SEBIDAE 



107 



Remarks. These specimens are clearly identical with the Challenger specimen, 

 although the minute denticulation on the telsonic apex appears to be quite absent. The 

 c? has slightly heavier gnathopods 1 and 2, the hand and 

 finger of gnathopod 1 in $ shaped as in antarctica, and 

 strongly expanded 4th joints of peraeopods 3-5. Eyes 

 not visible. 



Schellenberg's dubia appears very similar, especially 

 as regards the telson, but the 2nd joint of peraeopods a. 6. c. 



3 and 4 is less expanded. His descriptions of the 1st and Fig. 55. Seba saundersii, Stebb. a.Tel- 

 2nd side-plates (coxae I and II) would seem to be trans- son and uropod 3 of <j. b. Telson of?. 

 posed, as otherwise they apply to Stebbing's figure and c ' Uro P od 3 ° f ?■ 

 to the present specimens. It is the second side-plate which has the sharp postero-inferior 

 angle. 



In both typica (Chilton) and armata, Chevr., the telson has a similar narrow oval form 

 as in saundersii and dubia. 



Distribution. Off Cape Virgins; ? ' Gauss' winter station; ? South Africa. 



Seba antarctica, Wlkr. (Fig. 56). 



Walker, 1907, p. 37, pi. xiii, fig. 22. 

 Barnard, 1930, p. 339. 



Occurrence: 1. St. 39. South Georgia. 6 $$ 2-5- 

 4 mm., 1 $ 3-5 mm. 



2. St. 140. South Georgia. 6 $<$, 8 ?? 

 (some ovig.) 4-5-5 mm. 



3. St. 142. South Georgia. Thirty-four 

 specimens, $£, $$ (some ovig.) 

 and juv. 2-3-5 mm - fr° m sponge. 



Remarks. Walker's statement that the ' Dis- 

 covery' (190 1 -4) ?$ "agree in the smallest 

 detail " with Stebbing's description and figures 



of the 'Challenger' saundersii— a statement <j. b. MaxiUiped. c. Telson of 3. d. Telson of 9 

 accepted by Chilton (1921) and Schellenberg 

 (1926) — obviously belies his figures of the 



telson. From Chilton's remarks {Ann. Mag. Nat. Hist. (7), xvn, p. 571, 1906) it would 

 seem that Walker at first identified his specimens with saundersii, and later changed 

 the name in his note on Chilton's paper. 



In this species the telson in both sexes is distinctly broader than in saundersii, with 

 a sharper apex, the palp of maxilla 1 is stouter, and the postero-inferior angle of the 

 third side-plate is quadrate (cf. Walker's figure, but in the present specimens the 

 antero-inferior angle is rounded). 



Distribution. McMurdo Sound. 



c d 



Fig. 56. Seba antarctica, Wlkr. a. Gnathopod of 



14-2 



