MARINE BIOLOGICAL STATION ON PUFFIN ISLAND. 17 



followin.cj morning (after landing some beds, chairs, dredges, 

 and otlier supplies for the Biological Station), the various 

 sections of the part}^ were gathered from Puffin Island, 

 Beaumaris, and Bangor in time for breakfast on board the 

 steamer. There were nearly thirty biologists in all (the 

 largest number we have yet had on one of these cruises), 

 including Mr. N. Rundell, Secretary of the Salvage As- 

 sociation, Captain Young, who had been with us on seve- 

 ral previous " Hv?ena" trips, representatives from Owens' 

 College, Manchester ; University College, Liverpool ; the 

 Manchester Museum ; Edinburgh University ; University 

 College, Bangor ; Firth College, Sheffield ; and other 

 naturalists from Liverpool, Manchester, Chester, Sheffield, 

 and Southport. 



It had been proposed to explore the northern coast 

 of Anglesea, but the weather was so bad and the 

 sea so rough in the direction of Point Lynas that, after 

 a few hauls of the dredge off the north side of the 

 South Spit, Puffin Island, the plans were altered and a 

 start was made in the opposite direction. In passing up 

 the Straits some dredging was done off Lleiniog, between 

 Penmon Point and Beaumaris, depth six fathoms, where 

 several specimens of the rare Nudibranch Cratena con- 

 cinna were obtained, along with a single very small speci- 

 men (2 '5 mm. long) of Dendronotus ar})orescens. The latter 

 is interesting in connection with our attempt (see the second 

 of these Reports, p. 7) to introduce this species at Puffin 

 Island. We cannot of course be sure that this small 

 specimen is tlie offspring of any of the Dendronotus which 

 we set free in September, 1888, only about a mile away, 

 but, at any rate, tliis is the first specimen of this species 

 which we have found in that neighbourhood. 



The next haul was off Port Dinorwic, where the dredge 

 came up filled w^ith sand, stones, and broken shells, on 



