402 Annals of the South African Museum. 



Cape Peninsula in False Bay are smaller than specimens from 

 the west side in Table Bay (see Introduction). 



PAEISOCLADUS PEKFOBATUS (M. Edw.). 

 (Plate XXXII. H.) 



1840. Spliaeroma perforata, M. Edwards, Hist. Nat. Crust, vol. 3, 



p. 211. 

 1866. Heller, Novara Crust, p. 139, pi. 12, 



fig. 9ay, &? 

 1905. Dijnamemlla (?) ,, Hansen, Q.J. Microsc. Sci. vol. 49, 



pt. 1, pp. 117, 126. 

 1910. Cycloidura (?) Stebbing, Gen. Cat. S.A. Crust, p. 431. 



Body very minutely shagreened, not granulate except on the 

 telson, where the granules are well developed and hirsute, body 

 glabrous except on the epimera, telson and uropods, the female 

 less strongly granulate and hirsute than the male. 



In the male peraeon widening gradually to the 6th segment, 7th 

 narrower, its lateral margins overlapped by 6th, with a stout process 

 reaching to the middle of the telson, apex of the process with a 

 tuft of setae and a notch on underside, a minute tubercle at base 

 on either side. In the female peraeon nearly parallel-sided, 7th 

 segment without a process, but posterior margin with a slight 

 median rounded lobe. 



Pleon in male with 2 very obscure submedian tubercles on 4th 

 segment (often quite obsolete), telson with 2 small submedian 

 tubercles in centre and numerous irregularly scattered granules, 

 apex acute, with a narrow slit widening anteriorly into an oval 

 transverse foramen. In the female 4th segment 2 minute sub- 

 median tubercles, telson with 2 submedian humps each with 1 or 2 

 minute points, apex subacute, rather upturned, with deep ventral 

 groove, scarcely visible in dorsal view. 



First antenna, 1st and 2nd joints not stout, nor internally keeled, 

 2nd a little over half the length of 1st, 3rd f length of 1st, flagellum 

 as long as peduncle, 10-jointed. 



Second antenna reach to end of 2nd peraeon segment, 1st joint 

 short, 3rd and 4th subequal, longer than 2nd, 5th twice length 

 of 2nd, flagellum a little longer than peduncle, 13-jointed. 



Epistome triangular, proximal end shortly truncate, the arms 

 not embracing more than half of the upper lip, whose distal margin 

 is rounded and setose. 



Lower lip with short and broad lobes, apices subrotund. 



