386 



IDOTEIM. 



ISOPODA. 



NORMALIA. 



IDOTEID^E. 



IDOTEA EMARGINATA. 



Specific character. Elongate-ovate, sub-convex, finely dotted. Front of 

 head slightly emarginate. Anterior lateral angles rounded. Coxa 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 antennae nearly one-third of the length of the animal. 



Length, one inch and one-sixth. 



Cymothoa emarginata. 

 Idotea emarginata. 



(?) Squilla marina. 

 Idotea excisa. 



Idotea peloponesiaca. 

 Idotea oestrum: 



FABRICIUS, Ent. Syst. ii. p. 508. 



FABRICIUS, Ent. Syst. Suppl. p. 303. MILNE 



EDWARDS, Crust, iii. p. 130. CUVIER, Regne 



Anim. (Ed. Crochard), t. 69, f. 2. WHITE, 



B. M. Cat. Brit. Crust, p. 65. Pop. Hist. 



Brit. Crust, p. 224. Risso, Crust, de Nice, 



p. 135. 



DE GEER, Ins. vii. p. 522, t. 32, f. 11, 14. 

 Bosc. Crust, ii. p. 181. LATREILLE, Hist. Nat. 



Crust, et Ins. vi. t. 58, fig. 5. Var. (?) 

 Rom. Crust. Med. t. 30, f. 10. 

 PENNANT, Brit. Zool. 4, pi. 18, f. 6. LEACH, 



Trans. Linn. Soc. xi. p. 565. DESMAREST, 



Crust, p. 289. 



