Miscellaneous. 71 



1 1 . Although the transitory spines which arm the thorax of some 

 species do not receive any arterial branch, a complete circulation is 

 established in their cavity. Some of the globules which the venous 

 lacunae convey to the heart make a digression into these transitory 

 appendages, traverse nearly their whole length, and return by a 

 parallel course into the lacuna from which they started. 



12. The central nervous system of the larvae of Crustacea presents 

 differences in its arrangement and form from that of the perfect in- 

 dividual ; and the development of each of the medullary nuclei which 

 constitute the ganglionic masses is in relation to the development of 

 the organs to which these nuclei correspond. 



13. Lastly, no larva of any species of Crustacea presents traces 

 of the generative apparatus. — Comptes Rendus, May 7, 1866, 

 pp. 1024-1027. 



On the Mi-lou or Sseu-pou-siang, a Mammal from the north of 

 China, which forms a new Section in the Family Cervidae. By 

 A. Milne-Edwards, 



Father David, a missionary at Pekin, has sent to the Museum at 

 Paris a zoological collection containing skins of the Mi-lou, a large 

 species of stag, which is regarded by M. A. Milne-Edwards as a 

 completely new form. 



In its general aspect, in its coat, its clumsy gestures, and the 

 mode in which the male carries his horns, it has a certain resem- 

 blance to the Reindeer. It approaches the true Cervi by the posses- 

 sion of a naked muffle and in the anatomical characters of the skull; 

 but it is distinguished from all known Cervidae by the direction and 

 mode of ramification of the horns, and also by the structure of the 

 tail. 



The horns present no basal anterior antler, but they are greatly 

 developed and much branched. The processes of the frontal bone 

 from which they originate are larger than in the common stag. 

 The beam is thick, and, at a considerable distance a1)ove the burr, 

 gives origin to a long posterior branch, which is directed almost 

 horizontally backward, so as nearly to touch the back of the animal; 

 this branch is almost as thick as the perche, and bears on its sub- 

 terminal portion several antlers arranged upon its outer margin and 

 very close together, so as to form a sort of palmation slightly resem- 

 bling that ot the brow-antler of old reindeers. The perche, instead 

 of being regularly curved, is twisted into an S-like form, and bears 

 two large antlers directed backwards and inwards ; it terminates in 

 a fork ; lastly, all the upper part of the horn is armed with a series 

 of large tubercles, several of which are so much developed as to form 

 little accessory antlers on the outer margin. The female has no 

 horns. 



The coat of these animals is rough, brittle, very thick, and of a 

 uniform yellowish-grey colour, except on the median line of the back 

 and chest, where there is a black band. 



The tail, instead of being short and thick, is very long, and fur- 



