of the Fishery Board for Scotland. 



181 



operations to decaying animal matter, but is ready to attack living 

 organisms should there be a favourable opportunity for doing so. In 

 October last, when examining some specimens of Galeus cams in the Fish 

 Market at Aberdeen, which had just been landed from one of the trawlers, 

 a large male was observed to be infested with small amphipods. These 

 amphipods belonged to the species named above — Callisoma crenata. It 

 was found, on the cioser examination of the fish, that the amphipods had 

 penetrated the skin at the base of and immediately behind the claspers, 

 and were burrowing in crowds in the hole they had formed. The skin 

 and flesh of the fish appeared to be much injured by the parasites. 

 Specimens of the same kind of fish were on one or two subsequent 

 occasions observed to be similarly infested with the Callisoma. 



Laphistius sturionis, Krb'yer. 



This Amphipod has been observed adhering to the cod, and also to the 

 back of the angler, Lophius piscatorius, but only on the surface of the 

 skin, and not, like Callisoma, burrowing in the flesh of the fish. 

 Laphistius has been obtained as a parasite in the Firth of Forth and 

 in the Firth of Clyde. 



The following list contains the names of fishes on which the crustaceans, 

 recorded in the preceding notes, were found : — 



List of Fishes on which Copepod-Parasites have been Found. 



Scientific names. 



Trigla lineata, Gmelin. 

 Trigla cuculus, Linn. 

 Trigla lucerna, Linn. 

 Trigla gurnardus, Linn. 

 Agonns c at aphr actus, Linn. 

 Zeus faber, Linn. 

 Lophius piscatorius, Linn. 

 Gobius minutus, Gmelin. 

 Callionymus maculatus (Bonap.). 

 Cyclopterus lumpus, Linn. 

 Anarrhichas lupus, Linn. 

 Gasterosteus aculeatus, Linn. 

 Gasterosteus spinacliia, Linn. 

 Gadus callarius, Linn. 

 Ga<lus teglejinus, Linn. 

 Gadus minutus, Linn. 

 Gadus merlangus, Linn. 

 Gadus virens, Linn. 

 Gadus pollachius, Linn. 

 Merluccius vulgaris, Cuv. 

 Molua molva, Linn. 

 Onos (Motella) cimbrius, Linn. 

 Brosmius brosme, Cuv. 

 Hippoglossus vulgaris (Flem.). 

 Drepanopsetta platessoides. 

 Bothus (Rhombus) maximus, Linn. 

 Bothus rhombus, Linn. 

 Pleuronectes platessa, Linn. 

 Pleuronectes microcephalus, Don. 

 Pleuronectes cynoglossus, Linn. 

 Pleuronectes limanda, Linn. 



Common names. 



The Streaked Gurnard. 



The Red Gurnard. 



The Sapphirine Gurnard. 



The Grey Gurnard. 



The Pogge. 



The John Dory. 



The Angler. 



The Spotted Goby. 



The Spotted Dragonet. 



The Lump-Sucker or Cockpaidle. 



The Cat, or Wolf-fish. 



The Three-spined Stickleback. 



The Fifteen-spined Stickleback. 



The Cod. 



The Haddock. 



The Poor or Power-cod. 



The Whiting. 



The Cod-fish or Saithe. 



The Pollack or Lythe. 



The Hake. 



The Ling. 



The Four-bearded Rockling. 



The Torsk or Tusk. 



The Halibut. 



The Long-Rough Dab. 



The Turbot. 



The Brill. 



The Plaice. 



The Lemon Dab. Lemon Sole. 

 The Pole Dab. Witch Sole. 

 The Common Dab. 



