from the, South Orkney Islands, 



245 



althougli no Pyciiogonid has normally a claw on the palp, all 

 tiie appendages posterior to it may end in claws. 



I am unable to perceive any difference between this species 

 and D. australis in the t'onn of the female genital openings 

 {cf. Bonvier, Pj^cnog. ' Pourquoi Pas,' 1913, p. 50). 



Palps of Decolopoda antarctica. A, left ; B, right. 



Decolopoda antarctica v,'n& obtained by the 'Franqais' at 

 Port Charcot, Booth AYandel Island, in latitude 65° S. Its 

 discovery at about 61° S., in a locality where D. australis 

 was previously taken by the ' Scotia,' shows that it is not, as 

 Bouvier suggested, confined to higher latitudes than are 

 reached by the last-named species. 



Measurements in n^illimetres. — 



Length of proboscis 17'7o 



Greatest diameter of proboscis 4'o 



Length of trunk (including cephalon) l:^-5 



Width across second lateral processes 130 



Lengtli of abdomen 70 



Length of first segment of left chelophore. . . . 9-o 



Diameter of ditto at distal end 2-25 



Fourth left leg — 



Coxse (together) 11 '5 



Femur 2o'o 



First tibia 27-5 



Second tibia 332o 



Tarsus lf)o I 



Tropodus 1 2-0 \ 38-4 



Claw 9 9 



