420 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
LITERATURE. 
Alder, J. 
1863. Observations on the Bi-itish Tunicata, with descriptions of 
several new species. Ann. Mag. Nat. Hist., ser. 3, vol. 11, p. 153- 
173, pi. 7. 
Alder, .J., and Hancock, A. 
1907. The British Tunicata. (Vol. 1, London, 1905.) Vol. 2, x.Kviii + 
164 pp., text-fig. 25-S7, pi. 21-50, Ray Society, London. 
Bancroft, F. W. 
1903. Variation and fusion of colonies in compound ascidians. Proc. 
California Acad. Sci., ser. 3, zool., vol. 3, p. 137-186, pi. 17. 
Binney, W. CI. 
1870. Mollusca. In Gould's Report on the Invertebrata of Massachu- 
setts. 2d edition, v + 517 pp., 27 pis. Boston. 
Bjerkan, P. 
1905. Ascidien von dem norwegischen Fischereidampfer "Michael 
Sars" in den Jahren 1900-190-1 gcsammelt. Bergens Mus. Aarbog, 
1905, no. 5, 30 pp., 3 pis. 
1908. Die Ascidien des nordlichen Norwegens. Tromsoe Mus. Aar.sheft., 
no. 25, p. 49-118, 1 pi. 
Bonnevie. K. 
1896. Ascidiae simplices og Ascidiae conipositae fra Nordhav.s-Expedi- 
tionen. Norske Nordhavs-Exp., 1876-'78, Z:jo1., vol. 23, no. 2, 
16 pp., 2 pis. 
Chiaje. S. delle. 
1828. Memorie sulla storia e notomia degli animali senza vertebre del 
regno di Napoli. Vol. 3, Naples, 1828. 
Coues, E., and Yarrow, H. C. 
1878. Notes on the natural history of Fort Macon, N. C, and vicinity. 
(No. 5.) Proc. Acad. Nat. Sci. Philadelphia. 1878, p. 297-315. 
(Tunicata, p. 303-304.) 
Couthouy, J. P. 
1838. Descriptions of new species of Mollusca and shells, and remarks 
on .several Polypi found in Massachusetts Bay. Boston Journ. Nat. 
Hist., vol. 2, p. 53-111, pi. 1-3. 
Dall, W. H. 
1870. Revision of the classification of the Mollusca of Massachusetts. 
Proc. Boston Soc. Nat. Hist., vol. 13, p. 240-257. 
Davenport, C. B. 
1898. The fauna and flora al)Out Coldspring Harbor, L. I. Science, 
new ser., vol. 8, p. 685-689. 
