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CATALOGUE OF BRITISH CRUSTACEA. 
1. CETOCHILUS. 
Cetochilus, Roussel de Vauzeme, Ann. Sc. Nat. 2 me ser. i. p. 333. 
1. Cetochilus septentrionalis. Whale Long-shrimp. 
Cetochilus septentrionalis, Goodsir, Edin. New Phil. Juurn. xxxv. 
p. 336, t. 6, f. 1 — 11 ; Thomp. (IF.) Ann. Nat. Hist. xx. p. 247 ; 
Baird , Brit. Ent. p. 235, t. 29, f. 1 ag. 
a. Firth of Forth. Presented by Henry Goodsir, Esq., Surg., R.N. 
1. NOTODELPHYS. 
Notodelphys, Allman , Ann. Mag. Nat. Hist. xx. p. 2 (1847). 
1. Notodelphys ascidicola. Allman’s Notodelphys. 
Notodelphys ascidicola, Allman, Ann. Mag. Nat. Hist. xx. p. 2, 
1, 2, f. 1—28 ; Baird, Brit. Ent. p. 238, t. 30, f. 7, 8. 
a — d. Ireland (in the branchial sac of Ascidia communis). Pre- 
sented by Dr. Allman. 
