chamberlin: myriopoda of the Australian region. 205 



segment, weak on the seventh and obscure or absent above on the following 

 ones. Surface in general smooth and shining. Scoliina in form of deep lunate 

 impression followed by the usual very fine striae; extending caudad to the 

 thirty third segment. 



Anal tergite of usual form, caudally rounded, much exceeded by the valves, 

 surface smooth and shining as is also that of the valves. The latter with 

 surface somewhat flattened but the edges not set off by more marked com- 

 pression. 



Number of segments, forty-six. 



Length (female), about 95 mm.; width, 10 ram. 



589. DiNEMATOCRICUS PARVIOR, ,sp. nOV. 



Type.— M. C. Z. 4,728. Solomons: Ngi (W. M. Mann). 



Deep oUve. Legs Ughter, more brownish. 



Sulcus of head discontinuous at middle. Foveolae 2 + 2. Lower emargi- 

 nation with three distinct teeth. 



Collum well rounded laterally. Not reaching lower level of second tergite. 

 Margined below and up the front of the corner in the usual way. Surface 

 with weak coriarious hnes. A wavy longitudinal stria at level of eye. 



Surface of anterior segments also with weak coriarious hnes, but caudad 

 these quickly become obsolete, leaving the surface wholly smooth. Longi- 

 tudinal striae below level of pore deep, more numerous and complete in front 

 of suture, where there are also a few above the level of the pore. On most 

 segments the transverse sulcus is lost in a shallow furrow above which lies a 

 number of weak furrows paralleling it. Scobina present to segment thirty- 

 seven. 



Anal scutum and valves with sparse coriarious hnes. Valves exceeding 

 the scutum as usual. 



The distal process of the median plate of the male gonopods narrowed 

 proximally, being ovatelanceolate in form much as in D. obvius. The telopo- 

 dites are also much as in that species, crossing in the middle hne and with the 

 lesser branch very short, and well below middle of the longer one; telopodite 

 shorter than in obviiis. 



Number of segments, sixty-one. 



Length (male), near 62 mm.; width, 7 mm. 



590. DiNEMATOCRICUS TULAGIANUS, sp. nOV. 



Type.— M. C. Z. 4,915. Paratypes.— M. C. Z. 4,916. Solo- 

 mons: Tulagi (W. M. Mann). 



Sulcus of head interrupted in frontal region, distinct elsewhere. Clypeal 

 foveolae 2 + 2. Antennae short; sensory cones four. 



