CHAMBERLIN : MYRIOPODA OF THE AUSTRALIAN REGION. 189 



5G5. DiNEMATOCRicus PHiLisTius Attcms. 



Bijilr. dierk, 1915, 20, p. 11, fig. 19-21.1 



Locality. — ^ Dutch New Guinea. Waigeu. Ceram: Honitetu.' 



566. DiNEMATOCRicus (?) DOREYANUS (GcFVais). 

 Spirobolus doreyanus Gervais, Insect. Apt., 1847, 4, p. 174. * 

 Locality. — New Guinea.^ 



567. DiNEMATOCRicus SINUATULUS, sp. nOV. 



Type.— M. C. Z. 4,801. Paratypes.— M. C. Z. 4,802. Queens- 

 land: Cooktown (A. G. Mayer). 



Black, the segments caudally narrowly bordered with ferruginous. Legs 

 and antennae pale ferruginous. 



Sulcus of head widely interrupted in the frontal region. Setigerous foveolae 

 2 + 2. Antennae short. 



CoUum well rounded below. Margination in front obscure or absent. 

 Second tergite extending well below collum, not flattened or excavated. 



Anal scutum covering the valves above, the latter protruding a little beyond 

 it. Valves a little compressed; no margining sulcus. 



Branches of telopodite of posterior gonopods slender as usual but the outer 

 or principal one shghtly clavate and truncate at tip; the inner branch much 

 the more slender and shorter, straight, acute, well apart from the other. 

 Basal part of median plate between triangular and semicircular in form, the 

 base Une reentrant at middle; distal process about equal in length to basal 

 part, slightly spatulate in form. 



Number of segments, forty-two to forty-eight. 



Diameter of female, up to 5.5 mm.; of male, up to 3.7 mm. Length of 

 male type, 30 mm. 



Distinguished from other known Australian species in having the 

 posterior margins of segments sinuate above the scobina as in various 

 Fijian species, leaving the scobina in some cases freely exposed. 

 Scobina occurring back to the thirty-first segment. Prozonites some- 

 what depressed. Sutures on most segments obscure dorsally. Ex- 

 posed part of prozonites smooth excepting for sparse, exceedingly fine 

 and weak puncta and short lines; covered part with wavy fine trans- 

 verse lines. Metazonites smooth. 



568. DiNEMATOCRicus EXUL, sp. nov. 



Type.— M. C. Z. 4,732. Paratypes.— M. C. Z. 4,733. New 

 Guinea: Djamna (Thomas Barbour). 



