

MAKINE BIOLOGICAL STATION ON PUFFIN ISLAND. 41 



mastia mammillaris , P. robusta, Tethya lyncurium (budding), 

 and magnificent examples of the massive form of Cliona 

 celata, the largest specimen, from near Rhoscolyn Beacon, 

 measuring 31 cm. by 20 cm. horizontally, and 12 cm. 

 vertically, and being probably not exceeded in size by any 

 sponge ever collected on the British coasts. 



Miss L. E. Thornely, who has carefully examined all 

 the material we brought back from this expedition, in- 

 forms me that we obtained 26 species of Hydroid 

 Zoophytes, including Halecium tenellum, Diphasia atten- 

 uata, Plumularia echinulata, Eudendrium capillar e, and 

 Garveia nutans. Miss Thornely has also given me a list of 

 the Polyzoa which she has identified from this cruise, 

 comprising 38 species, six of which have not previously 

 been recorded from that region (Anglesea) of our district, 

 viz., Scrupo cellar ia scrupea, Membranipora pilosa form 

 dentata, Smittia reticulata, Cellepora avicularis, Bowerbankia 

 caudata, and Pedicellina cernua form glabra. In a collection 

 made by Mr. F. Archer at Bull Bay, on the north coast 

 of Anglesea, later in the summer, Miss Thornely finds 25 

 species, including several of the rarer ones mentioned 

 above, and Cellepora ramulosa. 



Mr. Hornell tells me that this cruise gave for the first 

 time to our local fauna the Annelids Spmther oniscoides, 

 Nicomache lumbricalls, Sabellaria spinulosa, large numbers 

 of Polynoe scolopendrbia, and one example of Nychia cirrosa, 

 which, curiously, was first described as British by the 

 Swedish naturalist, Malmgren, from a wrongly named 

 specimen of Polynoe in the British Museum, labelled as 

 hailing from Beaumaris. 



On the third night we again anchored in Porth Dafarch, 

 and after dark the electric lights were again used for a 

 couple of hours. This time the large arc lamp was taken 

 to the stern and suspended close to the surface of the 



