Dr. Strahl on new Thalassine from the Philippines. 889 
projects but little beyond the eye-peduncles. The latter present 
nothing remarkable; they lie upon the first, dilated, slightly 
convex joint of the inner antennz, and extend as far as the 
second joint. The forehead, the second joint of the inner 
antenne, and the first joint of the outer ones all project the 
same distance forward. The three joints of the inner antennz 
are all nearly of the same length; the flagellum is double, 
the outer one is somewhat stronger and a little shorter than the 
inner one—at the utmost, of the length of the thorax. The 
latter is straightly truncated behind; its lateral parts extend 
further backwards. 
As regards the clothing of many parts with hair, our species 
resembles G. major, but it is smaller (G. major attains a length 
of 3 inches 7 lines) and still more abundantly clothed with hair, 
whence the specific name. The second joint of the outer an- 
tenna is the longest of the three, and exhibits a densely bearded 
line on its outer side, running obliquely, from above and behind, 
downwards and forwards, which gives this joint a most deceptive 
appearance of consisting of two joints. The first joint is armed 
with a spine at its inner anterior angle. This antenna only bears 
one flagellum, and this is of half the length of the animal. 
There is no trace of a scale-apparatus. The tuberculum is 
situated, not as in G. littoralis, in the middle of the ventral sur- 
face of the intercalare, but more outwardly. 
The external maxillipeds are foot-like; their palpus is of the 
length of the second joint, and its flagellum scarcely reaches 
beyond the third joint. In G. littoralis, Risso, the palpus bears 
no flagellum. 
The first pair of feet is subcheliform, in accordance with the 
generic character ; the hand is furnished on the outside with a 
row of dense long hairs, running obliquely, from above and be- 
hind, downwards and forwards. The first three pairs of feet are 
strongly beset with long hairs on their lower and inner sides, 
_ The fifth pair of feet is different from the rest, and nearly sub- 
cheliform ; the immoveable finger is but small and weak. This 
pair of feet bears no branchiz ; the branchie on the others are 
tufted. The femoral joints present a spine on the upper edge 
_at the distal extremity. 
The abdomen is at first slender, but gradually becomes broader 
and thicker. There are no abdominal feet on the first segment 
in the male. From the second segment onwards two oval fringed 
appendages are suspended from a short peduncle; of these, the 
inner one is smaller than the outer; neither of them bears a 
filamentous appendage. The caudal fan consists of a nearly 
square central piece, of which the posterior margin has a fine 
and short fringe. Upon this piece there is no central ridge, but 
Ann. & Mag. N. Hist. Ser. 3. Vol. ix. Me 
