| Papuligobius uniporus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Oxudercidae |
| Genus: | Papuligobius |
| Species: | P. uniporus |
| Binomial name | |
| Papuligobius uniporus | |
Papuligobius uniporus is a species of small goby in the subfamily Gobionellinae. [4] It is also the type species of the genus Papuligobius. [5]
Males of this species can reach up to 6.5 cm in total length. Their vertebral column generally contains 26 individual vertebrae. [6] P. uniporus has a dorsal fin with 7 spines, but 9-10 soft rays. [5] Similarly, the anal fin has only one spine, but 8 to 9 soft rays. [5] 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. [5]
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. [5]
Endemic to Southeast Asia, this species has been historically reported in the Ma River (Laos), though it is also probably found in Vietnam. [7] [8] [6] [9]
This species lives in tropical freshwater systems. [6] It is also demersal: preferring to live near the bottom of wetlands in the Ma River basin. [1] [6] It is also known to inhabit small streams: preferring rocky substrate in clear, shallow, fast flowing channels. [6]
P. uniporus is considered 'Data Deficient' by the IUCN. [1] 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. [7]
Akysis is the largest genus of catfishes of the family Akysidae.
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The tadpole-gobies (Benthophilus), also called pugolovkas, are a genus of Ponto-Caspian fishes in the family Gobiidae.
The stellate tadpole-goby is a species of gobiid fish native to the basin of the Sea of Azov where it occurs in the Gulf of Taganrog and limans of the eastern coast. It also lives in the lower Don River up to the Tsimlyansk Reservoir. It occurs in fresh and brackish waters of depths greater than 3 metres (9.8 ft), preferring shallow coastal lagoons and lowland rivers. Males can reach a length of 13.5 centimetres (5.3 in) TL while females only reach 11 centimetres (4.3 in) TL.
The Black Sea tadpole-goby is a species of goby native to the basin of the Black Sea. Found in the Gulf of Tendra and limans of the north-western Black Sea, lakes of the Danube Delta. In the rivers of the Black Sea basin: Danube up to Iron Gate dam, Dniester up to Tighina, Dnieper up to Kyiv, Southern Bug. This species is mostly a denizen of fresh and slightly brackish bodies of water, preferring rivers and deltas, limans and coastal lakes. This fish can reach a length of 15 centimetres (5.9 in) TL.
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The Caspian tadpole goby is a species of goby which is widespread in the basin of the Caspian Sea, specifically in the near-estuary zone of the rivers and in small bays. It is a common species in the Volga River delta near Astrakhan, occurred in the deltas of rivers Terek, Ural, Samur. During the warmer months, this species prefers to live at depths of from .5 to 10 metres, moving in the colder months to depths of 20 to 25 metres. It can reach a length of 11.6 centimetres (4.6 in) TL.
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The Caspian stellate tadpole-goby, also known as the starry goby, is a species of gobiid fish endemic to the Caspian Sea basin. It is widespread along all coasts of the Caspian Sea with exception of the central-eastern, and in the lowest part of the Volga River. In the southern part of the basin, it is mentioned near the Ogurja Ada, in the Gorgansky Bay, and in the Sefīd-Rūd River. This species can reach a length of 10 centimetres (3.9 in) SL.
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Sewellia is a genus of fish in the family Balitoridae found in Laos and Vietnam. According to Roberts (1998) a possible defining characteristic of the genus Sewellia is their posterior pelvic valve is highly complex and different from other rheophilic loaches, their posterior pelvic valve involves the overlapping of the second to last ventrally exposed rays. Adapted to high velocity streams Sewellia have depressed body shapes that are laterally expanded thus increasing their hydrodynamical properties and allowing them to better stay attached to rocks in swift current. Sewellia also have paired fins with a single simple ray and numerous branched rays allowing them to grip rocks in swift current.
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Papuligobius is a genus of fish in the goby subfamily, Gobionellinae, native to Southeast Asia. It was erected in 2003 to house the species P. uniporus, newly described from Laos. A second species, P. ocellatus, was transferred from genus Rhinogobius at the same time.
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Eviota sebreei, common name Sebree's pygmy goby or striped dwarfgoby, is a species of fishes belonging to the family Gobiidae.
