Contents

Journal of Ichthyology


Vol. 65, No. 1, 2025


EDITORIAL NOTE

Patterns and Mechanisms of Freshwater Fish Diversification

p. S1  abstract

Discordant Morphological and Genetic Differentiation between Fourhorn Sculpin Triglopsis quadricornis (Teleostei: Cottidae) from the Baltic Sea and Lake Ladoga

V. G. Sideleva, Z. V. Zhidkov, and N. V. Annenkova p. S2  abstract

Thyroid Hormones in the Diversification of Pigment Patterns in Teleosts

D. V. Prazdnikov p. S14  abstract

Ecogeographic Regions and Units of Fish Reproduction in Far Eastern Freshwaters

L. A. Zhivotovsky p. S22  abstract

A New Hotspot of Salmonid Adaptive Radiation Revealed: Multiple Diversifications of Salvelinus malma (Salmonidae) Sharing Freshwater Habitats in Kamchatka

E. V. Esin p. S35  abstract

Ontogenetic Effects and Morphological Consequences of the Goitrogen Treatment on the Caudal Fin Skeleton of Zebrafish Danio rerio (Danionidae)

D. V. Kapitanova and F. N. Shkil p. S49  abstract

How Did the Maxilla Get Rid from the Palatoquadrate: On the Evolutionary Origin of the Coronoid Process in Neopterygians

A. A. Tsessarsky p. S70  abstract