216 Mr. A. S. Hirst oti new PiU-Millipedes 



rounded off and effaced ; niaro-inal excavated area in the form 

 of a narrow groove expanding a little anteriorly and con- 

 fined to the lateral part of the tero'ite. The two lateral 

 depressed areas punctured and connected with one another by 

 a narrow transverse strip, which is finely punctured but not 

 hollowed out. 



Tergites. Punctures almost absent; the anterior margins 

 roughened and granular ; last tergite minutely punctured in 

 its anterior half. 



Legs provided with three spines above the claw. 



Copulatory feet. Anterior forceps with the immovable 

 finger short, much curved, and fiattened, t!ie hollowed-out 

 inner surface bearing a membranous tooth ; movable finger 

 straight and composed of two segments ; the proximal 

 segment with the upper inner corner projecting and almost 

 rectangular ; distal segment with a spine on the inner side. 

 Posterior forceps with the immovable finger stout and 

 beaiing a forked membranous tooth on the inner edge; 

 movable finger stout, curved, and composed of two segments 

 (figs. 6-8). 



Measurements inmm. Total length 53*5^ middle breadth 29"5. 



Hah. Pahang, Malay Peninsula. Three specimens col- 

 lected by Mr. Oraddock. (Brit. Mus. Coll.) 



The following form is apparently a local variety of the 

 above species : — 



Colour (in spirit). Head and nuchal plate black; first 

 tergite black, with the exception of the middle lateral area, 

 ^vhich is yellowish brown : tergites with the posterior two 

 thirds dark, the anterior border yellow; last tergite black, 

 with a narrow yellow border posteriorly. 



Nuchal plate smooth, the punctures minute and very 

 s})arse. 



First tergite (fig. 1). 



Tergites with the anterior margins but little roughened. 



Ijegs with 3-4 spines above the claw. 



Copulatorg feet. Proximal segment of movable finger of 

 anterior forceps with the angular projection sharjier, less 

 rectangular, and more conical than is the case in the form 

 from Pahang (fig. 9). 



Measurements in mm. Total length 43*5, middle breadth 25. 



Hah. Kelantan {Mr. J. D. F. Gimlette). (Brit. Mus. 

 Coll.) 



Zephronia Ridlegi, sp. n. 



Co7o?<r (in spirit). Head and nuchal plate black: tergites 



