218 PROFESSOR CHARLES CHILTON ON THE 



This species had been recorded from South Africa by Mr STEBBING under the name 

 of Atyloides assimilis, from a specimen found on the screw of the Challenger off Cape 

 Agulhas. Mr STEBBING'S figure of the telson shows .some approach to that of the 

 Saldanha Bay specimens, but each lobe bears only two acute teeth. 



Genus DJERBOA Chevreux, 1906. 



Djerboa fin -cipes Chevreux. 



Djerboa furcipes Chevreux, 1906n, p. 74, figs. 42-44. 



South Orkneys, Scotia Bay, Station 325 ; 10 fathoms. (No date.) A few 



specimens, the largest 15 mm. 

 South Orkneys, Scotia Bay, Station 325 ; 15 fathoms. April 1903. Six 



specimens, the largest 18 mm. long. 



These specimens agree well with the description and figures given by CHEVREUX. 

 They bear a very close and striking resemblance to Leptamphopus novas-zealandise, 

 and it is very difficult to distinguish the two species without dissecting off the 

 telson, which is deeply cleft in Djerboa furcipes but undivided in Leptamphopus 

 novfe-zealandite ; in the first species, however, the integument is marked by a number 

 of short marks arranged more or less in parallel lines, and in doubtful cases this helps as 

 a guide to their identification. 



Genus PARACERADOCUS Stebbing, 1899. 



Paraceradocus miersii (Pfeffer). 



Meyamcera miersii Pfeff'er, 1888, p. 121, pi., fig. 3. 

 Paraceradocus miersii Stebbing, 1906, p. 429. 

 ,, Chevreux, 1906B, p. 93. 



South Orkneys, Station 325 ; from stomach of Weddell seal. 4th January 1904. 



One male, 45 mm. long. 

 South Orkneys, Station 325 ; dredge, 9-10 fathoms. 17th August 1903. One 



female, 22 mm. long ; June 1903, one female, 20 mm. 



In the large specimen all the segments of the perseon and pleon are rounded 

 dorsally ; the pleon is slightly compressed but not carinate ; teeth are present on the 

 first and second segments of the urus as described ; the third uropods are missing. 

 The female specimens also show no carination on the person or pleon, and have the 

 third uropods of moderate size only. The upper antennae are considerably longer than 

 half the body ; the second joint of peduncle is as long as the first, and the rlagellum is 

 considerably longer than the peduncle. In the lower antennae the flagellum is longer 

 than the last joint of the peduncle. Except for the absence of carination, the specimens 

 agree closely with PFEFFER'S description. 



This fine species is now known from South Georgia, South Orkneys, Port Charcot, 

 Booth Wandel and Hovgaard Islands. 



(BOY. soc. EDIN. TKANS., VOL. XLVIII., 500.) 



