190 bulletin: museum of comparative zoology. 



The general color is deep shining black, often somewhat olivaceous; the 

 covered portion of segments brown with the border more reddish; caudal 

 border red with the extreme margin fulvous. Legs greenish. 



Sulcus of head widely interrupted in the frontal region. Foveolae 2+2. 

 Antennae not surpassing the second segment. 



Collum margined below and in front below level of eyes as usual, failing 

 much of reaching lower level of second tergite. 



Covered portion of segments densely finely striate, the striae short, trans- 

 verse, curving and in some degree anastomosing. Surface above elsewhere 

 smooth and liighly polished. Transverse suture or sulcus not present, ob- 

 scurely indicated in a shallow furrow below. Segments striate beneath and 

 on front region of ring higher up toward the pore. Caudal margins of some 

 of the segments vaguely bisinuate. 



Anal scutum surpassing the valves. The latter compressed but margins 

 not sharply set off. 



In the gonopods of the male the median plate has the basal region sublunate 

 in form and longer than the distal process, the latter narrowly subtriangular, 

 rounded at the distal end. Prongs of the telopodite of posterior gonopods 

 subequal. 



Length, to near 80 mm.; width, 7.6 mm. 



A small species readily distinguished in having the anal tergite sur- 

 passing the valves, the scobina extending to the thirty fifth segment, 

 and the number of segments only forty-two to forty-four. 



569. DiNEMATOCRICUS FRATRELLUS, sp. nOV. 



Type.— M. C. Z. 4,762. New Guinea: Manokwari (Thomas 

 Barbour). 



Black, with the covered zone of segments more or less testaceous to ferrugin- 

 ous. Legs dark brown. 



Sulcus continuous excepting for a short distance in the frontal region. 

 Foveolae 2 + 2. 



Second tergite extending much below the collum. Surface of the latter 

 with fine short lines branching in coriarious fashion. 



Prozonites of most other segments also with some fine coriarious markings, 

 the metazonites mostly wholly smooth. Suture distinct below but in middle 

 and posterior region obscure in middorsal region. Posterior margins of most 

 segments bisinuate, though not strongly so, over the scobina. Scobina long, 

 occurring back as far as the thirty seventh segment. 



Anal segment with coriarious markings. Valves exceeding the tergite; 

 inner borders compressed. In having the valves exceeding the tergite readily 

 distinguished from D. extd which the species much resembles in general 

 features; it is a considerably smaller species. 



