348 Annals of the South African Museum. 



ceding leg; the trunk very much reduced and scarcely as long as 

 the foot ; only the distal pad is present, although sometimes in a 

 rudimentary condition, and between it and the body there is only 

 one row of papillae on the median side. 



The papillae on the dorsal and lateral surfaces of the body mostly 

 flat-topped, cylindrical, or clavate, many being enlarged hi the distal 

 part and constricted towards the middle or base. 



Length and width of largest ? (preserved in ale. sol. of HgCL 

 and contracted) : 34 x 44- mm. 



Colour of preserved specimens (2-|- years in spirits). Dorsal and 

 lateral surfaces dark green,* the lateral band on each side just above 

 the bases of the legs lighter than the dorsal surface. The medio- 

 dorsal and the lower lateral darker stripes distinct and similar to 

 those of balfouri ; the upper lateral dark stripe, however, distinctly 

 denned only along its lower border and as thickly studded with 

 orange papillae as the rest of the dorsal surface. These papillae 

 evenly distributed over the whole surface (except in the medio-dorsal 

 stripe) and also between the legs, resembling those of balfouri in 

 colour but not becoming white in spirits. 



Ventral surface more or less tinged with green in places, some- 

 times the greater part greenish. The papillae with dark-green tips 

 numerous ; intermingled with them are a fewer number of pallid 

 papillae, which are broadly pallid round their bases and green-tipped 

 in the darker specimens only. These pale papillae correspond to the 

 orange ones of the dorsal surface. 



Legs. Outer surface dark green with no, or at most one or two, 

 orange papillae to each leg. Under surface like the ventral side of 

 body, but often paler. Spinous pads green, the proximal pad or the 

 proximal part of the middle pad, or both sometimes yellowish. 



Locality. I collected four large females from rotten logs in the 

 forest at Knysna. 



This species is much rarer than scdywicki, which inhabits the 

 same locality and was also found in the same logs. It differs from 

 all the other species of the genus in possessing the curious clavate 

 papillae of Opisthopatus cinctipcs on the upper surface. 



On dissecting a specimen of this species, captured at the end of 

 March, 1896, I found the oviducts full of a number of very advanced 



* These specimens were collected in March, 189G, and in August of the same 

 year I referred to them as being of a black colour above (Trans. S. A. Phil. Soc., 

 ix., p. xviii, 1897). The change to dark green is quite the usual one, and the 

 original colour was probably a greenish black, which agrees very well with my 



recollections of the living animal. 



