Thomson. — On Netu Zealand Orchestidae. 203 



6. Orchestia tumida, G. M. Thomson. 



1885. Talorchestia tumida. 



1885. G. M Thomson, N.Z. Journ. Sc, vol. 2, 



p. 577. 



1886. G. M. Thomson, MS. (Stebbing), Proc. Zool. 



Soc. Lond., p. 5. 



1886. Thomson and Cliilton, Trans. N.Z. Inst., 



vol. 18, p. 145. 



1887. Stebbing, Trans. Zool. Soc. Lond., vol. 12, 



p. 202. pi. 39, fig. A. 

 1889. G. M. Thomson, Trans. N.Z. Inst., vol. 21, 

 p. 260, pi. 13, figs. 4-8. 



1892. Chilton, Trans. N.Z. Inst., vol. 24, p. 259. 



1885. Talorchestia cookii. 



1885. Filhol, Miss, de I'ile Campbell, p. 459, pi. 53, 



fig. 4. 



1893. Orchestia cjavwiarellus. 



1893. A. Delia Yalle, Gam. d. G. d. Napoli, p. 501. 



Body more or less tumid, sometimes in old males nearly 

 globular; reaching to 14 mm. in length. Limbs rather thickly 

 furnished with spines. Second antennae spreading away from 

 one another, very short, not one-fourth as long as the body. 

 Coxal plates of 2nd gnathopoda and first pereiopoda with 

 the posterior margin straight. In the males the rugose pro- 

 cesses on the 1st gnathopoda are scarcely visible ; the 2nd 

 gnathopoda have a very tumid propodos, palm very oblique, 

 occupying two-thirds of the lower margin and with a rounded 

 protuberance near the hinge. The 4th pereiopoda (not the 

 5th) in old males have the meros and carpos dilated. Pleo- 

 poda normal. 



Hah. — On sandy beaches and sandhills, usually at some 

 distance from the sea. 



Locality. — At numerous points on the coast, from Wai- 

 wera to Stewart Island. 



7. Orchestia sylvicola, Dana. 



1852. Orchestia sylvicola. 



1852. Dana, Proc. Amer. Ac. Arts Sc, vol. 2, p. 202. 

 1852. Dana, U.S. Exped., p. 873, pi. 59, figs. 2, 3. 

 1862. Bate, Cat. Brit. Mus., p. 21, pi. 3, fig. 7. 

 1876. Miers, Cat. N.Z. Crust., p. 122. 

 1881. G. M. Thomson, Trans. N.Z. Inst., vol. 18, 

 p. 209, pi. 7, fig. 4. 



1886. Thomson and Chilton, Trans. N.Z. Inst., 



vol. 18, p. 145. 



