A. Goeldi, C.M.Z.S., contain- 

 ing descriptions of seven new or little-known species of Marmoset 

 Monkeys from the Amazonian Region. 



Mr. F, E. Beddard, F.R.S., read a paper entitled " Contribu- 

 tions to the Knowledge of the Systematic Ai-iungement and 

 Anatomy of certain Genera and Species of Squamata." 



