| Galaxias supremus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Galaxiiformes |
| Family: | Galaxiidae |
| Genus: | Galaxias |
| Species: | G. supremus |
| Binomial name | |
| Galaxias supremus Raadik, 2014 | |
 | |
| Distribution of Galaxias supremus | |
Galaxias supremus, commonly known as the Kosciuszko galaxias, is a galaxiid of the genus Galaxias , a member of the Mountain galaxias species complex group of freshwater fish, found in Australia. [2]
Similar to other members of genus Galaxias. The mouth is set low on the relatively long snout, and the dorsal, pelvic and anal, fins are well back along the body. The caudal peduncle is short and shallow, with the tail fin long at about 20% longer than the caudal peduncle. The dorsal and anal fins are short, with the anal fin set well back at about 85% from the front of the dorsal fin, the furthest back of all members of the species complex. Maximum recorded length 96 millimetres (3.8 in), commonly 80–85 millimetres (3.1–3.3 in). [2]
It is light brown to tan over body and head and generally lighter below the lateral line, with the belly even lighter. The base colour is overlain by medium to large, darker, uneven blotches mostly joining together to form irregular bands, sometimes also overlain with a shading of tiny, closely packed dark grey spots. Occasionally small black bars are present mixed in with the blotches and spots around the midbody. The gills covers light brown with a medium-sized gold patch. The eyes are small with a golden iris. A thin band of gold spots is sometimes present on the upper surface between the nape and the dorsal fin. The head is covered with a scattering of diffuse gold flecks, and the body from behind the pectoral fins to the caudal peduncle has a band of gold to coppery spots concentrated mostly below the lateral line and towards the rear. [2]
It is not well known, reported only from Blue Lake and its tributary Carruthers Creek in the headwaters of the Snowy River system on Mount Kosciuszko within Mount Kosciuszko National Park in New South Wales and at an elevation of 1,900–1,950 metres (6,230–6,400 ft). Changes to the historical distribution are unknown, but the presence of alien trout in the upper reaches of the Snowy River and within 2 km of the Blue Lake system is considered to be a restricting factor on its range. [2]
The Kosciusko Galaxias is found in cold water in small, clear streams and one on-stream lake (Blue Lake). Stream width was 0.6–1.1 metres (2.0–3.6 ft) and depth was 50–60 centimetres (20–24 in). Stream beds consist of bedrock and boulders, through to gravel and sand; the lake bed consists of pebbles, gravel, and silt. It is able to withstand water below 2 °C (36 °F) for lengthy periods. All these waters are covered with snow and ice for long periods of time during winter. Fish have been collected mainly from pools in streams amongst rocks, undercut banks, and overhanging grasses. In the lake, fish were collected from rocks and small cobbles within 2 metres (6.6 ft) of the shore. The species' location and habitat in deeper waters of the lake are unknown. [2]
It is confined to freshwater, with an unknown spawning period likely to be late spring to early summer. Adult fish collected in mid-March were found to have mid-stage gonad development. [2]
It is listed as critically endangered by the IUCN. [1] [2]
It is not an angling target due to small size its and conservation status.[ citation needed ]
Galaxias olidus, the mountain galaxias, is a species of freshwater galaxiid fish widely found in southeastern Australia.
Galaxias fuscus, the barred galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Eldon's galaxias is an endangered galaxiid fish endemic to New Zealand. One of several fishes in the genus Galaxias found in Central Otago, it has a very small home range and is at risk of being driven to extinction by trout introduced for recreational fishing.
Galaxias is a genus of small freshwater fish in the family Galaxiidae, and are frequently referred to as the galaxiids. These highly adaptable fish are typically found at temperate latitudes across the Southern Hemisphere.
Percina burtoni, the blotchside logperch or blotchside darter, is a small, endangered species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the United States and classified as vulnerable on the IUCN Red List.
Squalius valentinus, commonly known as the Valencia chub and the Levantine bagra, is a species of freshwater fish in the carp family Cyprinidae. It was first isolated from the Turia River in Valencia, hence its name. It is considered endangered. This species is differentiated from its cogenerates by having eight branched rays in its dorsal fin; eight branched rays in its anal fin; two rows of pharyngeal teeth on both sides possessing 2 and 5 teeth ; a wide caudal peduncle; its number of gill rakers; the number of scales in its lateral line; the number of scale rows above the latter; by possessing three scale rows below it; by having thirty-nine vertebrae ; showing large 4th and 5th infraorbital bones; a maxilla with a very distinct marked anterior process; exhibiting a frontal bone expanded at the middle; a wide neurocranium bone; the lower branch of the pharyngeal bone being robust; a large and narrow urohyal; as well as genetic differences (allozymes).
The Savannah darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the eastern United States, where it occurs in the Edisto, Combahee, Broad and Savannah River drainages in South Carolina and Georgia. It inhabits gravel riffles, gravel and sand runs of creeks and small rivers. This species can reach a length of 7.4 cm (2.9 in).
Galaxias aequipinnis, the East Gippsland galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain galaxias species complex group of freshwater fish, found in Australia.
Galaxias arcanus, the riffle galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias brevissimus, the short-tail galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias gunaikurnai, the Shaw galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain galaxias species complex group of freshwater fish, found in Australia.
Galaxias lanceolatus, the tapered galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias longifundus, the West Gippsland galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias mcdowalli, McDowall's galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias mungadhan, the Dargo galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Victoria, Australia.
Galaxias oliros, the obscure galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias ornatus, the ornate galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
Galaxias tantangara, commonly known as the stocky galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain galaxias species complex group of freshwater fish, found in Australia. Only discovered in 2014, the fish is classed as critically endangered, mainly because of being preyed upon by introduced species of trout.
Galaxias terenasus, the roundsnout galaxias, is a galaxiid of the genus Galaxias, a member of the Mountain Galaxias species complex group of freshwater fish, found in Australia.
The bleeding wrasse is a species of marine ray-finned fish from the family Labridae, the wrasses. It is found in reefs in the eastern central Pacific Ocean.
