LIMNORIA LIGNORUM. 



ISOPODA. 



NORMALIA. 



351 



ASELLlDuE. 



LIMNORIA LIGNORUM (THE GRIBBLE). 



Specific character. Entirely covered with small, setose hairs. Lower an- 

 tenna not longer than the head. Terminal segment of the tail entire, 

 rounded, and flattened, with a slight central dorsal carina, and the lateral 

 margins raised. 



Length, about a line and a half. 

 Cijniothoa Jignorum. Rathke, Skrivt af Naturh. Selsk, vol. 101, t. 3, f. 14 



(1799). 

 Limnoria lig novum. White, Pop. Hist. Brit. Crust, p. 227, iil. 12, f. 5. 

 Limnoria terebrans. Leach, Diet. d. Sci. Nat. art, Cymothoadees, Edinb. 

 Enc. vii. p. 433. Trans. Linn. Soc. xi. p. 371. 

 Suppl. Enc. Brit. 1, 428. Desmarest, Cons. Crust, 

 p. 312. Samouelle, Ent. Compend. p. 109. Cold- 

 stream, in Edinb. New Phil. Journ. xvi.* p. 316, 

 t. 6, f. 1—16. Hope, Trans. Ent. Soc. Lond. 1, 

 p. 119. "W. Thompson, Edinb. New Phil. Journ. 

 xviii. p. 127. Milne Edwards, Crust, iii. p. 145. 

 White, B. M. Cat. Brit. Crust, p. 68. Gosse, 

 Man. Mar. Zool. 1, fig. 242. Westwood, in Gar- 

 dener's Chronicle, 1849, p. 388, fig. annexed. 

 * This and the preceding plate are erroneously lettered " vol. xvii." 



