Danio annulosus

Last updated

Danio annulosus
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Danioninae
Genus: Danio
Species:
D. annulosus
Binomial name
Danio annulosus
S. O. Kullander, Rahman, Norén & Mollah, 2015

Danio annulosus is a species of Chain danio fish in the family Cyprinidae in Danio genus. The species is named and described jointly by Sven O Kullander, M.D Mizanur Rahman, Michael Noren and Abdur Rob Mollah in 2015 in association with the Department of Zoology, Swedish Museum of Natural History, Sweden and the Department of Zoology, University of Dhaka, Bangladesh. The study and paper on Danio annulosus was published in ZooTaxa both online and in print in the same year (2015). [1] It was collected from a small pool at the bottom of the Shuvolong Falls in the Kaptai Lake system in Rangamati district in the Chittagong division, Bangladesh. The species name annulosus is derived from the neo-Latin word meaning "ringed", from the color pattern on the side of the fish which resembles a pattern of dark rings. [1]

Contents

Distribution

Danio annulosus is so far known only from a small pool below the Shuvolong waterfalls during the summer when the water was stand still in the pool. There is a good chance of finding them in Kaptai lake system formed by the damming of Karnafuli River, as a small stream drains the pool to kapati lake.

Description

Danio annulosus is the 25th species of the Danio identified. Just like all the chain danios Danio annulosus has chain like pattern instead of the striped patterns of zebra danios. As all the chain danios, Danio annulosus has the same color pattern containing a series of dark rings with light color space beside it, a complete lateral line, 14 circumpendular scales, have the first ray in the pectoral fin and a black humeral spot. Danio annulosus is different from the rest of the Puntius species by many features such as a much shorter pecotal and pelvic fins, the humeral spot is a bit wider and deep, instead of round or deep wide. No sexual dimorphism is present in Danio annulosus. [1]

Coloration

Healthy adult individuals in life have dark stripes which include circles which are blue in color with the space in between including the circle centres are orange in color. A unique orange spot is seen in the front of the black cleithral spot. [1]

Holotype

The holotype DU 50001 is an adult individual and probable female, 71.5 mm in length and collected form a Chittagong Division, Rangamati District, Borokal, pool at bottom of Shuvolong Waterfall on 28 Nov 2014.

Related Research Articles

Chittagong Second-largest city in Bangladesh

Chittagong, officially Chattogram, is the second-largest city in Bangladesh. It is the administrative seat of the eponymous division and district. It hosts the busiest seaport on the Bay of Bengal. The city is located on the banks of the Karnaphuli River between the Chittagong Hill Tracts and the Bay of Bengal. The Greater Chittagong Area had a population of more than 8.7 million in 2017. In 2021, the city proper had a population of more than 5.1 million.

Rangamati Hill District District of Bangladesh in Chittagong Division

Rangamati Hill District, is a district in south-eastern Bangladesh. It is a part of the Chittagong Division and the town of Rangamati serves as the headquarters of the district. By area, Rangamati is the largest district of the country.

Border Guards Bangladesh Border security agency of the Bangladesh government

Border Guards Bangladesh (BGB) are a paramilitary force responsible for the border security of Bangladesh. The force is known as "The Vigilant Sentinels of the National Frontier". The BGB is entrusted with the responsibility to defend the 4,427 kilometres (2,751 mi) border of Bangladesh. It was formerly known as the Bangladesh Rifles (BDR).

<i>Danio</i> Genus of fishes

Danio is a genus of small freshwater fish in the family Cyprinidae found in South and Southeast Asia, commonly kept in aquaria. They are generally characterised by a pattern of horizontal stripes, rows of spots or vertical bars. Some species have two pairs of long barbels. Species of this genus consume various small aquatic insects, crustaceans and worms.

