REPORT ON THE ANOMURA. 145 



The left chela has the propodus almost devoid of spines, and the fingers are longer than 

 those of the right chela, exceeding the jaalm in length ; a few minute spinules are pre- 

 sent at the apices of both fingers. The ambulatory limbs are slender, with the meral 

 and carpal joints spinose on the anterior margin ; the dactyli are of moderate length and 

 comparatively broad, though the apices are acute. 



The eyes are of moderate size and but slightly flattened, with the peduncles 

 tolerably elongated. In place of the four segments met with in the antennal peduncle 

 of Galatheids generally, five distinct segments can be distinguished in this species, a 

 result apparently due to a splitting of the first segment, and the anterior portion 

 probably in part represents the antennal spine, which is otherwise almost obsolete. The 

 external maxillipedes are more slender than usual ; the ischium and merus are smooth 

 externally, and a few very minute denticles are present on the inner margin of the 

 latter. 



Two minute spinules separated by a rather wide interval are present on the anterior 

 dorsal margin of the second abdominal segment ; the terminal segments are glabrous, 

 with the strise but faintly marked. 



This interesting species is distinguished from all the other known members of the 

 genus by its upturned serrated rostrum, and the presence of five separate segments in 

 the antennal peduncle. 



Breadth of carapace (of a female with ova) 47 mm., length of body 16 mm., of 

 carapace 6"5 mm., of rostrum 5-3 mm., of left chelipede 22 mm., of chela 9*5 mm., 

 of ambulatory leg (detached) 1 4 mm. 



Habitat. — Station 113a, anchorage off Fernando Noronha ; depth, 7 to 25 fathoms ; 

 bottom, volcanic sand and gravel. A single specimen. 



Munida tuberculata, Henderson (PI. XV. fig. 2). 



Munida tuberculata, Henderson, Ann. and Mag. Nat. Hist., ser. 5, vol. xvi. p. 413, 1885. 



Characters. — The rostrum is slightly more than half the length of the carapace, and 

 about four times the length of the supraorbital spines ; all three are somewhat broad 

 and flattened, almost horizontal in direction, and the rostrum has a median carina on 

 its upper surface. The striae on the surface of the carapace are granulated and very 

 prominent ; the gastric area is armed anteriorly with a transverse band of short irregular 

 tubercles, arranged in two or three rows, and a few similar, though less distinct, eleva- 

 tions are present on the hepatic and anterior branchial regions ; tlie cardiac area is 

 fairly well defined, and one of the striae crossing it near its middle is specially prominent. 

 The lateral margin of the carapace bears a few minute teeth ; the posterior margin is 

 raised and prominent, but unarmed. 



The chelipedes are of moderate size, and the various joints are armed with short 



(ZOOL. CHALL. EXP. PART LXIX. — 1888.) ZZZ 19 



