62 



REPORT ON THE CENTIPEDES AND MILLIPEDES OBTAINED BY 



(6) Otostigmus angusticeps, sp. n. 



Colour a uniform green, head slightly rufescent : anal legs banded with darker 

 green. 



Head oval, elongate, rather coarsely but sparsely punctured antennae with 19 seg- 

 ments, of which the basal two or three are naked. 



Precoxal plates of maxillipedes armed with 3-3 teeth, the two inner fused, the 

 outer isolated. 



Tergites smooth, punctured, not spicular, and not noticeably wrinkled, from the 5th 

 bisulcate, from the 9th marginate. 



Sternites also smooth, strongly and completely bisulcate, with an anterior and 

 posterior median impression. 



Anal somite : tergite posteriorly impressed : sternite broad : pleurae elongate, with 

 two apical spines and one external spine near the base of the process. 



Legs moderately long, femur armed with 11 strong spines arranged in four rows 

 3, 3, 2, 3 : tarsus unspined. Protarsal segment of the remaining legs spined. 



Total length 41 mm. : of anal leg 11, of antennae 12. 



Loc. New Britain. 



Differs from the preceding species in the smoothness of the dorsal and ventral 

 surface, the completeness of the sulci on the sterna, the fewer spines and absence of 

 protarsal spur on the anal legs. 



Genus. Ethmostigmus, Poc. 



(7) Ethmostigmus platycephalus (Newport). 



Heterostoma platycephalus, Newp. Trans. Linn. Soc. xix., p. 415 (1845). 

 Loc. New Britain. Previously recorded from Halmahera, New Guinea, Tahiti, Duke 

 of York Island, etc. 



(8) Ethmostigmus granulosus, sp. n. 



Colour a tolerably uniform olive brown, with metallic reflection; lower surface olive 

 yellow, antennae olive green at the base, distally covered with fulvous pubescence ; 

 maxillipedes and anal pleurae castaneous ; legs olive green with pale yellowish basal 

 and tarsal segment. 



Antennae with 20 segments, whereof the basal 3-4 are naked. 



Head and tergal plates finely punctured ; the middle and posterior tergal plates 

 very finely but not very closely granular, the granulation thicker at the posterior end 

 of the body than at the anterior end ; tergal plates from the 5th bisulcate, from the 

 6th marginate : sternal plates very obsoletely bisulcate. 



Anal pleurae long and slender, surpassing the middle of the femur and as long 

 as the femur of the anal leg, armed with 1 lateral spine ; 2 larger adjacent apical 

 spines, above which there are usually 2, and below sometimes 1 smaller spine. 



Anal sternite narrowed and emarginate posteriorly ; its posterior width less than its 

 length and only a little more than half its basal width. 



