REPORT ON THE ANOMURA. 141 



carapace is deeply notched near its anterior end by the cervical groove, in front of which 

 there is the well-marked postorbital sj^ine, while behind about five minute spinules can be 

 made out ; the posterior margin is unarmed. 



The chelipedes are slender and elongated, more especially in the male, in which they 

 are about one and a half times the length of the body, whereas in females they about 

 equal that length ; the joints are covered with raised pubescent scales, most prominent 

 on the upper surface, and several spinules are present on the inner margin, and, to a 

 lesser extent, on the upper surface of the merus, carpus, and propodus. The chela is 

 about twice the length of the carpus, and, in addition to three spinules present on the 

 inner margin, there is a fourth on the outer border, near the base of the immobile finger. 

 The fingers are slender, more particularly in the male, and their opposed edges, which 

 are densely clothed with short hairs, are in contact; the apices cross one another, and that 

 of the dactylus is bispinose, while the immobile finger is trispinose. The ambulatory 

 limbs are moderately slender, and the meral, carpal, and propodal joints are subsquamose ; 

 the fijst two of these joints also have a series of spines on their anterior border, and a 

 row of delicate spinules is present on the posterior margin of the propodi. The dactyli 

 are slender, and but slightly curved. 



The eyes are of moderate size and considerably flattened, with well-developed 

 " lashes " ; and there are also, in addition, two distinct rows of cilia on the upper surface 

 of the peduncle. The antennal spine does not extend beyond the distal end of the 

 second joint of the peduncle, and the latter joint is provided with two spines, on either 

 side of the distal end, and a spinule on the inner margin. The ischium and merus of the 

 external maxillipedes are comparatively smooth externally, and the latter is pubescent ; 

 the merus bears a spinule on either side at the distal end, and a prominent acute spine 

 near the middle of its inner border. 



The second abdominal segment bears two minute spinules, both of which may in 

 some cases be obsolete. The striae are smooth and glabrous, with the hairs short, but 

 there is a tendency towards a scale-like arrangement on the last two segments. 



This species is allied to Munida militaris, from which it is separated by the short 

 supraorbitals, the form of the eyes, the armature of the carapace and first abdominal 

 segment, and the more slender chelipedes. The two approach one another in so many 

 respects that it is possible a larger series of specimens from different localities might 

 show Munida inornata to be only a variety of the former. It also bears some resem- 

 blance to Munida constricta, A. Mdne-Edwards, a species in which there are, however, 

 only two gastric spines. 



Breadth of carapace (of an adult male) 8 mm., length of body 19 mm., of carapace 

 9 mm., of rostrum 5 mm., of chelipedc 40 mm., of chela 15"5 mm., of first ambulatory 

 leg 22 '5 mm. 



Habitat. — Station 219, north of Papua; depth, 150 fathoms; bottom, coral mud. 



