CATALOGUE OF BRITISH CRUSTACEA. 
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4. Canthocamptus minuticornis. Small-horned Sea-Vaulter. 
Canthocamptus minuticornis, Baird, Brit. Ent. p. 211, t. 25, f. 3. 
Cyclops minuticornis, Muller, Ent. p. 117, t. 19, f. 14, 15. 
Cyclops inermis, Tilesius, Mem. Acad. Petersb. v. t. 8, f. 9. 
Canthocarpus minuticornis, Baird, Proc. Berw. Nat. Chib, ii. p. 
154. 
Berwick Bay, Dover. 
3. ARPACTICUS. 
Arpacticus, M. Edw. Crust, iii. p. 430. 
Cyclops, pt. Muller, Ent. p. 114. 
Nauplius, pt. Philippi, Arch. 1843, p. 69. 
Harpacticus, pt. Dana. 
1. Arpacticus chelifer. Clawed Sea-water-flea. 
Cyclops chelifer, Muller, Ent. p. 114, t. 19, f. 1 — 3; Baird, May. 
Zool. if Bot. i. p. 328, t. 9, f. 15 — 22. 
Cyclops armatus, Tilesius, Mem. Acad. Petersb. v. p. 366, t. 8, 
’f. 7, 8. 
Cyclops Johustoni, Baird, Proc. Berw. Nat. Club, i. p. 97, t. 2, f. 4. 
Nauplius chelifer, Philippi, Arch. 1843, p. 69. 
Arpacticus chelifer, Baird, Proc. Berw. Nat. Club. ii. p. 154 : Brit. 
Ent. p. 212, t. 29, f. 2, 3. 
Sea-coast (Berwick and Dover). 
2. Arpacticus nobilis. Noble Sea-water-flea. 
Arpacticus nobilis, Baird, Proc. Berw. Nat. Club, ii. p. 155 ; Ann. 
and Mag. Nat. Hist. p. 17, 416, t. 9, f. 5 ; Brit. Ent. p. 214. t. 
28, f. 2, 2 ae. 
Berwick and Dover. 
2. ALTEUTHA. 
Alteutha, Baird, Brit. Ent. p. 216. 
Cyclops, Baird, Mag. Zool. Bot. i. 
