128 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



while those here referred to were collected from July 

 1896 to March 1897. We have thus a year's continuous 

 series of material to report upon which should enable us 

 to obtain a fair knowledge of the distribution of the free- 

 swimming Copepoda of this district. 



Mr. Browne informs, me that the tide flows into 

 Valencia Harbour from the ocean at a good pace. Two 

 knots is the speed marked on the chart, being strong 

 enough to keep the tow-net fully extended from a boat at 

 anchor. The average depths to which the tow-net was 

 lowered are given, but the results do not appear to show 

 any great difference in the fauna at the bottom and at the 

 top, possibly to be accounted for by the fact that the tide 

 runs through a narrow entrance and the water is well 

 stirred up. 



All the material collected for examination was im- 

 mediately preserved in Formaline. A 5% solution appears 

 to be the strength best suited for these small delicate 

 crustaceans, and is probably as efficient a preservative 

 as is known. 



Notes on the Species Found. 



Calanus finmarchicus and Clausia elongata were found 

 in all the bottles and were generally the prevailing forms. 

 The much rarer Calanus propinquus occurred very 

 sparingly during January and February. It differs from 

 C. finmarchicus chiefly in the profusely plumose character 

 of the setae, and in the 5th swimming feet, and the diverging 

 caudal segments of the male. 



Pseudocalanus armatus was found but on one occasion 

 (Feb. 27th) and then only one specimen. 



Temora longicornis was generally abundant up to the 

 end of October, but was not found during the mid-winter 

 months, occurring again sparingly in February, and 



