[Proc. Eot. Soc. Victoria, 22 (N.S.), Pt. I., 1909] 



Art. III. — Description of Tivo Terrestrial Species of 

 Talitriclae from Victoria. 



By 0. A. SAYCE. 



(With Plates XL, XII.) 

 [Read 13th May, 19u9.] 



The only terrestrial x\mphipod so far recorded as occurring 

 in Australia and Tasmania is Talitrus sylvaticus, Haswell. I 

 have received specimens from New South Wales, Tasmania, and 

 many parts of Victoria, ranging from the seaboard to the tops 

 of our highest mountains, and they all agree closely with one 

 another morphologically. The original description is somewhat 

 meagre in the light of what is now known of the genus, so that 

 I have in this treatise more fully described it. 



Another well-defined species referable to the same genus is 

 to be met with commonly throughout the forest lands of Vic- 

 toria, outside of which it has not so far been found. I here- 

 with give a description of it. 



The characters of each of these species are mostly in close 

 agreement with other members of the genus Talitrus, the most 

 important variation being in the shape of the palp of the 

 maxillipeds, which possesses a rudimentary but definite fourth 

 joint, clearly marked off from the preceding one by a line of 

 articulation in T. sylvaticus, whereas in T. kershawi it is 

 coalescent, but of the same conical shape and tipped with a 

 single long spinule. Another character of difference worthy 

 of note is that the carpal joint of the first gnathopod is some- 

 what expanded, whereas typically it is elongated and linear in 

 form. 



