202 bulletin: museum of comparative zoology. 



Median plate of male gonopods formed much as in D. perstriatus; basal 

 division nearly sublunate, its proximal margin arcuate and the lateral angles 

 narrow, acute; distal process slender, narrowed at the tip which is acutely 

 rounded, longer than the head division, but bent cephalad at tip as in per- 

 striatus. In the telopodite of the posterior pair the branches are straighter, 

 with the lesser one apphed closely to the other, not divergent as in the other 

 species. 



Number of segments, thirty-five to thirty-seven. 



Length (female), 27 mm.; width, 3.1 mm. 



This species is very similar to D. perstriatus in lacking scobina and 

 in having segments closely, finely longitudinally striate above as well 

 as laterally and below. It differs conspicuously in color, having the 

 lower part of the sides and venter flavous, often of a brick-red cast, 

 the intervening dorsal region greyish black, the prozonites being paler, 

 and of a somewhat bluish cast; along each side of the dorsum a series 

 of small pale spots, a series of light marks also at level of the pores, 

 each mark being a light line from the pore along the longitudinal 

 suture at its level. Anal scutum and valves shining black. Legs 

 flavous. 



585. DiNEMATOCRICUS FIJIANUS, sp. nov. 



Type.— M. C. Z. 4,718. Paratypes.— M. C. Z. 4,719. Fijis: 

 Nagasau (W. M. Mann). 



The color of the types is Ught brown with irregular lighter markings. Legs 

 light testaceous with proximal joints brown. 



Sulcus of head discontinuous near level of antennae. Foveolae 2 + 2. 

 Smooth and shining, with some fine striae of usual distribution. 



CoUum more angular below than in related species, the margin across 

 anterior corner obhque, straight. Margined along anterior corner as well as 

 below. A longitudinal stria at level of eye meeting two transverse sulci 

 running across dorsum as in D. rex and two below pi'oceding from a common 

 lower point. Second tergite extending below collum; not excavated. 



Sulcus single throughout, no anterior sulcus on any of the segments. Sulcus 

 becoming obscure caudad and then absent above. Scobina from sixth to 

 twenty second segment; each of a series of striae. 



Anal scutum longitudinally finely striate like the other tergites. Valves 

 compressed; surface finely coriarious. 



Number of segments, fifty-nine to sixty-one. 



Length (female), 114 mm.; width, 11.2 mm.; depth, 12.5 mm., the body 

 being compres.sed and strongly pointed caudally. An adult male is only 

 84 mm. long and 9.5 mm. wide. 



