386 _ TIDOTEIDA. 
ISOPODA. IDOTEID. 
NORMALIA, 

IDOTEA EMARGINATA. 
Specific character. Hlongate-ovate, sub-convex, finely dotted. Front of 
head slightly emarginate. Anterior lateral angles rounded. Coxe of the six 
hind pairs of legs strongly developed on the dorsal side of the body. Pleon 
with the third segment confluent in the middle with the fourth, which has the 
two posterior-lateral angles produced, the space between them emarginate. 
Lower antennz nearly one-third of the length of the animal. 
Length, one inch and one-sixth. 
Cymothoa emarginata. Faxsrictus, Ent. Syst. ii. p. 508. 
Idotea emarginata. Fasricius, Ent. Syst. Suppl. p. 303. Minne 
Epwarpbs, Crust. iii. p. 130. Cuvimr, Régne 
Anim, (Ed. Crochard), t. 69, f. 2.  Wuutrn, 
B. M. Cat. Brit. Crust. p. 65. Pop. Hist. 
Brit. Crust. p. 224. Russo, Crust. de Nice, 
p. 135. 
(2) Squilla marina. Dr Gur, Ins. vil. p. 522, t. 32, f. 11, 14. 
Idotea excisa. Bosc. Crust. ii, p. 181. Larreruye, Hist. Nat. 
Crust. et Ins. vi. t. 58, fig. 5. Var. (2) 
Idotea peloponesiaca. Rom. Crust. Med. t. 30, f. 10. 
Idotea cestrum. Pennant, Brit. Zool. 4, pl. 18, f. 6. Lmacu, 
Trans. Linn. Soc. xi. p. 565. Dusmanest, 
Crust. p. 289. 
ella 
