248 Mr. B. I. Pocock on 



green, and first tergite, castaneous ; antenna? green; maxillary 

 sternite castaneous, with the exception of its anterior third, 

 which is pale green. 



Head-plate truncate behind, wider than long, not silicate. 



Antennas relatively long, composed of twenty-one elongate 

 segments, whereof the basal two are naked and the rest pubes- 

 cent. 



Maxillary sternite wide, distinctly hollowed in its lateral 

 portions, the concavity being bounded behind and at the sides 

 by a well-marked ridge ; prosternal plates divergent from 

 the base, each armed with four strong and sharp teeth ; basal 

 tooth of the maxillipedes projecting far in advance of the 

 prosternal plates, each distinctly bi- or tridentate ; claw long 

 and slender. 



Tergites from the seventh sulcate, from the tenth margi- 

 nate, obsoletely wrinkled. 



Sternites not sulcate, at most bearing the very faintest indi- 

 cations of two lateral impressions. 



Anal somite. — Sternite with very convex lateral margins 

 and strongly concave posterior margin ; pleurce thickly 

 covered with small pores, the process short and stout, termi- 

 nated by one or two small spines, without superior or lateral 

 spines ; tergite with a faintly marked posterior impression ; 

 (anal legs alisent). 



Legs with the claws armed with two basal spines; the 

 proximal tarsal segment armed with two spurs, an anterior 

 and an inferior ; in addition the patella of the first pair of legs 

 aimed with a single anterior spine, and the tibia of the first 

 seven pairs armed with a single anterior spine. 



A single specimen, length 41 millim. 



In the absence of the anal and preanal legs it is not possible 

 to point out the affinities of this species. But it is sufficiently 

 characterized by the depressed condition of the sides of the 

 maxillary sternite — a peculiarity which I have never seen in 

 any other member of the genus. 



Himantarium (?) striatum, sp. n. (PI. XII. figs. 4-4 6.) 



Colour ochraceous, with darker markings and a pale median 

 band above, paler beneath. 



Head-plate scarcely longer than wide, convex, anterior and 

 lateral margins convex, with rounded postero-lateral angles 

 and straight posterior margin, completely covering the max- 

 illary feet ; frontal lamina large and distinct. 



Basal plate as wide as the head, very short, being about 

 five times as wide as long. 



