492 



Part III. — Ttvciitidh Annual Hejiorf 



The Pogge. Agonus catapJimcfiis, L. 



Eighty Pogges have been examined for this paper, and with the 

 exception of eleven they are all from Annan, Solway Firth. Fifty of 

 those from Annan were collected at the end of April and the beginning of 

 May, 1900, and fifteen in September ; ten were from the Firth of Forth, 

 and were collected on May 13th, 1901, while the others were part of a 

 sample of fish sent from the Clyde in the beginning of October last. The 

 food in the stomachs examined consisted almost entirely of Crustacea, and 

 included representatives of the Marrura (Urau(/on ru/ijaris, jun.), the 

 Schizopoda ( Pranitm Jiexuosus), theStomapoda ( Larnpivp!< fa)<dafa), the 

 Isopoda (Lhjthi^a linearis), the Amphipoda (Gatinitaru>< locuda, Glieiro- 

 rrafu.^ inferinedius, Curophium i/rossipet:, DulicMa, etc.), the Copepoda 

 ( Longipedia, Ediiiosotua), the Ostracoda (Paraduxodoma cariabile), and 

 the Cirripedia (Balanm sp., cypris stage). Starfish remains occurred in 

 one or two of the stomachs, and Annelid remains in one. Nearly all the 

 Pogges taken in April and May were infested with what looked like 

 encysted worms ; they occurred in the walls of the body cavity, some- 

 times on one side only, but more frequently on both sides, and in some 

 cases they were present in large numbers. The specimens of Agonus 

 examined ranged in length from 6-j^ cm. to 12| cm., but it was only in 

 the smaller specimens measuring from Gy^ cm. to Sj^- cm. that the 

 Copepoda, Ostracoda, and larval Balani were observed, while Crangoii, 

 Praunus, and others of the "higher Crustacea" were only found in the 

 stomachs of the larger specimens. 



The following is a list of the species of Crustacea found in the stomach 

 of the Pogges : — 



Angler Fish. Lo^ihiiis piscatorms, L. 



Several small Lophiu>< captured off Aberdeen in September, 1900, and 

 measuring fiom 19 to about 30 cm., were examined, but the only food 

 observed consisted of the remains of small fish — both flat tish and round 

 fish. Professor M'Intosh has found a Oottus buhaUs about a foot in 



