TALITRIDAE 219 



Occurrence: 1. St. 122. South Georgia. 2 <$<S 16-17 mm. (shore). 



2. Undine Harbour, South Georgia. March 1926. Shore. 1 <J 17 mm., 2 ?$ 14- 

 15 mm., 1 juv. 10 mm. 



Remarks. This species has not previously been recorded from South Georgia. 



Note MS 7 states: "Specimens of Crustacea, Oligochaetes, Coleoptera, Dipterous 

 larvae and puparia, and apterous Diptera found living together under stones at the 

 upper edge of the beach at Undine Harbour, March 1926". (L. H. Matthews.) 



Distribution. Tierra del Fuego; Hermite Island; Falkland Islands. 



Genus Hyale, Rathke. 



Stebbing, 1906, pp. 559, 735. 

 Barnard, 1916, p. 229. 



Hyale sp. 



Occurrence: St. 2. Ascension. 1 $ and 1 ovig. $ 5-5 mm., nine other juv. and immat. specimens. 



Remarks. As the genus Hyale is a somewhat difficult one, and the present material 

 so small, I prefer not to attach a specific name to these specimens. 



The 2nd gnathopod in the $ is of the hirtipalma type, the palm not distinct from the 

 hind margin, the finger about two-thirds the length of the hand ; the palm bears a few 

 setae and spinules. 



Schellenberg (1926, p. 371) has recorded camptonyx from St Helena, but this species 

 has an entirely different 2nd gnathopod. 



Genus Hyalella, Smith. 



Stebbing, 1906, pp. 574, 736. 



Hyalella patagonica, Ortm. (Fig. 134). 



Ortmann, 191 1 (Rep. Princet. Univ. Exp. Patag., in), p. 650, pi. xlviii, figs. 3 a-h. 



Stebbing, 1914, p. 368. 



Monod, 1926, p. 58, fig. 56 (Hyalella sp. juv.). 



Occurrence: 1. St. 222. Hermite Island. 2 SS 10 mm., 

 1 immat. <J 6 mm., 6 $$ 9-1 1 mm. (shore, 

 fresh-water stream). 

 2. Ditto. 8 c?<? 9-10 mm., 2 immat. o*c? 6 mm., 

 10 $$ 7-9 mm., 10 juv. 4-5 mm. (lakes, 

 300-350 ft. alt.). 



Remarks. The maxilliped in both sets of specimens 

 agrees with Monod 's figure in having the palpal joints g ^ 



broad and stout. Possibly Ortmann's figure was drawn pig ^ Hyalella patagonica> Qrtm , 

 from a specimen not fully flattened out, which would Dorsal view of left uropod 3 of: a. Speci- 

 account for the narrowness of these joints. In other men from shore, b. Specimen from 

 respects the coastal specimens agree with Ortmann's lakes - 

 figures. 



On the other hand, the specimens from the lakes at a higher altitude, while agreeing 

 in most respects with the coastal specimens, differ in two* respects. The 3rd uropod is 

 slightly longer and less robust, the outer margin of the peduncle being straight instead of 



