— 
TANAIS VITTATUS. 125 
ISOPODA. TANAID&. 
ABERRANTIA. 

TANAIS VITTATUS. 
Specific character. Body rather short, with the segments of the pleon 
clothed with transverse fascicles of long fine hairs. Superior antennz 
thicker and longer than the inferior, three-jointed, setose at the tip. Ce- 
phalon and first segment of the pereion mottled with dark lines, forming oval 
patches; second pair of gnathopoda shorter than the following, several of 
the posterior pairs of legs terminated by a sickle-shaped finger, with a tooth at 
the middle of its inner edge, and serrated along the base. 
Length two lines and a quarter. 
Crossurus vittatus. RatuKe, Nov. Act. 20, pl. i. fig. 7. 
Tanais vitiatus. Litusesore, Bidrag till Kannedomen om de inom 
Sverige och Norrige Férekommande crust. af Isop. 
underord. och Tanaid, famil. p. 24. 1864, Upsala. 
Tanais de Costa (2). Anpovurn and Epwarps, Résumé d’Entomologie, t. i. 
pl. xxix. fig. 1. 
Tanais Cavolini (2). Epwarps, Hist. Nat. Crust. iii, p. 141, pl. xxxi. 
fig. 6. 
Notrwitustanpine the Gulf of Naples is given by 
Professor Milne Edwards as the habitat of T. Cavolinit, 
