1233. . 1957. Studies on the dimorphic salmons, 



Oncorhynchus masou (Brevoort) and Oncorhynchus 

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 adjacent territories. (Sakura-masu Oncorhynchus 

 masou (Brevoort) narabi ni biwa-masu Oncorhynchus 

 rhodurus Jordan and McGregor no kan-suru kenkyu.) 



Nire Book Co., Sapporo, 81 p. Transl. Fish. Res. Board 

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29. 1959. Occurrence of the natural hybrid between 



Oncorhynchus masou and Oncorhynchus rhodurus in the 

 upper stream of Tenriu R. Dobutsugaku Zasshi 

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1234. Ozibko, R.L. 1971. The firetex. Aquarium 4(12): 



6-7, 38-40. 



-P- 



1235. Paetz, M.J., and J.S. Nelson. 1970. The fishes of Alberta. 



Queens Printer, Edmonton, Canada, 282 p. 



1237. Page, L.M. 1974. The life history of the spottail darter 



Etheostoma squamiceps in Big Creek, Illinois and 

 Ferguson Creek, Ky. 111. Nat. Hist. Surv. Biol. 

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1238. . 1975. The life history of the stripetail darter 



Etheostoma kennicotti , in Big Creek, Illinois. 111. 

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1239. . 1976. Natural darter hybrids: Etheostoma 



gracile x Percina maculata, Percina caprodes x 

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1236. , and B.M. Burr. 1974. The life history of the 



slabrock darter, Etheostoma smithi , in Ferguson 

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12 p. 



1240. Parzefall, J. 1979. Zur genetik und Biologischen bedeu- 



tung des Aggress ionsverhal tens von Poecilia sphenops 

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1241. Patterson, M. 1976. Fundulus notatus and Fundulus olivaceus. 



Two American topminnows . J. Am. Killifish Assoc, 

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1242. Paulakovich, S. 1974. Fishing outlook. Pa. Angler 



43(l):2-3, 9. 



106 



