| Tanakia signifer | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Subfamily: | Acheilognathinae |
| Genus: | Tanakia |
| Species: | T. signifer |
| Binomial name | |
| Tanakia signifer L. S. Berg, 1907 [1] | |
| Synonyms | |
Acheilognathus signiferL. S. Berg, 1907 | |
Tanakia signifer is a species of ray-finned fish in the genus Tanakia .
A signifer was a standard bearer of the Roman legions. He carried a signum (standard) for a cohort or century. Each century had a signifer so there were 59 in a legion. Within each cohort, the first century's signifer would be the senior one. The -fer in signifer comes from ferre, the Latin for "to bear" or "to carry".
A standard-bearer, also known as a flag-bearer is a person who bears an emblem known as a standard or military Regulation Colours, i.e. either a type of flag or an inflexible but mobile image, which is used as a formal, visual symbol of a state, prince, military unit, etc. This can either be an occasional duty, often seen as an honour, or a permanent charge ; the second type has even led in certain cases to this task being reflected in official rank titles such as Ensign, Cornet and Fähnrich.
Shigeho Tanaka was a Japanese ichthyologist and professor of zoology at the Imperial University of Tokyo. He published numerous works on fishes and sharks and co-authored a book on Japanese fish with famous American scientist David Starr Jordan.
The roughback whipray is a rare species of freshwater stingray in the family Dasyatidae, found over sandy bottoms in the Mae Klong and Chao Phraya Rivers of Thailand. Growing no more than 29 cm (11 in) across, this small ray has an oval pectoral fin disc and a whip-like tail without fin folds. It closely resembles the white-edge freshwater whipray in appearance, but can be distinguished by its coloration: light gray to dark orange-brown above and white below with a dark band along the lateral margins. Another identifying feature is a "pearl organ" at the center of the back, found in individuals of all ages. All of the original specimens of the roughback whipray were found with extensive wounds to the fins and tail. The International Union for Conservation of Nature (IUCN) has assessed this species as Endangered, citing the extensive habitat degradation and heavy fishing pressure within its limited range.
Iracundus signifer, the Decoy scorpionfish, is a species of scorpionfish native to the Western Indian and Pacific oceans. A non-migratory species, I. signifer can be observed in close association with coral reefs at depths of from 10 to 70 metres. This species grows to a length of 13 centimetres (5.1 in) TL. This species is the only known member of its genus and can be distinguished by its unique prey-luring behavior.
Tanakia is a genus of cyprinid fish, consisting of five species that occurs in Eastern Asia. The type species is the Tanakia limbata.
Tanakia lanceolata is a temperate freshwater fish belonging to the Acheilognathinae sub-family of the family Cyprinidae. It originates in inland waterways in China, Japan and the Korean peninsula. It was originally described as Capoeta lanceolata by Temminck & Schlegel in 1846, and has also been referred to as Acheilognathus lanceolata and Acheilognathus lanceolatus in scientific publications. Its Korean name is 납자루, and in Japanese is known as ヤリタナゴ
The stumptooth minnow is an extinct species of cyprinid fish. It was found only in Mexico.
The white-edge freshwater whipray is an extremely rare species of stingray in the family Dasyatidae, native to four river systems in Southeast Asia. Measuring up to 60 cm (24 in) across, this ray has an oval pectoral fin disc and a very long, whip-like tail without fin folds. It can be identified by the presence of a sharply delineated white band running around the margin of its otherwise brown disc, as well as by its white tail and a band of dermal denticles along the middle of its back. This species feeds on benthic invertebrates and is aplacental viviparous. Its two long tail spines are potentially dangerous to humans. The International Union for Conservation of Nature (IUCN) has assessed the white-edge freshwater whipray as Endangered, as it is under heavy pressure from fishing and habitat loss, degradation, and fragmentation.
The honey blue-eye is an endangered species of fish in the subfamily Pseudomugilinae. It is endemic to southeastern Queensland, Australia, where it is found in mildly acidic, often tannin-stained, ponds and streams in wallum habitat.
The bitterling-like cyprinids form the cyprinid subfamily Acheilognathinae. This subfamily contains four genera, although the Khanka spiny bitterling is often placed in Acheilognathus, and at least 71 described species to date. Over half of the species are in the genus Acheilognathus.
Tanakia somjinensis is a species of ray-finned fish in the genus Tanakia.
Emblemariopsis signifer is a species of chaenopsid blenny found in coral reefs in the western Atlantic ocean. It can reach a maximum length of 2.8 centimetres (1.1 in) SL. This species is preyed on by Horse-eye jacks.
Hemanthias is a genus of colourful marine ray-finned fish in the subfamily Anthiinae, part of the family Serranidae, the groupers and sea basses. They are found at rocky reefs at depths of 20–610 m (66–2,001 ft) in the tropical and subtropical East Pacific and West Atlantic.
Tanakia himantegus is a species of fishes in the family Cyprinidae found in China and Taiwan.
The Tokyo bitterling is a temperate freshwater fish of the carp family (Cyprinidae). Taxonomically, it belongs to the subfamily Acheilognathinae.
The Pacific blue-eye is a species of fish in the subfamily Pseudomugilinae native to eastern Australia. Described by Austrian naturalist Rudolf Kner in 1866, it comprises two subspecies that have been regarded as separate species in the past and may be once again with further study. It is a common fish of rivers and estuaries along the eastern seaboard from Cape York in North Queensland to southern New South Wales, the Burdekin Gap in central-north Queensland dividing the ranges of the two subspecies.
Tanakia latimarginata is a species of fish in the family Cyprinidae. It is endemic to South Korea, where it is found in the Nakdong River drainage.
Tanakia shimazui is a species of fish in the family Cyprinidae. It is endemic to Japan.
Paratanakia himantegus chii is a fish, a subspecies of Tanakia himantegus, that is native to Southern China mainland including Guangdong, Fujian, Jiangsu, and introduced to Taiwan.
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