Phyllopoda of Australia. 231 



I am informed by a resident of Murchison that the water of 

 Lake Aurean, from whicli this species was taken, is always more 

 or less brackish, but never very salt. During the rainy season it 

 is quite lit for cattle to drink. In the same bottle as contained 

 the specimens there was a specimen of Apus australiensis and a 

 new species of Estheria, described later in this paper, all, accord- 

 ing to the label, collected from the same place at the same time. 



Unrecognisable Species. 

 Aptemia ppoxima, King. 



J^ef. — Proc. Royal Soc. Van Diemen's Land, 1855, p. 70. 

 Trans. Entom. Soc. New South Wales, I., p. 162, pi. xi. 



No figure except a branchial leg of the fifth pair has been 

 published, and the few words of description are quite meaning- 

 less. The specimens were collected from salt pans at Newington, 

 near Sydney. 



Genus 2 — Paraptemia, nov. 



Body slender ; tail slender and elongated, of eight segments, 

 the terminal one long ; caudal rami not articulated to the 

 terminal segment, of flattened form and very short. 



Prehensile antennae of male large ; first joint short and very 

 stout, directed obliquely outwards, inner margins definitely 

 formed, so that the pair together fit closely over the back of the 

 female during copulation, also on the frontal face of each an 

 immovable spiniform process, presumably homologous with the 

 frontal appendages of other genera ; second joint quite simple, 

 claw-shaped, incurved, slender, and of firm consistency. 



Branchial feet with the normal number of parts ; distal lobe 

 of endopodite, short and rather broad, produced somewhat 

 laterally, but apparently not so much as in Artemia ; exopodite 

 narrow. Last pair without covering plate or gill. 



Ovisac of female very short and broad, of trilobate form, due 

 to two very large lateral saccular lobes narrowly united ventrally, 

 and medianly therefrom abruptly arising a short and stout neck. 



Re /narks. — This new genus is formed to receive the following 

 new species. It agrees in many respects with Artemia, but 



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