53 VIII. Litteratur. 385 



F. HoiiioUe, Untersuchungen über die Stichlinge (Gasterostens). (Rivers. Ki«l. Vet. Ak. Ffirhandl. 



Stockholm Nr. 6, p. 39o— 410. 1SS9. 



L. G. Ander SSO n, Conipai'ison of Cottm jjoecilopna Heck, and f'. gohin L. Bih. Sv. Vct.-Ak. Hand!. Bd. 

 24 At'd. 4 Nr. ;). Stockholm. 1S9S. 



J. H. Voris, Material for the study of the Variation of Piniephales imtatns Rafin. in Tnrkev Lake 



and in Shoe and Tip|)Pcanoe Lakes. Proc. Indiana Ac. Sei. 1S99, p. 28.S — 239 (Contrib. 

 Biolog. Lab. Ind. Univ. Nr. 20). 1S99. 



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