SEA-FISHERIES LABORATORY. 125 



Solea vulgaris, Quen. — Sole. 



The characteristic pelagic eggs of the sole were only 

 observed in five samples of plankton, and with one exception 

 the numbers present were quite small. They were first found 

 twenty-four miles W.N.W. from Piel Gas Buoy on May 5th. 

 This collection was estimated to contain three thousand 

 six hundred sole eggs. Plankton collected nine days later 

 at almost the same place had only one sole egg. Four sole eggs 

 were observed in a sample collected thirteen miles S.W. from 

 Morecambe Bay Light Vessel on May 14th. They were present 

 in Carnarvon Bay on May 27th and June 4th. 



Solea lutea, Risso — Solenette. 



Small pelagic eggs with many oil-globules, which were 



identified as those of the solenette, were found in plankton 



collected in Carnarvon Bay on May 15th and 27th, and on 



June 3rd. They occurred near the Causeway Buoy in Cardigan 



Bay on June 4th and in Tremadoc Bay on July 6th. They 



were also present off Nelson Buoy on May 24th and on June 



12th. 



Trigla gurnardus, Linn. — Grey Gurnard. 



Trigla cuculus, Linn. — Red Gurnard. 



Trigla lucerna, Linn. — Yellow Gurnard. 



The pelagic eggs of the three common species of Gurnard 

 were almost certainly present in the plankton collected by the 

 steamer in 1913, but as the sizes of the eggs of the three species 

 overlap, it is quite impossible to separate them. Gurnard eggs 

 were first observed in plankton collected nine miles S. of South 

 Stack on April 3rd. They were afterwards present at the 

 following stations : — five miles N.W. by N. from Peel, Isle 

 of Man, on May 7th ; thirteen miles S.W. from Morecambe 

 Bay Light Vessel on May 14th ; in Carnarvon Bay on May 15th 

 and 27th ; in Cardigan Bay on May 21st ; in Red Wharf Bay 

 and six miles N. of Great Orme's Head on May 29th. 



