138 



The Ist tooth is situated l'/4 to 1 '/^.-times as far froiu the pos- 

 terior as from the anterior margin. 



Carapace and abdomen resemble those of the specimens from 

 the west coast of Enrope. 



The variety elegans of the Black Sea is fnrthermore oharac- 

 terized by the shorter ramns of the outer antennular fiagellnm, 

 the coalesced jjortioH (Fig*. 1^) of irliiclt appears inrariahJij (/isfiticfh/ 

 longer than the f ree portiou : in all the specimens from the Bay 

 of Sebastopol this character is observed, except only in the ova- 

 bearing specimen, where botli portions seem to be of equal length. 

 Twelve of 14 specimens from Rovigno show the same proportion 

 of the coalesced part to the free, in 2 specimens both portions 

 seem to be of equal length. As regards, finally, the 5 specimens 

 from the Gulf of Naples, the fused portion appears in two 

 distinctly longer, in one distinctly shorter than the free part, 

 while in two females both portions are of equal length. That 

 specimen from Naples, in which only fhree sevenths (Fig. Ic') of 

 the shorter ramus are coalesced, is a femalo with eggs, long 

 48 mm. : such specimens are in the Mediterranean probably stiil 

 rare, while the relative number of specimens in which the free 

 portion appears as long or longer than the coalesced, will prove 

 to increase, as I suppose, in the western parts of the Mediter- 

 ranean and on the coast of Portugal, this variety passing then 

 gradually northward into the variety hitermedia. 



Mandibular palp two-jointed, agreeing with Kemp's tigure 'ih 

 (1. c.) ; in a young specimen, long 37 mm., from the Bay of 

 Sebastopol the terminal joint, as long as the basal one, is 0,4 

 mm. long and 5-times as long as thick at its base. 



As regards the external maxillipeds and the legs this variety 

 does not differ from the variety inteytnedia. In G4 specimens from 

 tlie Bay of Sebastopol the carpus of 2^ legs appears slic/htlt/ 

 shorter than the chela (Fig. 1^2), except in 2 quite youHg spe- 

 cimens in which both are of equal length ; the shape is also the 

 same, so e. g. the carpus of the ova-bearing female is 6-times 

 as long as thick at the distal extremity. As regards the 11 spe- 



