184 ROYAL SOCIETY OF CANADA 



Localities. — Coast of Labradoi-, one specimen, dry, Sir William 

 Dawson ; Orphan Bank, off the entrance to the Baie des Chaleurs, two 

 small fragments, in alcohol, J. F. Whiteaves. 



Chalina oculata, Pallas. 



(Plate I., figs. 2, 2a.) 



Spongia oculata, Palla.s. 1766. Elenchus Zoophytorum, p. 390. 



Halichondria oculata, Johnston. 1812. British Sponges, page 94, pi. iii., figs. 1, 2, 

 Chalina oculata, Bowerbank. 1861. Mon. Brit. Spong., vol. i., p. 208, pi. xiii., fig. 

 262; vol. ii., p. 361 ; vol. iii., p. 169, pi. Ixvi., figs. 1, 2, 3. 



This sponge is common in the Gulf of St. Lawrence and Bay of 

 Fundy and is found for some distance up the Eiver St. Lawrence. In 

 the specimen figured (Plate I., fig. 2), the oxea range in size from 

 0-144 by 0-009 m^m. to 0098 by 00049 mm. (Plate 1., fig. 2a). 



Localities. — Rivière du Loup, Nova Scotia, five specimens. Sir 

 William Dawson ; between Ste. Anne des Monts.and Cap Chat, one speci- 

 men, dry ; Nova Scotia, one specimen, dry, property Nat. Hist. Soc. 

 Montreal; Five Islands, Minas Basin, Bay of Fundy, one specimen, dry, 

 C. W. Willimott; Joggins, Nova Scotia, one specimen, dry, T. C. Weston. 

 Mr. AVhiteaves mentions that it occurs not infrequently in the Gulf of 

 St. Lawrence. 



Foreign distributioti. — Between England and Belgium (Pallas) ; 

 Xorthu.mberland coast and Firth of Forth (.Johnston) ; coast of Eng- 

 land (Bowerbank). 



Gellius arcoferus, Vosmaer. 

 (Plate I., figs. 3, 3a, 3/^.) 



Gellius arcoferus, Vosmaer. 1885. The sponges of the " Willem Barents " expedi- 

 tion, 1880 and 1881, p. 29, pi. iv., figs. 18, 19 and pi. v., figs. 87 90. 

 ' " Fristedt. 1887. Sponges from the Atlantic and Arctic Oceans 



and the Behring Sea (translation), Vega-expeditionens vetens- 

 kapliga arbeten, p. 438, pi. 24, flgs. 15-17. 



A few examples of this sponge were dredged in the Gulf of St. 

 Lawrence. They are all quite flat, about 18 ram. thick, not exceeding 

 120 mm. across and of a rich grayish-yellow colour when dry. 



The spicules are as alread}' described. oxea; length from 0-406 



to 0-484 mm., average thickness 0019 mm. (Plate L, fig. 3). Sigmata ; 

 length from 0-013 to 0019 mm. (Plate I., fig. 3a). Toxa ; from 0065 

 to 0176 mm. in length, and varying in thickness from 0003 to 0011 mm. 

 (Plate I., fig. 3b). A very few styli also occur; they vary in length 

 from 0-327 to 0-432 mm. and have an average thickness of 0-019 mm. 



' Report on deep-sea dredging operations in the Gulf of St. Lawrence, 1874. 



