THE BRANCHLE OF BATHYNOMUS 345 
garded individually, resemble little trees or plumes, arising 
from stems, which, by repeated subdivision, produce a 
regular bush of hair.’ These branchial trees are connected 
by their tubular stem with a network in the ordinary 
laminz of the pleopods, and when the blood has been 
aerated it is gathered into a marginal vessel, from which it 
is transferred in the usual way to the cavity surrounding 
the heart. 
Anurépus, with its single species, the large and re- 
markable Anuropus branchiatus, Beddard, may have greater 
claims to be the type of a distinct family, Anuropide, 
since, in addition to the conversion of the uropods into 
branchial pleopods, and the absence of eyes, the first an- 
tenn have only two joints, and the very short ‘ palp’ of 
the maxillipeds consists of a single joint. 
As two of the genera of the Cirolanidz have thirty or 
- forty species between them, while the other three genera 
have only a single species apiece, it is not unreasonable to 
suppose that there may be many species of this family 
either extinct or still undiscovered. Between Hurydice 
and Cirolana the late M. Hesse, in 1866, places a new 
genus, which he variously called Hucolumba and Hucolom- 
ban, with two species named picta and ornatus. 
Fanily B.—Corallanide. 
Corallana, Dana, 1552, the single genus, contains some 
fifteen or sixteen species from the Atlantic and Pacific. 
The male of the species Corallana tricornis, Hansen, from 
the West Indies, is ornamented by a large frontal horn 
and two other large horns near the back of the head. The 
epithet ‘ large,’ however, is comparative, for these horns do 
not approach in size the three processes of the head in 
Ceratocephaius Grayanus, Woodward, among the Sphero- 
mide. Since the type-species of Corallana, hirticauda, 
Dana, was obtained from the coral reefs at Tongatabu, the 
origin of Dana’s generic name cannot be misunderstood. 
At the same time it chimes in with the sound and com- 
position of such names as Cirolana, Conilera, and Rocinela, 
