The Am[)]iipoda of Bcr>iiu(hi. 



67 



First antennae terminating about on level with first third of fla- 

 gellum of second antennae ; peduncle slightly less than ^j^ as long 

 as flagellum, first joint longest and stoutest, third slightly shorter 

 than second which in turn is about ^2 3-S long as first; flagellum 

 composed of about 12 elongated segments. Second antennae not 

 as long as body, with peduncle less than ^/a as long as flagellum ; 

 third joint scarcely as broad as long, fourth and fifth joints subequal 

 in length, fourth much thicker than fifth ; flagellum composed of 

 about 16 elongated segments. 



Mandibles strong, oblong, principal and secondary cutting edges 

 divided into 3 or 4 teeth of difterent sizes, molar tubercle very 



Fig. 25. Hyale jnero'-fu (^Miliie-Edwards). 



large and cylindrical with flat grinding surface, palp absent. Lower 

 lip with no inner plates, outer plates stout, rather widely separated 

 from each other, anterior margins rather short and densely ciliated, 

 mandibular processes short but strong. First maxillae with 1-jointed 

 palp which does not extend beyond apex of outer plate, provided 

 with single apical seta ; outer plate large, having oblique apical 

 margin with numerous stout, forked and pectinate spine teeth ; inner 

 plate slender, triangular, with 2 plumose spines at apex. Second 

 maxillae with inner plate rather shorter than outer and about as 

 wide, both plates provided with setae apically. Maxillipeds with 

 4-jointed palp; inner plates rectangular extending nearly as far as 

 apex of first joint of palp and provided on distal margin, which is 

 transverse, with 3 triangular odontoid spines and numerous plumose 

 spines which also occur on the straight inner margin ; outer plate 



