NO. 1933. BRYOZOA FROM EASTERN NORTH AMERICA— 08BURN. 287 



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Suborder CTENOSTOMATA. 

 BOWERBANKIA GRACILIS var. CAUDATA (Hincks). 



Locality. — Browns Bank off Cape Sable, one small colony spreading 

 on the stem of a hydroid. 



As shown by the writer (Osburn, 1912, p. 253) the caudata of Hincks 

 (1877, p. 215) intergrades with Leidy's gracilis (1855, p. 10) and is 

 worthy only of varietal rank. The species with its variety is common 

 on the North American coast as far south as Florida, but has not 

 heretofore been recorded as far north as Canada. 



BIBLIOGRAPHY. 



The following papers form a practically complete list of those referring to the species 

 dealt with in the preceding pages, as far as their occurrence on the American side of 

 the Atlantic Ocean is concerned. Other papers to which special reference has been 

 made are also included. For other references the reader is directed to Jelly's admir- 

 able catalogue (see below) which is very complete to the year 1889. 



1902. Anderson, K. A. Bryozoen wahrend der Schwedischen Expeditionen 1898 



und 1899 unter Leitung von Prof. A. G. Nathorst und 1900 imter Leitung 



von Conservator G. Kolthoff gesammelt. Zoologische Jahrbiicher, vol. 15, 



1901-2, pp. 537-560, pi. 30. 

 1905. BiDENKAP, Olaf. Fortegnelse over de arktiske bryozoer. Bergene Museums 



Aarbog, No. 9, pp. 1-79. 

 1867. Busk, G. Polyzoa collected by Mr. McAndrew on the coast of Norway and 



Finmark in 1856. Annals and Magazine of Natural History, ser. 2, vol. 18, 



pp. 32-36, pi. 1. 

 1881. . List of polyzoa collected by Capt. H. W. Feilden in the North Polar 



Expedition; with descriptions of new species. Journal of the Linnean 



Society of London, vol. 15, pp. 231-241, pi. 13. 

 1884. . Report on the Polyzoa collected by H. M. S. Challenger, part 1 



Cheiloetomata, vol. 10, part 30, pp. 1-216 (4-xxiv), pis. 1-36. 

 1907. Cornish, G. A. Report on the Marine Polyzoa of Canso, Nova Scotia. Marine 



and Fisheries Report of Canada, Sessional paper No. 22, pp. 75-80. Ottawa. 

 1859. Dawson, J. W. Geological Survey of Canada for 1858, Polyzoa, pp. 255-257. 



1865. . Proceedings of the Nova Scotia Institute, vol. 1, part 3. 



1848. Desor, E. Ascidioidian Polyps or Bryozoa (from Nantucket). Proceedings 



of the Boston Society of Natural History, vol. 3, pp. 66-67. 

 1780. Fabricius, O. Fauna Gronlandica. Bryozoa confused with other groups on 



pp. 428-448. 

 1877. Hincks, T. On Polyzoa from Iceland and Labrador. Annals and Magazine 



of Natural History, ser. 4, vol. 19, pp. 97-112, pis. 10-11. 

 1882-1884. . Polyzoa of the Queen Charlotte Islands. Annals and Magazine 



of Natural History, ser. 5, vol. 10, September, 1882; also, December, 1882; 



vol. 11, June, 1883; and vol. 13, January and March, 1884. Reprinted in 



the Geological and Natural History Survey of Canada, Ottawa, 1884, pp. 



1-44, with 7 plates. 

 1888-1892. . Polyzoa of the St. Lawrence. Annals and Magazine of Natural 



History, ser. 6, vol. 1, pp. 214-227, pis. 14-15; vol. 3, pp. 424-433, pi. 31; 



vol. 9, pp. 149-157, pi. 8. 

 1889. Jelly, E. C. A Synonymic Catalogue of the Recent Marine Bryozoa. 322 



pages. London. 



