Papuligobius uniporus is a species of small goby in the subfamily Gobionellinae. It is also the type species of the genus Papuligobius.

Description Males of this species can reach up to 6.5 cm in total length. Their vertebral column generally contains 26 individual vertebrae.FishBase P. uniporus has a dorsal fin with 7 spines, but 9–10 soft rays.Chen, I.-S. and M. Kottelat, 2003. Papuligobius uniporus, a new genus and species of freshwater goby (Perciformes: Gobiidae) from north-eastern Laos. Ichthyol. Explor. Freshwat. 14(3):243-248. Similarly, the anal fin has only one spine, but 8 to 9 soft rays. The pectoral fins commonly have 18–19 soft rays, the base of which has 3 vertically arranged white spots, though the caudal fin (and other fins) are plain.

P. uniporus, together with P. ocellatus, appear most similar to the genera Rhinogobius and Tridentiger, and may share an evolutionary origin with these other groups of gobies.

Distribution and habitat

Endemic to Southeast Asia, this species has been historically reported in the Ma River (Laos), though it is also probably found in Vietnam.Kottelat, M., 2001. Freshwater fishes of northern Vietnam. A preliminary check-list of the fishes known or expected to occur in northern Vietnam with comments on systematics and nomenclature. Environment and Social Development Unit, East Asia and Pacific Region. El Banc Mundial. Freshwater Fish. Vietname (BOOK), Junho: i-iii + 1-123 + 1-18.Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p.

This species lives in tropical freshwater systems. It is also demersal: preferring to live near the bottom of wetlands in the Ma River basin. It is also known to inhabit small streams: preferring rocky substrate in clear, shallow, fast flowing channels.

Conservation P. uniporus is considered 'Data Deficient' by the IUCN. It is not currently known whether it faces any major threats, nor weather its population is stable. While P. uniporus is not protected by name in any laws, it is found in protected areas such as Vietnam's Phong Nha-Kẻ Bàng National Park. Tuan, H. 2015. Ichthyofauna in the Phong Na- Ke Bang National Park from Vietnam. Mediul Ambiant.

See also List of data deficient fishes

References

External links AQUATAB species entry Catalogue of Life species entry