APPENDIX. 33T 



former move but little, and their shells are as hard as 

 stones. A small Gtlasimus burrows under the 

 ground, and makes himself a subterranean passage 

 from the water to the dry land. The female has 

 verv small claws, but the male has alwavs one verv 

 large pink claw, which is sometimes the right and 

 sometimes the left. 



A large brownish Gexarcinus lives entirely on the 

 land, in holes of his own making ; his gills accord- 

 ingly are not open combs, but consist of rows of 

 bags closely pressed together, and somewhat re- 

 sembling bladders. Hippa adactyJa F. is very frequent 

 here, and keeps itself concealed under the sands on 

 the sea- shore. It was from these that Fabricius, who 

 has given a wrong description of their legs, formed 

 his species Hippa ; Latreille mentions them by the 

 name of Remipes testudinarius. Six kinds of Pagu- 

 riis. Of Crustacea already described, Falcemon hn- 

 gimanus, Alphceus marmoratus, and Squilla chiragra ; 

 the legs of the last are red, and formed like a club ; 

 it uses them as weapons of offence or defence, and 

 inflicts wounds in striking them out by a mechanism 

 peculiar to itself. The number of insects collected 

 on the low land was very small; among them the 

 Staphylinus erytrocephalus, also a native of New 

 Holland ; an Aphodius, scarcely to be distinguished 

 from the Umbatiis Wiedem. of the Cape of Good 

 Hope ; an Eluter of the species Monocrepis ; of Oede- 

 mera, three varieties of the species Dytilus, to which 

 belong the Diyops livida and lineata F. ; two small 



VOL. II. Q 



