Akt. VI. — Description of some Neiv Victorian FresJt- 

 water Amjphipoda, No. 2. 



By O. a. SAYCE. 



(With Plates IV., V., VI., VII.). 



[Read 12th June, 1902.] 



In last year's Proceedings I described four new species of fresh- 

 -water Victorian Aniphipoda.^ Since then I have received addi- 

 tional material through the kindness of friendly collectors, and 

 &xa now able to add four more hitherto undescribed species from 

 our State. Amongst these one is of especial interest, inasmuch 

 as, although an inhabitant of surface-waters, it is totally without 

 eyes, and is comparable in this respect to another of our local 

 species (Niphargus pulchellus) described by me in these 

 Proceedings.^ 



In addition to the descriptions of the new species, I have given 

 further information concerning some of those described in my 

 last paper, and have adduced evidence of the migration of the 

 genus Chiltonia. 



Chiltonia austral is, Sayce. 



Hyalella australis, Sayce. Proc. Roy. Soc. Vict., xiii., 

 pt. 2, pp. 226-230, pi. xxxvi. 



Rev. T. R. R. Stebbing, F.R.S., recently'^ established the 

 genus Chiltonia for Dr. Chilton's Hyalella mihiwaka, from New 

 Zealand, and, although the characters of my H. australis are not 

 quite in agreement with his generic description, notably in the 

 terminal rudimentary uropods being two, not one-jointed, I think 

 it bettter to unite it with the New Zealand form. 



1 Proc. Roy. Soc. Victoria, vol. .\iii., pt. ii., pp. 225-242. 

 ■i Proc. Roy. Soc. Victoria, vol. xii., pt. ii., pp. 152-159. 

 3 Trans. Linn. Soc. Londoa, vii., pt. 8, p. 408. 



