SEA-FISHERIES LABORATORY. 157 
Hauls taken further North, on the other side of Skye, 
in the Sound of Raasay, off Longa Island and off the 
Croulins, from depths of 106, 116 and 133 fathoms, are 
all mainly zoo-planktonic, although not very large or 
characteristic in appearance. Some catches are coarser 
and some finer, some have more Calanoid Copepoda and 

Fia. 8.—A phyto-plankton gathering from Fig. 9.—A mixed plankton, showing 
the sea round Canna, showing Chaetoceras. both Diatoms and Animals. 
[From photo-micrographs by Mr. Edwin Thompson. | 
Sagitta and Medusae, others have more of the smaller 
Copepoda (Acartia, Pseudocalanus, Temora, &c.) such as 
are shown in fig. 10; but there does not seem to be the 
constancy of character obtained in some other West 
Highland localities—except that all contain species of 
