page_title: Chinese sleeper
section_title: Description
hierarchical_section_title: Chinese sleeper / Description
caption_attribution_description: English: Chinese sleeper, Amur sleeper (Perccottus glenii) - freshwater fish of Odontobutidae family. Found in wild in Ukraine, near Vinnitsa (Vinnytsia) in 2009. Українська: Ротань-головешка (Perccottus glenii) - прісноводна риба із родини Odontobutidae. Знайдена у дикому вигляді в Україні біля Вінниці у 2009 році. Latina: Perccottus glenii Dybowski, 1877 Русский: Ротан, он же головешка, головешка-ротан, ротан-головешка (Perccottus glenii). Выловлен в пруду на Украине, возле города Винницы в 2009 году. Polski: Trawianka (Perccottus glenii). Ukraina, Winnica, 2009.
context_page_description: The Chinese sleeper, also known as the Amur sleeper, is a species of freshwater sleeper native to Amur River basin in eastern Asia with introduced populations in other regions of Eurasia. It is currently the only known member of its genus.
context_section_description: The Chinese sleeper, known as rotan in Russia, resembles a perch, ruffe or sculpin. The eyes are placed high on the head which has a rounded snout and projecting lower jaw. There is little or no gap between the two dorsal fins, the front one of which has six to eight spines and the back one nine to eleven soft rays. The anal fin has one to three spines and seven to ten soft rays. The pelvic fins are not fused together which helps to distinguish this fish from the gobies. The second dorsal and the anal fins are both more rounded and shorter than the gobies and the caudal fin is also more rounded. The general colour is brownish with a checker-board pattern of darker marks or dark barring. There are dark lines on the head radiating from the eye.  This species can reach a length of 25 centimetres (9.8 in) TL and the greatest recorded weight for a specimen is 250 grams (8.8 oz).
caption: The invasive Chinese sleeper from the region of Vinnytsia, Ukraine
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