Li

Erromyzon sinensis is a gastromyzontid loach from the Xi Jiang (West River) system in southern China, mostly in Guangxi. It is extremely rare to nonexistent in the aquarium trade, although its name has been widely misapplied to congeners such as the unidentified E. sp. 'ER02'. An obligate bottom-dweller, it lives in shallow, fast-flowing, highly-oxygenated headwaters and minor tributaries, clinging to rocks with its flattened body and horizontally-orientated paired fins.

Leptobotia guilinensis is a botiid loach from southern China, described from Guangxi Province and also recorded from neighbouring Hunan. The species is rarely exported for the aquarium hobby, and fish labelled as such are usually Sinibotia pulchra or other related species. In the formal description Chen states that it is closely related to the fish now called Sinibotia zebra but lacks stripes on the head. Its habitat is unconfirmed but presumably clear, well-oxygenated running water over rocks and gravel.

Parabotia lijiangensis is a botiid loach described from the Li River drainage near Guilin, in the Pearl River system of southern China. It has 10-13 dark vertical bars on the body and a dark, ocellated spot in the centre of the caudal-fin base. It probably inhabits clear, well-oxygenated running water, and the occasional specimen may turn up among shipments of similar-looking Sinibotia.

Rhinogobius filamentosus is a small goby from the Li River system in Guangxi, southern China, also collected in neighbouring Guangdong province. Very few details of its range exist, and its habitat is presumed to be smaller rivers and streams over gravel, rocks and boulders. The name refers to the extended primary dorsal-fin rays of males.

Acrossocheilus parallens is a barred cyprinid from Guangdong and Hainan provinces in southern China, plus the island of Taiwan. It has five or six dark vertical bars on each flank, each two scales wide, a pattern it shares with A. paradoxus and several other congeners. Wild fish feed on small benthic invertebrates and graze biofilm from rocks and other solid surfaces.