of the Fishery Board for Scotland. 



91 



The species whose ovaries and eggs have been studied comprise the 

 following : — 



A. — With Dispersed Pelagic Eggs. 



Grey Gurnard {Trigla gurnardus). 

 Red Gurnard {Trigla cucidus). 

 I^esser Weever (Trachinuf^ vipem). 

 Mackerel (Scomber scomber). 

 Dragonet (Callionymtn^ lyra). 

 Cod (Gadus morrhua). 

 Haddock (Gadus ceglefinus). 

 Bib (Gadus luscus). 

 AVhiting (Gadus merlangus). 

 Saithe (Gadus virens). 

 Ling (Molva vulgaris). 

 Four-Bearded Rockling (Motella 



cimbria). 

 Tusk (Brosmius brosme). 

 Halibut (Hippoglossus vulgaris). 

 Long Rough Dab (Hippoglossoides 



platessoides). 



Turbot (Rhombus maximus). 

 Brill (Rhombus Icevis). 

 Sail - Fluke (Arnoglossus mega- 

 stoma). 



Plaice (Pleuronectes iMessa). 

 Lemon Dab (Pleuronectes micro- 



cephalus). 

 Witch (Pleuronectes cynoglossus). 

 Common Dab (Pleuronectes li- 



manda). 

 Flounder (Pleuronectes flesus). 

 Sole (Solea vulgaris). 

 Solenette (Solea lutea). 

 Norwegian Topknot (Zeugopterus 



norvegicus). 



B. — With Floating Eggs Imbedded in Mucus. 

 Angler or Monk (Lophius piscatorius). 

 C. — With Demersal Eggs. 



Short - S pined Cottus (Cottus 



scorpius). 

 Long - Spined Cottus (Cottus 



bubalis). 

 Pogge {Agonus cataphractiis). 

 Lumpsucker (Cyclopterus lurnpus). 

 Diminutive Sucker (Liparis mon- 



tagui). 



Catfish (Anarrhichas lupus). 

 Lesser Sand-Eel (Ammodytes 



Smelt (Osmerus eperlanus). 

 Herring (Clupea harengus). 



The immature ovaries of the common eel (Anguilla vulgaris) and of the 

 John Dory (Zeus faber) were also examined. The latter are described in 

 another place together with those of the angler (see p. 125). The eggs 

 of the eel, according to the recent researches of Grassi and Calandruccio,* 

 are buoyant. 



Stained and mounted sections of the following species were 

 examined : — Haddock, whiting, bib, grey gurnard, plaice, lemon sole, 

 flounder, common dab, witch, sole, solenette, Norwegian topknot, long 

 rough dab, John Dory, sand-eel, gunnel, herring, viviparous blenny, angler, 

 catfish, and common eel. The eggs and portions of ovaries of the follow- 

 ing species were examined microscopically in the living or fresh condi- 

 tion : — Cod, haddock, whiting, ling, saithe, bib, four-bearded rockling, 

 grey gurnard, red gurnard, turbot, brill, halibut, plaice, lemon sole, witch, 

 common dab, flounder, sole, solenette, Norwegian topknot, John Dory, 

 herring, catfish, lumpsucker, pogge, short-spined cottus. 



* The Reproduction and Metamorphosis of the Common Eel. Q%iart. Journ. Micr. 

 Sci., Vol. xxxiii, Part iii. p. 3. 1896. 



