FISHERY BULLETIN: VOL. 71. NO. 2 



ACKNOWLEDGMENTS 



I wish to thank R. L. Edwards and M. D. 

 Grosslein of the Northeast Fisheries Center, 

 National Marine Fisheries Service, NOAA, 

 Woods Hole, Mass., for providing me with the 

 opportunity to participate in cruises aboard 

 RV Albatross IV and for research facilities, 

 computer services, and much valuable advice 

 and direction. Thanks are also due to G. W. 

 Mead, formerly of the Museum of Comparative 

 Zoology, Harvard University, for constructive 

 criticism on ichthyological matters and for 

 pursuing with patience the tedious task of 

 editing early drafts of the dissertation from 

 which this paper has been extracted. Part of 

 my research was supported by National Science 

 Foundation grants G-19727 and GB-3167 to the 

 Harvard Committee on Evolutionary Biology 

 (Principal Investigator, Reed C. Rollins). 



LITERATURE CITED 



Bartlett, M. R., and R. L. Haedrich. 



1966. Techniques in the radiography of fishes. 

 Trans. Am. Fish. Soc. 95:99-101. 

 BiGELOW, H. B., and W. C. Schroeder. 



1953. Fishes of the Gulf of Maine. U.S. Fish 

 Wildl. Serv., Fish. Bull. 53, 576 p. 

 Cornish, G. A. 



1907. Notes on the Fishes of Canso. Contrib. Can. 



Biol. 9:81-90. 

 1912. Notes on fishes of Tignish, Prince Edward 

 Island. Contrib. Can. Biol. 7:79-81. 

 Duncan, D. B. 



1955. Multiple range and multiple F tests. Bio- 

 metrics 11: 1-42. 

 1957. Multiple range tests for correlated and 

 heteroscedastic means. Biometrics 13:164-176. 

 GooDE, G. B., AND T. H. Bean. 



1895. Oceanic ichthyology. U.S. Natl. Mus., Spec. 

 Bull. 2, 553 p. 



HUBBS, C. L., AND C. HUBBS. 



1953. An improved graphical analysis and com- 

 parison of series of samples. Syst. Zool. 2:49-56, 92. 



HuBBS, C. L., AND K. F. Lagler. 



1958. Fishes of the Great Lakes region. Revised 

 ed. Cranbrook Inst. Sci., Bull. 26, 213 p. 

 Kaup, J. J. 



1858. Uebersicht der Familie Gadidae. Arch. 

 Naturgesch.24{l):85-93. 

 Leim, a. H., AND W. B. Scott. 



1966. Fishes of the Atlantic coast of Canada. 

 Fish. Res. Board Can., Bull. 155, 485 p. 



MiTCHILL, S. L. 



1814. Report in part, of Samuel L. Mitchill, M.D., 

 Professor of Natural History, &c., on the fishes 

 of New York. D. Carlisle, N.Y., 28 p. (Reprinted 

 by T. Gill (editor), 1898, with his introduction 

 and concordance of species.) 



Mottley, C. M. 



1941. The covariance method of comparing the 

 head-lengths of trout from different environments. 

 Copeia 1941:154-159. 



MujiB, K. A. 



1967. The cranial osteology of the Gadidae. J. Fish. 

 Res. Board Can. 24: 1315-1375. 



MusiCK, J. A. 



1969. The comparative biology of two American 

 Atlantic hakes, Urophycis chuss and U. tenuis 

 (Pisces: Gadidae). Ph.D. Thesis, Harvard Univ., 

 Cambridge, 150 p. 

 Rarnesque-Schmaltz, C. S. 



1818. Phycis inarginatiis, Rafinesque. New York, 

 27lh No. 1815. In S. L. Mitchill, A supplement 

 to the fishes of New York. Am. Mon. Mag. 

 Crit. Rev.. 1817-1818 2:241-248. 

 Snedecor, G. W. 



1956. Statistical methods applied to experiments 

 in agriculture and biology. 5th ed. Iowa State 

 College Press, Ames, 534 p. 

 Steel, R. G. D., and J. H. Torrie. 



1960. Principles and procedures of statistics with 

 special reference to the biological sciences. 

 McGraw-Hill. N.Y., 481 p. 

 Storer, D. H. 



1839. A report on the fishes of Massachusetts. 

 Boston J. Nat. Hist. 2:289-570. 



SVETOVIDOV, A. N. 



1948. Gadiformes. Akad. Nauk. SSSR, Fauna 

 SSSR, Ryby 9(4), (Zool. Inst. N.S. 34), 221 p. 

 (Translated by Israel Program Sci. Transl., 304 p., 

 available Natl. Tech. Inf. Serv., Springfield, Va., 

 as OTS 63- 11071. 

 Vladykov, V. D., and R. A. McKenzie. 



1935. The marine fishes of Nova Scotia. Proc. 

 N. S. Inst. Sci. 19:17-113. 



486 



