4. so STAPHYLINIDAE 



teeth, strongly coriaceous elytra and the different abdominal 

 pimcturation. Viewed laterally the inner horn presents no 

 trace of sub-spiral denticle, but only one near the base. 



Mt. Matano-, Type (G. E. Bryant), Mt. Dulit, 3,500 feet, 

 (Dr. E. Mjoberg).' 



PrIOCHIRUS (CePHALOMERUS) illNOR n. sp. 



Mt. Dulit, 3,500 feet, 2 specimens. 



Differs only from the preceding by its narrower build, 

 smaller size and the thorax as long as broad. Length 7 mm. 



Table of the Bornean species of the sub-genus Cephalomerus 

 Bernh. 



1. Head deeply and broadly foveate between the base of the 



inner horn and the eye; elytra strongly coriaceous. 



proximus n. sp. 

 Head not foveate; elytra feebly coriaceous. 2 



2. Base and sides of the abdominal segments closely and 



finely punctured. 3 



Base and apex of the abdominal segments each with the usvial 



row of punctures : frontal impression only slightly wider 



than the sulcus of vertex. Legs black. Size larger, 



11.5 mm. borolinoides n. sp. 



3. The inner horn viewed laterally with distinct subapical 



denticle. Elytra moderately coriaceous. gazella n. sp. 



The inner horn vie\v ed laterally without trace of subapical 



denticle. Elytra scarcely coriaceous. 4 



4. Size larger 10 mm. divaricatus n. sp. 

 Size smaller 7 mm. minor n. sp. 



PRIOCHIRrS (8YNCAMPS0CHIRUS) PARVUS n. Sp. 



Pitchy brown, shining, subdepressed, elytra black. Head 

 4 — dentate, the teeth equal, small, their apices level, the 

 median further from each other than fi'om the lateral ; frontal 

 impression with the sides strongly converging in front, in the 

 middle umbonate, the lateral margins well defined, a little 

 shorter than broad posteriorly, the sides and truncate 

 anterior border much longer than the free margin of the inner 

 teeth ; the internal tooth separated from the external by 

 a semicircular emargination and a fovea adjacent, vertex 

 sulcate. Antennap with the 1st joint emarginate at apex, 4th 

 to 6th moniliform, 7th to 10th transverse, the penultimate 

 rather strongly so, 11th oval. Thorax distinctly transverse, 

 not alutaceous, narrowly sulcate the sides parallel and with 



