332 ON THE CRUSTACEAN FAUNA OF A 



Macromysis flexuosa, a common littoral species, occurred 

 abundantly; of Melita palmata there were only two immature 

 specimens. Acartia longiremh and Temora longicornis, both 

 of them abundant in the open sea, were here tolerably plenti- 

 ful. Idya furcata, a very common form in tidal pools, was 

 extremely plentiful, with many ovigerous females, among the 

 scanty coating of algae at the shallow end of the pond. Of 

 Ha7-pacticiis chelifer there were only few examples, and of 

 Daphnia pulex only one. How this one managed to get 

 there from its usual fresh-water haunts one can only con- 

 jecture : it was a very robust, deeply coloured specimen, and 

 had doubtless been alive when captured. 



Genus ISIAS, Boeck. 



Isias clavipes, Boeck. 



This species is new to our district, and there is only one 

 previous record of its occurrence on the east coast of England, 

 off Robin Hood's Bay. It is, however, not uncommon off the 

 southern and western coasts. Only one specimen was seen in 

 the Amble gathering. 



Genus CYCLOPINA, Glaus. 



Cyclopina gracilis, Glaus. (Plate lo, fig. 13). 



This is new to the eastern coast, and appears to occur only 

 rarely in other districts. Several specimens were found in the 

 Amble nettings. The figure of the mandible given in the Ray 

 Society monograph of British Gopepoda is not quite correct, 

 and I have here re-figured it. 



Genus BRADYA, Boeck. 

 Bradya minor, T. & A. Scott (Plate 9, figs. 1-3). 



Bradya ininoj; T. & A. Scott. — A revision of the British 

 Gopepoda belonging to the genera Bradya, Boeck, and 

 Ectinosoma, Boeck. (Trans. Linn. Soc, vol. vi., part v., 2nd 

 series, Zoology, 1896). 



The two genera Bradya and Ectinosoma are very closely 

 allied, and are distinguished from each other chiefly by the 



