170 



inferior ones, flagellnm not twice as long as the peduncle, and composed of 

 about 10 articnlatidus ; those in male somewhat more elongated, though scar- 

 cely reaching beyond tlie peduncle of the inferior ones. The latter in female 

 hardl_y more than half the leugtli of tlic Imdy, penultimate joint <if the 

 peduncle much longer than the last one. Anterior guathopoda not verj- strong, 

 propodos oblong oval, and but slightly dilated near the base ; that of the 

 posterior ones about half the length of the carpus, and less narrow than in 

 the preceding species. Anterior pairs of pereiopoda with the meral joint 

 ratlier broad, and forming at the end anteriorly a rounded projecting lobe 

 more distinct on the 1st pair, dactylus very slender, and considerably exceeding 

 in length the 2 preceding joints combined. Last pair of pereiopoda rather 

 roln^st, basal joint shorter than the remaining part of the leg, and having the 

 posterior expansion nearly transversely truncated at the tip, outer joints 

 unusuallj' broad, meral one forming jiosteriorl^y a deflexed lolie fringed with 

 numerous ciliated setse, carpal joint triangular, angularly produced anteriorly, 

 propodal joint verj- large, fully as long as the 3 preceding joints combined, 

 and oblong oval in form, dactylus half its length, and narroAvly lanceolate. 

 Last pair of uropoda with both rami rather broad, foliaceous, and fringed on 

 their opposite edges witli ciliated seta?. Telson rather large, about twice as 

 long as it is broad, slightly constricted near the base, the outer part triangnlarlj^ 

 tapering, and having on each side a row of small bristles somewhat within 

 the edge dorsally. Body whitish, pellucid, mottled with scattered .stellate pig- 

 mentary spots of a dark brownish colour, cephalon and the anterior jjairs of 

 legs parti}' speckled with light-yellow. Length of adult female 12mni, of 

 male about the same. 



Remarls. — This is an easily recognizable s})ecies, chiefly characterised 

 by the peculiar form of the cephalon, tlie deeply Insinuated last pair of epi- 

 meral plates of metasome, and by the structure of the last pair of pereiopoda. 

 Also the coloration of tlie body is rather characteristic. The Araneops hrcri- 

 cornis Costa, of which I have collected a few specimens in the gulf of Naples, 

 is unquestionably this species, and not, as lielieved by Boeck, A. macroccphahi. 

 Likewise, tliere cannot be any doubt that the AmpcVisca (Tetromatus) hellia.id 

 of Sp. Bate is the same species. 



Occiirrmce. — Off the south and west coast of Norway this species is 

 by no means rare, occurring, as a rule, on sand}- bottom, in depths var\-ing 

 from 20 to 60 fathoms. It extends northwards to Groto and Slaatholmen 

 (Lofoten Isles), where it was collected by Dr. Danielssen. 



Disfrih/ifiim. — British Isles (Sp. Bate), coast of France (Chevreux), 

 Mediterranean (Costa), Kattegat (Meinert), Bohuslan (Bruzelius). 



