( 117 ) 



into about 9 segments (not including the terminal filament), each of which 

 carries a tuft of olfactory hairs that is longer and more conspicuous than the 

 lower flagellum. 



The right cheliped is very much larger than the left, and is smooth and 

 almost bare : the hand is the longest joint, and the palm is longer than broad, 

 and broader at its far end than at its neat end : the fingers meet throughout 

 their extent. 



Legs smooth and bare, the dactyli long and very slender. In the male 

 the right vas deferens is a rigid curved tube, which passes from the coxa of 

 the 5th right leg across the ventral surface of the abdomen and then ascends 

 obliquely over the left fiank, slightly increasing in size distally and endin^r 

 abruptly. 



Length of carapace of a male about 3 millira., of an egg-laden female 

 2 millim. 



In two male specimens the left gill-chamber is greatly distended by a 

 parasite. 



From Mr. Stanley Gardiner's Maldive Islands collection. 



Spiropagukus, Stimpson, 



Spiropagurus, Stimpson, Proc. Acad. Nat. Sci. Philad. (1858) 1859, p. 236; Henderson, 

 Challenger Anomura, 1888, p. 71 : Milne Edwards and Bouvier, Mem. Mus. Comp. Zool. Har- 

 vard, XIV., No. 3, 1893, p. 110: T. R. R. Stebbing, Hist. Crust., 1893, p. 165: Ortmann, in 

 Bronn's Thier Reich, Malacostraca. p. 1145 : Young, Stalk-eyed Crust. W. Indies, 1900, p. 372. 



Carapace depressed, broadened posteriorly, well calcified in front of the 

 cervical groove and in the vicinity of the cardiac region. Rostrum broad, 

 obsolescent, leaving the ophthalmic somite exposed. Abdomen well develop- 

 ed, soft, spirally coiled. 



Eyestalks short, distally broadened : eyes large : ophthalmic scales 

 distant. Antennal acicle long : flagellum very long, nude, or sparsely setose. 



The external m.axillipeds are widely separated at base : the exopodites 

 of all three pairs of maxillipeds are flagellate. The endopodite (palp;) of the 

 1st maxillae is non-flagellate. 



The chelipeds are equal or subequal and similar, or the right may be 

 the larger : the fingers move in a horizontal plane and the finger-tips are cal- 

 careous. 



The 4th pair of legs are scarcely subcheliform, and have the rasp of im- 

 bricating granules on the propodite much reduced in breadth. The 5th pair 

 are cheliform and (like the caudal swimmerets) have the usual subterminal 

 rasp of imbricating corneous granules. 



