CATALOGUE OF BRITISH CRUSTACEA. 121 



4. LEPEOPHTHEIRUS HIPPOGLOSSI. Halibut Fish-louse. 



Lepeophtheirus Hippoglossi, Baird, Brit. Ent. p. 276, t. 32, f. 12. 

 Caligus Hippoglossi, Kroyer, Nat. Tidsk. i. p. 625, t. 6, f. 3, $ . 

 Caligus hippoglossis, M. Edw. Crust, iii. p. 456. 

 Binoculus piscinus, O. Fabr. Faun. Gr. p. 239. 



(tj. Berwick Bay (on Halibut). Presented by Dr. Baird. 



5. LEPEOPHTHEIRUS OBSCURUS. Brill Fish-louse. 



Lepeophtheirus obscurus, Baird, Brit. Ent. p. 277, t. 32, f. 11. 

 Belfast Bay (on Brill). 



6. LEPEOPHTHEIRUS THOMPSON i. Turbot Fish-louse. 



Lepeophtheirus Thorn psoni, Baird, Brit. Ent. p. 278, t. 33, f. 2. 

 Ireland (on Turbot). 



1. CHALIMUS. 



Chalimus, Burm. Nov. Act. Cur. Bonn. xvii. 



1. CHALIMUS SCOMBRI. Long-snouted Sucker. 



Chalimus scombri, Burm. Nov. Act. Nat. Cur. xvii. p. 294, t. 13, f. 

 13, 18; M. Ediv. Crust, iii. p. 457 ; Kroyer, Nat. Tidsk. ii. p. 20, 

 t. 1, f. 1 ; Baird, Brit. Ent. p. 279, t. 33, f. 5, 5 a b. 



Ireland (Belfast Bay). 



1. TREBIUS. 



Trebius, Kroyer, Nat. Tidsk. ii. 



1. TREBIUS CAUDATUS. The Skate Fish-louse. 



Trebius caudatus, Kroyer, Nat. Tidsk. ii. p. 30, t. 1, f. 4 ; M. Edw. 

 Crust, iii. p. 458 ; Thomp. Ann. fy Mag. Nat. Hist. xx. p. 248 ; 

 Baird, Brit. Ent. p. 280, t. 33, f. 3, 4. 



a d. On " Sharp-nosed Ray." Old collection. 

 e g. Ireland (Belfast Bay, on Skate). Presented by W. Thomp- 

 son, Esq. 



M 



