139 
darker tint ; chin, throat and under part paler, not punctated ; end of 
tail bright yellow, with an elongated black tip. 
Hab. Abyssinia. 
The hair of the back short, yellow, with a short blackish base and 
a narrow dark brown subterminal band ; of the throat and under part 
of the body longer uniform pale yellow, with a short dark band at 
the base; of the lower half of the tail longer pale yellow, with three 
or four rather narrow, equidistant darker bands ; of the end of the tail 
uniform bright yellow, and of the hinder end all black, forming a 
terminal tuft. Ears rather large, rounded, covered with short close- 
pressed hairs. The soles of the hind-feet bald to the heels. 
The skull is rather elongate and narrow ; the false grinders are 3-3, 
the first being very small and conical; the third are subtriangular, 
with a slight tubercle on the inner side: the orbit not quite com- 
plete, but with a short interruption in the middle of the hinder side. 
Length of skull 2, inches, width 1; length of palate 1,4, inch; 
of face from front of orbit 53 lines; of lower jaw 1 inch 34 lines. 
5. Description OF A NEW SPECIES OF CINCLOSOMA. 
By J. Goutp, Esa., F.R.S. Etc. 
(Aves, pl. 6.) 
CINCLOSOMA CASTANEOTHORAX, ND. Sp. 
Sp. Ch.—Crown of the head, ear-coverts, back of the neck and 
upper tail-coverts brown; stripe over the eye and another from the 
base of the lower mandible, down the side of the neck, white ; shoul- 
ders and wing-coverts black, each feather with a spot of white at the 
tip; all the upper surface, the outer margins of the scapularies, and 
a broad longitudinal stripe on their inner webs next the shaft, deep 
rust-red ; primaries, secondaries, and the central portion of the sca- 
pularies dark brown; tail black, all but the two central feathers 
largely tipped with white; chin and throat black; chest crossed by 
a band of rich rust-red; sides of the chest and flanks brownish grey, 
the latter blotched with black ; centre of the abdomen white; under 
tail-coverts brown, deepening into black near the tip, and margined 
with white; bill and feet black. 
Total length, 83 inches; bill, 1; wing, 4; tail, 4}; tarsi, 1. 
Hab. Darling Downs, New South Wales. 
Remark.—Nearly allied to C. castanotus and C. cinnamomeum, from 
which it is however easily distinguished by the colour of the chest 
and back. 
Dr. Macponatp communicated orally his ideas on the Vertebral 
Homologies as applicable to Zoology, of which observations he has 
furnished the following abstract :— 
** Dr. Macdonald gave a short sketch of the characters of tLe typical 
vertebra, as proposed by Professor Owen and several continental 
zoologists and comparative anatomists, and then contrasted it with 
one which had been the result of many years’ study, and which he 
considered more in accordance with the vertebra and its auto- 
genous and exogenous elements as traceable in the endoskeleton of 
