COHEN and RUSSO VARIATION IN FOURBEARD ROCKLING 



sistently apply the principles of binominal 

 nomenclature. Although Article ll.(c)(i) ("Uni- 

 nominal genus-group names published before 

 1931 without associated nominal species are ac- 

 cepted as consistent with the prmciples of binomi- 

 nal nomenclature, in the absence of evidence to 

 the contrary.") might serve as a basis for arguing 

 that the names in Gronovius ( 1760) are available, 

 the interests of stability would be served best by 

 considering the work unavailable, as its accep- 

 tance would require not only that Enchelyopiis 

 Gronovius 1760 replace Zoarceg Cuvier 1829, but 

 also that Cyclogaster Gronovius 1760 replace 

 Liparis Scopoli 1777. 



If Gronovius (1760) is considered as unavailable 

 for purposes of zoological nomenclature then the 

 first valid use of Enchelyapus is by Bloch and 

 Schneider (1801). The type-species was stated by 

 Jordan (1917) as Gadus cimbrius Linnaeus 1766 

 as first restricted, and Svetovidov (1973) gave the 

 type as Gadus cimbrius Linnaeus 1766 by 

 monotypy. However, neither of these methods of 

 type fixation is correct as Bloch and Schneider 

 referred 12 species to the genus, and although 

 cimbriua is the first one in order, there is no action 

 that could be construed as a type designation. The 

 earliest type designation for Enchelynpus Bloch 

 and Schneider 1801 that we have been able to find 

 is that of Jordan (1917) as Gadus cinibrius Lin- 

 naeus 1766. 



Rhinonemus Gill (1863a) was proposed for 

 Motella vaudavuta Storer 1848, a junior synonym 

 of Gadus cimbrius Linnaeus (Goode and Bean 

 1879) and is therefore a junior synonym of En- 

 chelyopus Bloch and Schneider. 



ACKNOWLEDGMENTS 



We are grateful to A. Wheeler for information 

 and discussions about rockling taxonomy, P. 

 Szarek for allowing us to read her unpublished 

 manuscript, and S. Johnson for information on 

 zoarcid nomenclature. For reading and comment- 

 ing on all or part of the manuscript we thank A. 

 Cohen. B. Collette, L. Dempster. M. Fahay, and W. 

 I. Follett. G. S. Myers assisted by allowing access 

 to rare literature. For access to study material we 

 thank D. McAllister, National Museums of 

 Canada; R. Jenkins, Cornell University; J. 

 Kaylor, NMFS, NCAA, Gloucester, Mass.; M. 

 Dick, Harvard University; R. Wigley, NMFS, 

 NCAA, Woods Hole, Mass.; C. Wenner and J. 

 Musick, Virginia Institute of Marine Science; G. 



Jonsson, Marine Research Institute, Reykjavik; J. 

 G. Nielsen. University of Copenhagen; A. 

 Wheeler. British Museum (Natural History); and 

 M. L. Bauchot, Natural History Museum. Paris. 

 For assistance with computer processing we 

 thank K. K. Beach, E. M. Hamilton, and the Office 

 of Technical Assistance at The George Washington 

 University Center for Academic and Administra- 

 tive Computing. Figures 1-4 were prepared by 

 Keiko Hiratsuka Moore. George Clipper took 

 X-ray photographs. Histological sections of the 

 dorsal fin were prepared by Margaret Melville. 

 The manuscript was typed by A. McClain and V. 

 Tucker. 



LITERATURE CITED 



ANDRIYASHEV, A. P. 



1954. Ryby severnykh moryei SSSR. Opred. Faune 

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 of the northern seas of the U.S.S.R. Keys to the fauna of 

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1973. Zoarcidae. In J C. Hureau and Th Monod 

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Battle, H. I. 



1930. Spawning periodicity and embryonic death rate of 

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1953. Fishes of the Gulf of Maine. U.S. Fish Wildl. Serv., 

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1801. Systema Ichthyologiae. Berlin, 584 p. 

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1908. Zur kenntnis der dorsalflosse bei "Motella tricirra- 

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1934. Notas sobre los Gaidropsaridae fPeces). Un nuevo 

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 BULLIS, H. R., JR., AND J. R. THOMPSON. 



1965. Collections by the exploratory fishing vessels Ore- 

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 CUVIER, G. 



1829. Le regne animal, Nouvelle ed, torn, II. Paris, 406 p, 

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1968. Notes biometriques et biogeographiques ser deux 

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1968. Planktonic fish eggs of Faxafloi. southwest Iceland, 

 1948-1957. Hit Fiskideildar 4i5l. 15 p. 



101 



