REPOET ON THE BRACHYITRA. 
73 
Libinia subspinosa, Streets. Chili. 
Libinia rostrcita, Bell. Peru. 
? Libinia setosa, Lockington ( = Libinia semizonale, Streets, fide Lockington). 
Lower California. (This species may belong to the other section of the 
genus. I have never seen Street’s description of Libinia semizonale, which 
is identified with Libinia setosa by Lockington in a MS. note on the margin 
of my copy of his paper, and I am ignorant of the locality of his types.) 
2. Orbits with an open fissure in the superior margin, and a wider hiatus in the 
inferior margin. Basal antennal joint with a well-developed spine at the antero-external 
angle : — 
Libinia spinosa, Milne Edwards. Brazil, Patagonia, Chili (Gay). 
Libinia brasiliensis, Heller ( Libidoclea ). Brazil, Rio de Janeiro. 
Libinia gibbosa, A. Milne Edwards. Brazil, Desterro. (The form of the orbits 
and basal antennal joint is not mentioned by the author.) 
Libinia coccinea , Dana {Libidoclea). East Coast of Patagonia (30 fathoms). 
Libinia gracilipes, n. sp. Coast of Chiloe (45 fathoms). 
Libinia smithii, n. sp. Coast of Chiloe (245 fathoms). 1 
Libinia smithii, n. sp. (PI. IX. fig. 1). 
The carapace is subpyriform, rather longer than broad, moderately convex, and is 
covered with small tubercles and with very long spines, which are disposed as follows : — 
Four in a longitudinal and median series, of which two are upon the gastric, one upon 
the cardiac, and one upon the intestinal region, close to the posterior margin of the 
carapace ; of these four, the cardiac and intestinal spines are longest ; there are also a 
strong prseocular spine, a spine on each hepatic region, and three on each branchial region ; 
of the branchial spines, the lateral one is extremely long, about half the length of the 
carapace. The small tubercles of the dorsal surface are situated mostly upon the gastric 
and branchial regions, and are not very numerous ; there is also a series of small tubercles 
on the sides of the branchial regions, above the bases of the ambulatory legs, and an 
oblique series on the pterygostomian regions. The rostrum is about half the length of 
the carapace, and is composed of two slender spines, which are coalescent for about half 
their length, and thereafter slightly divergent. The epistoma is short, transverse. The 
sternum has on each side four obscure transverse ridges ; the post-abdomen has all of its 
1 The Libinia expansa, A. Milne Edwards, 1878 ( = Doclea orientalis, Miers, 1879) from the mouth of the Amoor River 
and Japanese Seas, is doubtfully referred by Milne Edwards to this genus. I have seen no males, but on account of the 
smallness of the basal antennal joint and other characters, I think it should be retained in Doclea. A. Milne Edwards 
has described a second species, Libinia bidentata, from the mouth of the Amoor, which seems to be sufficiently 
distinguished from Libinia expansa by the different tuberculation of the carapace. 
(ZOOL. CHALL. EXP. — PART XLIX. 1886.) 
Ccc 10 
