I. TRÄGÅRDH, DISCOMEGISTUS NOV. GEN. 11 



comparison with those of other Antennophorince, as for instance 

 in Neomegistus [comp. Trägårdh 6, textfig. 1, pag. 7]. 



Gnathosovia. 



The epistoma is, as is usually the case in commensualistic 

 or parisitic forms, of a simple shape, without any ornamental 

 teeth or appendages; it is broadly conical rounded at the 

 top, witli even edges. 



The mandihles (fig. 9) are of the Antennophorine-type, 

 pro vid ed with appendages. 



Instead of the tufts of hairs (»flagellum» Berl.), usually 

 present at the lower edge of the cotyla of the lower jaw, 

 there is a .solid, fusiform appendage, which is nearly half as 

 long as the lower jaw. 



The lower jaw is shorter than the upper one and nar- 

 row. faloiform, gradually tapering from the large condylus 

 towards the top. 



Along the inner edge it has an extremely fine, hyalin 

 fringe, which is slightly broader than the jaw. 



The upper jaw is almost straight, only very slightly bent 

 downwards in the middle; it tapers very slowly in the basal 

 Vs, the median Vs is of even width, the distal ^/s narrows 

 abruptly to -/s of the width of the median V^ and tapers 

 gradually to Vs of its basal wic^th towards the top; the dorsal 

 edge has a narrow tooth, pointing straight forward, between 

 the median and the distal V^. At the top there is a narrow 

 perpendicular tooth, in the middle of the terminal ^/.^ another 

 broad, conical tooth; between the teeth the edge is perfectly 

 straight, behind the posterior tooth there is a slight exca- 

 vation. 



The dorsal edge has, a little in front of the poste- 

 rior ventral tooth, a narrow button-shaped thickening. Be- 

 tween the jaws there is a narrow, lanceolate, soft and 

 hyalin appendage, which projects a little in front of the 

 upper jaw. 



The palpi (fig. 8) are short, being only a little more than 

 twice as long as the chela mandibuli. 



The 1st joint is wider than it is long and tapers gradu- 

 ally towards the anterior end; the 2nd joint ttipers also for- 

 wards and is cut off obliquely at the top, so that the dorsal 

 edge is almost three times as long as the ventral one; the 3rd 

 joint is bent like a knee in the middle, so that the4th + 5th 



