319 



somewhat dilated in the middle, outer part attenuated and projecting beyond 

 the palm of the propodos. Posterior gnathopoda moderately slender, propodos 

 somewhat thickened in its proximal part, and gradually tapering distally, 

 chela occupying about l /t> of the length of the propodos. The 2 anterior pairs 

 of pereiopoda moderately strong, propodal joint about the length of the carpal 

 one, dactylus extremely small ; the 2 succeeding pairs increasing successively 

 in length, and having the dactylus somewhat larger. Last pair of pereiopoda 

 very much elongated, with the carpal joint the longest. Last pair of uropoda 

 with the rami narrow lanceolate, and quite unarmed. Telson rather large, oblong 

 oval in form, terminal edge slightly insinuated. Body whitish, ornamented 

 with a dark brownish pigment, which on some of the segments forms distinct 

 transverse bands. Length of adult female scarcely exceeding 4 mm., that of 

 male about the same. 



Remarks. I have but little doubt that the above-described form, now 

 for the first time added to the fauna of Norway, is that briefly characterised 

 by Sp. Bate as Kroycra brevicarpa. It may readily be distinguished from 

 the 2 other species belonging to this genus, by the very short and evenly- 

 curved rostrum, the less elongated form of the posterior gnathopoda, and 

 especially by the peculiar colouring of the body, which is well conspicuous 

 even in specimens for a long time preserved in spirit. 



Occurrence. The species is not rarely met with both off the south 



and west coasts of Norway, as also in the Trondhjemsfjord, in depths varying 

 from 10 to 30 fathoms. 



Distribution. - British Isles (Sp. Bate.) 



21 Synchelidium haplocheles (Grube). 



(PL 112, fig. 2). 



Kroycra hairtochelcs, Grube, Die Insel Lussin, p. 72. 

 Syn : Pontocrates haplocheles^ Boeck. 



Body somewhat less slender than in the preceding species. Cephalon 

 nearly attaining the length of the first 3 segments of mesosome combined, 

 and strongly vaulted in front, rostrum perpendicularly deflexed, acute, and 

 reaching nearly to the end of the basal joint of the superior antennae, lateral 

 corners somewhat produced, and distinctly angular at the tip. First pair of 

 coxal plates considerably expanded distally, terminal edge quite straight; 4th 

 pair rather large, and considerably deeper than the corresponding segment, 

 infero-posteal corners somewhat produced ; 5th pair very broad. Eyes compa- 

 ratively smaller than in S. brcvicarpum, rounded, with only few visual ele- 



