RAPPORTS. XIII C 1 et 3, Appendice — 12 — EGGS OF FISHES 



VI: 0.93). Only black pigment, extremely delicate. Notochord unicolumnar. 

 Clupeid anus. Spawning-time: III to VIII. 



Coasts of the North Sea, Skager Rak, Channel and the Atlantic. 



Clupea sprattus L. 

 ß. Yolk of egg homogenous. 



a. Small egg of 0.66 to 0.98 (II: 0.85, III: 0.84, IV: 0.82, V: 0.78, VI: 

 0.76, VII: 0.74). Pigment lemon-yellow and black, delicate; pleuronectid 

 anus. Spawning-time: I to IX. 



North Sea, Atlantic coasts, Skager Rak. Pleuronectes limanda L. 



b. Small egg of 0.82 to 1.13 (II: i.oo, III: 0.975, IV: 0.92). Pigment 

 chrome-yellow and black, strong: pleuronectid anus. Spawning-time: 

 I to IV. 



Coasts of North-West Europe. Pleuronectes flesus L. 



c. Small egg of 0.72 to 0.94 (VI: O.87, VII: 0.82, VIII: 0.81). Only black 

 pigment, delicate. Anus some distance behind the yolk-sac; notochord 

 unicolumnar. Occurring only in the neigbourhood of rocky coasts. 

 Spawning-time: V to VIII. 



Channel, West European coasts. Labrus rupestris L. 



d. Small egg of O.80 to 0.88 with sparse, black pigment, not extending on 

 to the yolk-sac. Gadoid anus. Occurring only over great depths. 

 Spawning-time: V (?). 



Norwegian Channel, Atlantic. *Phycis blennoides Brunn. 



e. Small egg of 0.95 to 1.07. Pigment black and yellow, the latter also 

 on the yolk-sac. Gadoid anus. Spawning-time: III to VI. 



Channel, North Sea, coasts of North- West Europe. 



*Gadus ininutus 0. F. Müller. 



f. Small egg of O.97 to 1.23 (XII: l.io). Pigment black, with scattered 

 chromatophores radiating out on to the yolk; of yellow pigment only 

 a faint shimmer. Gadoid anus. Spawning-time: XII to IV. 



Channel, South-West North Sea, British west coasts. Gadus htscus L. 



g. Small egg of 1.0 to 1.13 (II: 1.084, ^'- i-o7)- Only black pigment, 

 not extending on to yolk. Gadoid anus. Spawning-time: I — IV. 



Central and Northern North Sea, Skager Rak, Atlantic. 



Gadtis esinarki Nilss. 

 h. Egg of medium size, 1.03 to 1.22 (III: 1.15, IV: 1.12). Only black pig- 

 ment, scattered chromatophores on the yolk. Gadoid anus. The eggs 

 occur mostly over depths of about 150 to 200 m., seldom over less 

 than 100 m. Spawning-time: I— IV. 



Northern North Sea, Skager Rak, Atlantic. Gadus virens L. 



i. Egg of medium size, l.lOto 1.22. Pigment probably only black. Gadoid 

 anus. The eggs probably occur in the neighbourhood of rocky ground. 

 Spawning-time: II — IV. 



Channel, British (and Scandinavian) coasts. *Gadtis pollachius L. 

 k. Egg of medium size, 0.97 to 1.32 (II: 1.21, III: 1.18, IV: 1,13, V: l.io, 



