( 122 ) 



remaining ambulatory leg is long and slender ; its merus, carpus, and pro- 

 podite are not broad compressed organs for swimming as they are in Spiro- 

 pagurus spiriger. 



From Mr. Stanley Gardiner's Maldive collection : not in the Museum. 



EuPAGURus, Brandt. 



Eupagurus, Brandt, in Middendorff's Reise in Sibiriens, Zool., II„i. 1851, p. 105: Stimpson, 

 Proc. Acad. Nat. Sci. Philad. (1858) 1859, p. 236: Heller, Crust, sudl. Europ., 1863, 

 p. 158 : Miers, Cat. Crust. N. Zealand, 1876, p. 62 : Haswell, Cat. Austral. Crust., 1882, p. 152 : 

 Henderson Proc. Koy. Phys. Soc. Edinb., IX., 1885-88, p. 68; and Challenger Anomura, 1888, 

 p. 62 : Ortmann, Zool. Jahrb., Syst., VI., 1891-92, p. 297 ; and in Bronn's Thier-Reich, Malacos- 

 traca, p. 1145: Benedict, Proc. U. S. Nat. Mus., XV.. 1892, p. 1: Milne Edwards and Bouvier, 

 Mem. Mus. Comp. Zool. Harvard, XIV., No 3, 1893, p. 139; and in Crust. Decap. " Hirondelle," 

 Monaco. 1894, p. 73: T. R. R. Stebbing, Hist. Crust., 1893, p. 160 ; and P. Z. S., 1900, p. 534 : 

 Thomson, Trans. N. Z. Inst., 1898, p. 172. 



Bernhardus, Dana, U. S. Expl. Exp. Crust., pt. I., 1852, p. 440. 



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

 cervical groove : rostrum either distinct or obsolescent. Abdomen well 

 developed, soft, spirally coiled. 



Eyestalks either stout or slender, ophthalmic scales usually distant. An- 

 tennal acicle long ; flagellum long, nude or more or less setose. 



External maxillipeds widely separated at base : the exopodites of all 

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

 1st maxillse is without a flagellum, but may sometimes have a rudiment of 

 one. 



The chelipeds are usually dissimilar and unequal, the right being much 

 the larger ; very rarely are they subequal : the fingers move in a more or less 

 horizontal plane, and the finger-tips are calcareous, rarely corneous. 



The 4th pair of legs are subcheliform ; the 5th pair are minutely or im- 

 perfectly cheliform, the fingers being very short and blunt: in both pairs (as 

 also on the uropods) the usual subterminal pavement of imbricating granules 

 is found. 



The abdominal appendages, in addition to those that form the tail-fan, 

 are four in number (somites 2 — 5) in both sexes: they are unequally biramous, 

 one ramus in the case of the 4th appendage being a minute rudiment, and are 

 placed as usual on the left side. In some cases, in the male, the appendage 

 of somite 2 is absent. The telson and uropods are usually better developed 

 on the left side than on the right. 



The gills are phyllobranchire (occasionally having the gill-plates cleft at 

 tip) and are 11 on either side, arranged as in Parapagurus and Sympagurus. 



