SYSTEMATIC REPORT 105 



Length, largest <S, 0/2 mm.; largest $, 10-2 mm. 



Remarks. This species very closely resembles A. kempii, but may be distinguished by its shorter 

 robust form with the ' telescoped ' anterior end ; by the almost straight anterior margin of the carapace ; 

 by the form of the eyeplates with the well-marked papilla in the middle of each plate, by the absence 

 of serrations on the outer margin of the antennal scale and the absence of an auxiliary tooth ; by the 

 presence of three spines on the inner margin of the endopod of the uropod; and, particularly, by the 



A I 



Fig. 21. Ambylops durbani sp.n. A, adult female in dorsal view, x8; B, right antennule, X22; C, left antenna, X22; 

 D, right eyeplate in dorsal view, x 22; E, eighth thoracic appendage of male, x 22; F, right uropod, x 22; G, telson, x 22; 

 H, distal end of telson, x 36. 



shape and armature of the telson. In A. kempii the telson is much longer and more slender, the lateral 

 margins being armed with a row of 27-28 graduated spines, which extend over the distal five-sixths 

 of their length, while in A. durbani there are only 10-11 spines, extending along rather less than half 

 of the lateral margins. The apex in A. kempii is more rounded, narrower and bears only two pairs of 

 long spines, which are shorter than those of A. durbani, but the minute median spinules and the 

 plumose setae are precisely alike in both species. 



Distribution. The species has at present been taken on only one occasion — in a day oblique haul, 

 4i6(-o) m. off Durban. It would thus appear to be a meso-planktonic form. 



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