286 Mr. R. Swinboe on a new Species of Beech-Marten. 
II. CLADOCERA. 
Oculi compositi in unum coaliti. Pedum paria 4-6. Metamor- 
phosis nulla. Libere natantia. 
1. Daphnid^. 
III. BRANCHIURA. 
Oculi compositi sejuncti. Pedum paria 4. Metamorpbosis in- 
completa. Parasitantia. 
1. Argulid^. 
[To be continued.] 
XXXVI. — On a new Species of Beech- Marten from Formosa, 
By Robert Swinhoe, H.B.M. Consul at Taiwan. 
When I read my paper " On the Mammals of the Island of 
Formosa" before the Zoological Society (December 9, 1862), I 
I noted that I had not at that time been made aware of tbe 
existence of any species of Mustela in the island. Since then, 
from the mountains of the interior towards the south, I have 
procured, through my hunters, a fine species of forest-Marten, 
which is perhaps the handsomest animal that I have had the 
good fortune to obtain. Dr. J. E. Gray^s invaluable epitome of 
the known species of the Mustelidce (Proc. Zool. Soc, Jan. 24, 
1865) has enabled me to determine, without much troublesome 
research, that the Formosan animal is an undescribed species. 
The Formosan Marten has, as might be expected, its nearest 
ally in Martes flavigula (Bodd.), of the Nepal Hills. I would 
propose to distinguish our species as the 
Martes chrysospila. 
Head blackish brown, the hairs on the occiput being tipped 
with white. Centre of inside of ear white. Chin, sides of 
head, throat, and central streak of underneck also white. 
Sides of neck a fine bright golden colour. Body, above and 
below, bright purplish brown, becoming nearly black on hind 
quarters, hind legs, and tail. Fore legs blackish brown, pale 
down their fronts. Claws whitish. Length, from muzzle to 
base of tail, 20^ inches ; from base of tail to tip of hairs at its 
end, 17 inches. Top of shoulder to tip of lore foot about 
8 inches. 
Habitat. Mountain-forests of central Formosa. 
Martes flavigula is thus briefly described by Dr. Gray, in the 
paper above referred to : " Yellowish ; head, nape, rump, legs, 
and tail black ; chin and lower parts white." I cannot remark 
on the difierence of the cranium and dentition of the two species, 
as I have no specimen of the Nepalese species to compare with. 
Amoy (China), June 22, 1866.