114 BIOLOGICAL SURVEY OF 



Cliona Grant 

 Cliona celata Grant 



George and Wilson (1919, p. 138, pi. 56, figs. 2, 4, 5; pi. 66, 

 fig. 50). 



A common sponge in this region and always found boring 

 in old shells. 



Skeleton. This consists of irregularly scattered tylostyli. 



Spicules. These are tylostyli and subtylostyli, varying in 

 length from .243 mm. to .364 mm., with a modal length of 

 .324 mm. These spicules are sharply pointed and slightly 

 curved, with the curvature in the upper half or head end. In 

 the majority of the spicules the head is subterminal. 



Geographical distribution. Vineyard Sound (Verrill), 

 Casco Bay (Kingsley), Gulf of St. Lawrence (Lambe), Beau- 

 fort, N. C. (George and Wilson) ; Mount Desert Region. 



LITEEATUKE 



BowERBANK, J. S. 1864-1882 A monograph of the Britsh Spongiadae. Ray 



Society: vol. 1 (1864), pp. i-xx, 1-290, 37 pi.; vol. 2 (1866), pp. 



i-xviii, 1-388; vol. 3 (1874), pp. i-xvii, 1-367, 91 pi.; vol. 4 (1882), 



pp. i-xvii, 1-250, 17 pi. 

 Carter, H. J. 1880 In D 'Urban, W. S. M. The zoology of Barents Sea. Ann. 



Mag. Nat. Hist., ser. 5, vol. 6, pp. 253-277. 

 George, W. C, and Wilson, H. V. 1919 Sponges of Beaufort (N. C.) harbor 



and vicinity. Bull. Bur. Fish., vol. 36, pp. 129-179, 11 pi. 

 Hanitsgh, E. 1894 Eevision of the generic nomenclature and classification in 



Bowerbank's "British Spongiadae." Trans. Liverpool Biol. Soc, 



vol. 8, pp. 173-206. 

 Kingsley, J. S. 1901 Preliminary catalogue of the marine Invertebrata of 



Casco Bay, Maine. Proc. Portland Soc. Nat. Hist., vol. 2, pp. 159-183. 

 Lambe, L. M. 1893 On some sponges from the Pacific coast of Canada and 



Behring Sea. Trans. Eoy. Soc. Canada, vol. 10, sect. 4, pp. 67-78, 4 pi. 



1894 Sponges from the Pacific coast of Canada, Trans. Eoy. Soc. 



Canada, vol. 11, sect. 4, pp. 25-43, 3 pi. 



1895 Sponges from the western coast of North America. Trans. 



Eoy. Soc. Canada, vol. 12, sect. 4, pp. 113-138, 3 pi. 



1896 Sponges from the Atlantic coast of Canada. Trans. Eoy. Soc. 



Canada, ser. 2, vol. 2, sect. 4, pp. 181-211, 3 pi. 



1900 a Sponges from the coasts of northeastern Canada and Green- 

 land. Trans. Eoy. Soc. Canada, ser. 2, vol. 6, sect. 4, pp. 19-50, 6 pi. 



1900 b Notes on Hudson Bay Sponges. Ottawa Naturalist, vol. 13, 



pp. 277-279. 



