35 



Grubia setosa (Haswell). 



Amphithoe setosa, Haswell, 1879, p. 270: Chilton, 1885, 

 p. 1040. 



Gruhia setosa, Stebbing, 1906, p. 644, and 1910, p. 649. 



Locality/. — Mangrove Creek, Smoky Bay. Several 

 specimens. 



I refer these specimens to the species named with some 

 doubt, for they are all small and immature, and the species 

 itself is imperfectly known. The typical species of the genus, 

 G. crassicornis, is known from the Mediterranean and the 

 Black Sea, and a South African one has been described by 

 Barnard under the name G. australis. It will be necessary 

 to compare adult specimens of these three species before any- 

 thing can be said about their affinities. 



ISOPODA. 

 Deto marina (Chilton). 



Beto marina, Chilton, 1915, p. 444, pi. 39, figs. 19-23. 



Beto marina, Chilton, 1917, p. 399, figs. 15-21. 



Localities. — Smoky Bay, 21-xi.-20. Two specimens. 



Laura Bay, 23-xi.-20. Five specimens. Eyre Island, Smoky 

 Bay, 21-xi.-20, Several specimens. Unnamed guano island, 

 Laura Bay, 22-xi.-20. Two specimens. 



This species was originally described under the name 

 Philougria marina from specimens collected at Coogee, New 

 South Wales, in 1884. No further specimens were obtained 

 from the type locality until towards the end of 1920, when 

 several were obtained by Mr. F. A. McNeill, of the Aus- 

 tralian Museum, Sydney. It had been collected at Kangaroo 

 Island, South Australia, by W. H. Baker, in 1915 ; and I have 

 since had specimens from Tasmania, collected by A. M. Lea, 

 of the Adelaide Museum. Apparently it is fairly common 

 in the localities examined by Professor F. Wood Jones, and 

 w^as obtained at the four places mentioned above. The speci- 

 mens agree closely with the description given of those from 

 Kangaroo Island. 



Mr. F. A. McNeill, who collected the specimens from 

 Coogee, states that they were found on the damp under- 

 surfaces of stones which formed heaped accumulations of small 

 sandstone boulders at highest tide mark, and ended among the 

 dark crevices and overhanging shelves of larger rocks, from 

 10 to 15 ft. further back. He further states that the animals 

 are ''slow in movement, often lying motionless in the 

 irregularities on the surface of the stones; the older examples 

 rarely move away until disturbed previous to capture," and 

 he contrasts their slow movement with the active movements 

 of Ligia australiensis, which was found at the same time and 



