SEA-FISHERIES LABORATORY. 151 
plankton. Diatoms mainly neritic; very large numbers 
of Chaetoceras curvisetum, and many C. debile and 
C. contortum, &c.; also some Guinardia, Lauderia, and 
Thalassiosira. A few oceanic species, e.g., Chaetoceras 
‘8 
decipiens. [Neritic in type. | 
(8) Vatersay Sound, Barra, surface; July 12th, 
1910.—A fair amount of zoo-plankton. Diatoms on the 
whole oceanic; Chaetoceras decipiens, Rhizosolenia spp., 
Corethron; a few neritic. [Oceanic in type. | 
IX. Sounp oF SLEAT. 
(1 and la) Loch Nevis, 70 fm.; July 17th, 1908.— 
Two hauls, chiefly zoo-plankton. Duiatoms few, a fair 
number neritic, but probably more oceanic. [? Mainly 
oceanic in type. | 
(2) Loch Nevis, 75 fm.; July 14th, 1909. 
above, with greater number of Schizopods. [| ? Oceanic. | 

Same as 
(3) Loch Hourn, 45 fm.; July 17th, 1908.—More 
zoo- than phyto-plankton. Diatoms mostly neritic; 
Biddulphia mobiliensis, Chaetoceras curvisetum, C. con- 
strictum, Thalassvosira. Few oceanic. [Mainly neritic 
in type. | 
(4) Loch Hourn, 73 fm.; July 17th, 1908.—Much 
the same; possibly more zoo-plankton. 
(5) Loch Hourn, 78 fm.; July 17th, 1908.—Much 
the same as above. 
(6) Loch Hourn (Hensen net), 43 fm.; July 17th, 
1908.—Much the same as above. 
(7) Loch Hourn, 76 fm.; July 15th, 1909.—A much 
greater proportion of phyto-plankton. A large number 
of oceanic species. [Mainly neritic in type, but with a 
large admixture of oceanic. | 
(8) Loch Hourn, near Beacon, 90 fm.; July 15th, 
