TIIK M VKIAI'nhA IN TlIK A I'S IK A MAN .MlsKl.M l;i;(">l,K M AN N . 181 



)»late, louudeil. Tibia ('!'.) in a line with the feinuj- (Fem.j, its 

 stem only a little long-er than wide ; <he distal plate almost 

 circular, more than half the length of the stem, not reaching 

 tlie summit of the ventral ])late. Posterior basal plate (r. 2.) 

 evenly rounded distally, with concave sides. 



Posterior gonopods twiJ-jointed ; the distal joint ending in 

 two flagelliform. gradually tapering processes, of which the 

 inner is shorter than t he outer. Tracheal stalk long and slender, 

 curved distally. 



Female unknown. One male specimen from Thursday 

 Island. 



DiXEMATOCRICUS, s'^z. 



9 mat. : length 108 m/m ; diameter 10.50 m/m ; 51 seg- 

 ments ; one segment apodous : 95 pair of legs. 



The single female specimen known is closely related to the 

 preceding species, from which it had to be separated on 

 account of the following particulais : — The last tei'gite, the 

 valves and all the joints ai'e of the same dark olive brown 

 colour as the body. A large dimple is to be seen on the fore- 

 head between the eyes. 



The anal stei'gite is .triangular, with a broad base, and 

 slightly emarginate lateral margins, the length being more 

 than one-third of the breadth. A deep transvei-se sulcus exist 

 near the base of the sternite. 



This specimen could have been identified with t^pirulmlag 

 fenichell, Daday,-''* had not the author stated that his species has 

 no scobinas. 



New Guinea. 



DlXEMATOCRlCt;S. ANALIS, sp. nuV. 



(Plate xvii., tigs. 49-52.) 



(5" mat. : length 102 m/m ; diameter 8 m/m ; 49 segments ; 

 one segment apodous ; 89 pair of legs. 



9 mat.: length 114 mm ; diameter 9.50 m/m ; 49 segments ; 

 one segment apodous ; 91 pair of legs. 



■'^ Daday— Term. Fuzct., 1898, p. lo:.'. 



