CATALOGUE OF BKITISH CRUSTACEA. 97 



Lynceus macrourus, Midler, Ent. p. 77, t. 10, f. 1 4; M. Edw. 

 Crust, iii. p. 388. 



a k. Highgate, Richmond, near London. Presented by Dr. Baird, 

 F.L.S. 



4. ACKOPERUS. 



Acroperus, Baird, Ann. fy Mag. N. Hist. xi. ; Brit. Entom. p. 129. 

 Lynceus, pt., Baird, Proc. Berw. Nat. Club, i. 



ACROPERUS HARP.E. Harp-shaped Water-flea. 



Acroperus harpse, Baird, Ann. $~ Mag. N. Hist. xi. p. 91, t. 3, f. 7; 

 Proc. Berw. Nat. Club, ii. p. 151 ; Brit. Entom. p. 129, t. 16, f. 5. 

 Lynceus harpae, Baird. Proc. Berw. N. Club, i. p. 100, t. 2, f. 17. 

 Lynceus leucocephalus, Koch, Deutsch. Crust, p. 36, t. 10. 



a e. Near Richmond. Presented by Dr. Baird. 



Osterly Park. 



Yetholm. 



Dunglass. 



2. ACROPERUS NANUS. Dwarf-harp Water-flea. 



Acroperus nanus, Baird, Ann. fy Mag. N. Hist. xi. p. 92, t. 3, f. 8 ; 

 Proc. Berw. Nat. Club, ii. p. 151 ; Brit. Entom. -p. 130, t. 16, f. 6. 



Norwood and Southall, near London. 



5. ALONA. 



Alona, Baird, Ann. fy Mag. Nat. Hist. xi. ; Brit. Ent. p. 131. 

 Lynceus, Midler, sp. 



1. ALONA QUADRANGULARIS. Square Water-flea. 



Alona quadrangularis, Baird, Ann. fy Mag. Nat. Hist. xi. p. 92, t. 



3, f. 9 11 ; Proc. Berw. Nat. Club, ii. p. 151 ; Brit. Entom. 



p. 131, t. 46, f.4. 

 Lynceus quadrangularis, Midler, Ent. p. 72, t. 9, f. 1 3 ; M . Edw. 



"Crust, iii. p. 388 ; Koch, Deutsch. Crust, f. 36, t. 15. 



K 



