Juraj Holčík

A New Species of Gymnocephalus (Pisces: Percidae) from the Danube, with Remarks on the Genus

metrurus oreni. Sea Fish. Res. Sta., Haifa 60:1-12. FOURMANOIR, P. 1965. Liste complementaire des poissons marins de Nha-Trang. Cahiers ORSTOM, Oc6anographie, no. spec.:1-114. . 1969.

Characteristics of Rhodeus ocellatus and Acheilognathus lanceolatus Hybrids

Mountains National Park. U. S. Fish and Wildl. Ser. Spec. Sci. Rept. Fish (306):1-22. MINCKLEY, W. L. AND L. A. KRUMHOLZ. 1960. Natural hybridization between the clupeid genera Dorosoma and Signalosa, with a report on the distribution of S. petenensis. Zoologica 44(4):171-80. MOORE, G. A. 1957. Fishes. In Vertebrates of the United States, by W. F. Blair, A. P. Blair, P. Brodkorb, F. R. Cagle, and G. A. Moore. McGraw-Hill Book Co. Inc. N. Y. pp. 210-21. 1950. The cutaneous sense organs of barbeled minnows adapted to life in the muddy waters of the Great Plains Region. Trans. Am. Micro. Soc. 69(1):69-95. TRAUTMAN, M. B. 1957. The Fishes of Ohio. Ohio State Univ. Press, Columbus, 683 pp. AND R. G. MARTIN. 1951. Moxostoma aureolum pisolabrum, a new subspecies of sucker from the Ozarkian streams of the Mississippi River System. Occ. Pap. Mus. Zool. Univ. Mich. 534:1-10. DEPARTMENT OF ZOOLOGY, UNIVERSITY OF LOUISVILLE, LOUISVILLE, KENTUCKY.

The Taxonomic Characteristics of Hybrid Rhodeus

STEPHENSON, L. W. 1952. Larger invertebrate fossils of the Woodbine Formation (Cenomanian) of Texas. U. S. Geol. Surv. Prof. Pap. (242): 1-226, 59 pls. STROMER, E. 1917. Die Sage des Pristiden Onchopristis numidus Haug sp. und iber die TEPHENSON, L. W. 1952. Larger invertebrate os ils of the Woodbine Formati n (Cenomaian) of Texas. U. S. Geol. Surv. Prof. Pap. ( 42): 1-226, 59 pls. Sag n der Saghaie. Kgl. Bayer. Ak. WissenMath. Ab. 8:1-27, 1 pl. DEPARTMENT OF GEOLOGY, ARLINGTON STATE COLLEGE, ARLINGTON, TEXAS; AND MUSEUM OF PALEONTOLOGY, SOUTHERN METHODIST UNIVERSITY, DALLAS, TEXAS. e e Saghaie. Kgl. Bayer. Ak. Wissen. . 8:1-27, 1 pl. E T OF GEOLOGY, ARLINGTON STATE , RLINGTON, TEXAS; AND MUSEUM TOLOGY, SOUTHERN METHODIST

CHARACTERISTICS OF ACHEILOGNATHUS LANCEOLATUS AND RHODEUS SERICEUS AMARUS HYBRIDS

A taxonomic analysis of the artificially produced hybrid between female Acheilognathus lanceolatus from Japan and male Rhodeus sericeus amarus from Holland is presented. The hybrids were phenotypical sterile males. They showed considerable variation in their counts and measurements. This feature is interpreted as a result of deficient genomic compatibility between the parental species.

CHARACTERISTICS OF PARACHEILOGNATHUS TABIRA AND RHODEUS SERICEUS AMARUS HYBRIDS

Summary The results of a taxonomical analysis of the hybrids between Paracheilognathus tabira from Japan and Rhodeus sericeus amarus from Europe are presented. In their general appearance, both kinds of hybrid were intermediate with a tendency toward R. s. amarus. This tendency was stronger in the hybrid between R. s. amarus ♀ and P. tabira ♂ than in the reciproce. Some aspects of the dominating influence of R. s. amarus in the hybrids are discussed.

An Aberrant Hybrid between Rhodeus ocellatus ocellatus and R. sericeus amarus (Cyprinidae)

The hybrids between female Acheilognathus lanceolatus and Rhodeus amarus, and male Acheilognathus himantegus. Can. J. Zool. 40:255-259. . 1962d. Hybridization experiments in acheilognathine fishes (Cyprinidae, Teleostei). Intergeneric hybrids between Rhodeus spinalis, Rhodeus ocellatus from Korea and Japan, and Acheilognathus tabira. Zool. Anz. 169 (9-10):373-384. . 1962e. Hybridization experiments in acheilognathine fishes (Cyprinidae, Teleostei). The interspecific hybrids between Acheilognathus lanceolatus and Acheilognathus tabira. Can. J. Zool. 40:421-424. 1964. Hybridization experiments in acheilognathine fishes (Cyprinidae, Teleostei). Hybrids between female Paracheilognathus rhombeus, and male Rhodeus ocellatus, Tanakia tanago, Acheilognathus tabira, A. limbatus, and Rhodeus spinalis. Copeia 1964(1): 150-155.