A redescription of the domestic find of the big sea krait <i>Pseudolaticauda semifasciata</i> (Reinwardt in Schlegel, 1837), with a note on the species composition of sea snakes (Serpentes: Laticaudidae, Hydrophiidae) in Russian and adjacent waters
A single domestic find of the big sea krait Pseudolaticauda semifasciata is redescribed, and all finds of sea snakes in Russian and adjacent waters are listed. Keys for identification of sea snakes of the Sea of Japan are given.