32 DR. W. T. CALMAN ON A COLLECTION OF 



being nearly four times as long as broad, and tbe anterior edge is only slightly convex. 

 The granulated ridge on the underside of the merus of the second pair is present as in 

 P. JuJcesii. 



The abdomen of both sexes is smooth, beset with small scattered setae. The fourth, 

 fifth, and sixth somites are fused together, but the sutures are faintly visible. In the 

 male the sides of the abdomen are straight, convergent, and curve gently inwards from 

 the base of the last somite to the tip without any distinct angle. 



The first abdominal appendages of the male are slender, and the terminal lobes are 

 divergent, the outer lobe being twice as long as the inner. 



Our specimens differ from Miers's type specimens in the greater robustness of tlic 

 second and third pairs of ambulatory legs, the merus and, to a less extent, the propodus 

 being distinctly broader. In all other characters, however, the agreement is 

 complete. 



Locality. " Torres Straits.'' 



Dislrihtitioii. Seychelles, 4-12 fath. {Miers). 



Palicus serripes (Alcock & Anderson). (Plate 2. figs. 20-22.) 



Cymopolia serripes, Alcock & Anderson, Journ. Asiatic Soc. Bengal, Ixiii. pt. 2 (1895) (? 1894), p. 208 ; 



Illustr. Zool. ' Investigator,' Crust, pi. xxiv. fig. 7 (1896). 

 Palicus serripes, Bouvier, Bull. Soc. Philomath. Paris, (8) ix. p. 12 (sep. copy) (1898). 



Carapace with lateral margins convergent anteriorly, the surface leaving the I'egional 

 areas well-defined Init not very prominent, beset with rather coarse granulations on the 

 more prominent parts. Posteriorly the granulations tend to l)ecome squamiform, and 

 there is a line of conspicuous scale-like elevations just within the posterior and postero- 

 lateral margins. Scattered hairs occur among the granules, more numerous on the 

 depressed portions of the surface. The front is four-lobed ; the inner lobes are acutely 

 rounded and depressed, and extend beyond the outer lobes, which are low, rounded, 

 slightly recurved, and hardly defined from the orbital margin. The upper ruargin of the 

 orbit has two deep V-shaped fissures separated by an acute tootli, and a shallower notch 

 at the base of the outer orbital tooth. The latter is acute, and is separated by a short 

 interval from the first of the four subequal antero-latei'al teeth. The lower margin of 

 the orbit is convex in its outer part, concave internally, and terminates in a shai-p 

 internal orbital tooth. Just behind and parallel to the infra-orbital margin is a curved 

 granulated ridge terminating internally in a small tubercle close to the tubercle which 

 forms the anterior corner of the buccal frame. The basal joint of the antenna is 

 pi'oduced extei-nally into a flattened lobe, similar to, but smaller than, that found in 

 P. TVhitei, while the ventral face of the joint bears a row of three or four small tubercles 

 in place of the longitudinal ridge found in that species. The two succeeding joints are 

 rather elongated and cylindrical. The flagellum extends well beyond the outer angle of 

 the orbit. The eye-stalk bears numerous, low, rounded tubercles, two of these on the 

 anterior margin being larger than the others. The ischium of the third maxillipeds is 

 nearly smooth on its ventral surface, and the merus has a well-developed antero-external 



