REPORT ON THE BRACHYURA. 5 
The description of the former species (from a very imperfect type) is, however, too 
brief for certain identification, and therefore Milne Edwards’ designation for the Challenger 
specimens is retained. 
Metopovaphis forjiculatus, A. Milne Edwards. 
Metoporaphis forficulatus, A. Milne Edwards, Crust, in Miss. Sci. au Mexique, pt. v. p. 174, 
pi. xxxi. fig. 3, 1878. 
A male in somewhat mutilated condition was dredged off Bahia in 7 to 20 fathoms. 
A female in very fragmentary condition dredged at Barra Grande, south of Pernambuco, 
at Station 122, in 30 to 350 fathoms, also probably belongs to this species, but the carapace 
is broader, and the tubercles of its dorsal surface are less distinct. 
In both specimens there is a spinule upon the outer surface of the basal joint of the 
antennae, and another at the distal extremity of the same joint which are not shown in 
Milne Edwards’ figures of this appendage (fig. 3a), but I have little doubt of the correct 
identification of the specimens. The type was from Guiana. 
The dimensions of the male are as follows : — 
Adult £ . 
Length of carapace and rostrum, 
Breadth of carapace, about 
Length of chelipede, about 
Stenorhynchus, Lamarck. 
Stenorhynchus, Lamarck (pt.), Hist, des Anim. sans Vert., v., p. 236, 1818. 
„ Milne Edwards, Hist. Nat. Crust., vol. i. p. 278, 1834. 
,, Miers, Journ. Linn. Soc. Lond. (Zool.), vol. xiv. p. 643, 1879. 
The carapace is subtriangulate, with a straight posterior margin, and is more or 
less distinctly spinose above ; there is usually no postocular spine. The rostrum is 
composed of two slender, straight, contiguous spines. The post-abdomen has but six 
distinct segments. The eyes are slender and project laterally. The merus of the outer 
maxillipedes is somewhat elongated and distally rounded, and articulates at its summit 
with the next joint. The chelipedes have the palms somewhat inflated, the ambulatory 
legs are slender and much elongated, with the dactyli nearly straight or those of the fifth 
pair only slightly falcated. 
The species, which are small and not numerous, occur commonly in the temperate 
waters of the northern and southern hemisphere (Australian and South African Seas) at 
moderate depths, and more rarely in deep water 1 and in the Tropical Seas. 
1 A. Milne Edwards mentions the occurrence of Stenorhynchus longirostris in the Mediterranean at 420 metres. 
(Rapport sur la faune marine dans les grandes profondeurs de la Mediterranee et de l’Ocean Atlantique, p. 18, 1SS2.) 
Lines. Millims. 
61 13-5 
3 6-5 
8 17 
