94 
CRUSTACEA. 
Pallas, aSjmc. Zool. ix. 64, t. 5, /. 1-6. Entomon pyramidale, 
Klein, f. 1-3. Squilla e., Degeer, Ins. vii. 514, t. 32, /. 1-10. 
Far.,Oniscus marinus, Penn. Brit. Zool. iv. t. 18,/. 3. 
Saduria entomon, Leach. MSS. 
a — -d. Young. Northern Sea. 
e. Adult. Northern Sea. 
Idotea caeca, Say, Journ. Acad. Sc. Phil. i. 424. 
a — e. United States. Presented by Thomay Say, Esq. 
Idotea pelagica, Leach. Linn. Trans, xi. 365. Desm. Cons. 289. 
Edw. Crust, iii. 129. Oniscus balticus, Pall. Spic. Zool. ix. t. 
4,/. 6 ? Idot. marina., Fab. Ent. Syst. Suppl. 303 ? Rhaetia 
pel., Leach, MSS. 
a — g. British Coast. From the collections of Dr. Leach and 
Colonel Montagu. 
Idotea tricuspidata, Desm. Cons. 289. Roux, Crust. Med. t. 13. 
/. 11, 12. Edw. Crust, iii. 129. Oniscus tridens, Scop. Ent. 
Cam. Id. entomon, Leach, Linn. Trans, xi. 364. Id. tri- 
dentata, Latr. Gen. Crust, et Ins. i. 64. 
a — z. British Coast. From the collections of Dr. Leach and 
Colonel Montagu. 
Idotea variegata, Roux, Crust. Med. t. 30,/. 1. Id. tricuspidata, 
var. ? 
a—f. Mediterranean (Genoa). 
g. Sicily. 
Idotea emarginata, Fabr. Ent. Syst. Suppl. 303. Edwards, 
Crust, iii. 130. Cur. R. A. ( Croch.) t. 69,/. 2. Cymothoa e., 
Fabr. Ent. Syst. ii. 508. Squilla marina, Degeer, Ins. vii. 
522, t. 32,/. 11, 14. Idot. excisa, Bose, Crust, ii. 181. Lair. 
Crust, vi. t. 58, /. 5. var. ? Idot. peloponesiaca, Roux, Crust. 
Med. t. 30,/. 10. 
a. Mediterranean. 
b — t. British Coast. From the collections of Dr. Leach and 
Colonel Montagu. 
Idotea linearis, Latr. Hist. Crust, vi. 371. Edw. Crust, iii. 132. 
Onisc. entomon., Raster, Opusc. Subs. ii. t. 13, /. 2. Onisc. 
lin., Penn. Brit. Zool. iv. t. 18,/. 2. Squilla marina, Degeer, 
Ins. vii. t , 32,/. 11. Stenosoma lin., Leach , Linn. Trans, xi. 
366. Desm. Cons. 290, t. 46,/. 12. 
a — c. Europe. 
d — o. Devon (Ilfracombe). From the collections of Dr. Leach 
and Colonel Montagu. 
Idotea irrorata, Edw. Crust, iii. 132. Stenosoma irr. , Say, 
Journ . Acad. Sc. Phil. i. 423. 