<i>Danio margaritatus</i> Species of fish

Danio margaritatus, the celestial pearl danio, often referred to in the aquarium trade as galaxy rasbora or Microrasbora sp. 'Galaxy', is a small cyprinid from Myanmar. It has so far been found only in a very small area near Hopong east of Inle Lake, at an elevation of over 1,000 m (3,400 ft). Its habitat is part of the Salween basin, namely the Nam Lang and Nam Pawn Rivers. Discovered in 2006, the species quickly appeared in the aquarium trade, where its small size and bright colours made it an instant hit.

<i>Garra</i> Genus of fishes

Garra is a genus of fish in the family Cyprinidae. These fish are one example of the "log suckers", sucker-mouthed barbs and other cyprinids commonly kept in aquaria to keep down algae. The doctor fish of Anatolia and the Middle East belongs in this genus. The majority of the more than 140 species of garras are native to Asia, but about one-fifth of the species are from Africa.

Tourism in Bangladesh Overview of tourism in Bangladesh

Bangladesh's tourist attractions include historical monuments, resorts, beaches, picnic spots, forests and tribal people, wildlife of various species. Activities for tourists include angling, water skiing, river cruising, hiking, rowing, yachting, and sea bathing.

Hornyhead chub Species of fish

The hornyhead chub is a small species of minnow in the family Cyprinidae of order Cypriniformes. It mainly inhabits small rivers and streams of the northern central USA, up into Canada. The adults inhabit faster, rocky pools of rivers.

Chittagong Hill Tracts conflict Conflict between the Bangladeshi government and tribal insurgents

The Chittagong Hill Tracts conflict was a political and armed conflict between the government of Bangladesh and the Parbatya Chattagram Jana Samhati Samiti and its armed wing, the Shanti Bahini, over the issue of autonomy and the land rights of Jumma people, mainly for Chakma people and the other indigenous of Chittagong Hill Tracts. Shanti Bahini launched an insurgency against government forces in 1977, when the country was under military rule, and the conflict continued for twenty years until the government and the PCJSS signed the Chittagong Hill Tracts Peace Accord in 1997.

<i>Synodontis alberti</i> Species of fish

Synodontis alberti, the bigeye squeaker, Albert's syno, bigspotted squeaker, or high-fin synodontis, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo. It was originally described in 1891 by Belgian ichthyologist Louise Schilthuis after its discovery in the Malebo Pool of the Congo River.

<i>Synodontis schoutedeni</i> Species of fish

Synodontis schoutedeni, known as the yellow marbled Synodontis, is a species of upside-down catfish native to the Congo Basin of the Democratic Republic of the Congo and the Republic of the Congo. It was first described by Belgian ichthyologist Lore Rose David in 1936, based upon a holotype discovered in Basongo, in what is now the Democratic Republic of the Congo. The specific name "schoutedeni" is named after the Belgian zoologist Henri Schouteden.

Odessa barb Species of fish

The Odessa barb is a species of cyprinid fish known from Central Myanmar, where it is known to occur in an artificial pond above the Anisakan Falls and also from the lower Chindwin River. For many years it has been known to the aquarium hobby, where it has frequently been confused with the less colourful ticto barb), but it was only described scientifically in 2008.

<i>Danio tinwini</i> Species of fish

Danio tinwini, commonly called gold-ring danio, is a newly discovered species of Danio from Myanmar. It is also referred to as Danio sp. "TW02". It is a tiny gold fish whose body and fins are covered with blue spots. It has also been referred to as Danio sp "Ringlet" or Danio sp "Blue Ring". It has been described by Kullander and Fang, based on collection by Mr U Tin Win, hence its species name. It is known only from the Mogaung Chaung, Myitkyina District, Kachin State, northern Myanmar. This is a tributary of the Irrawaddy River.

<i>Badis</i> (fish) Genus of fishes

Badis is a genus of freshwater fish in the family Badidae found in South Asia, Southeast Asia and China. These species have a sharp spine on the opercle, soft and spinous parts of the dorsal fin contiguous, three spines in the anal fin, tubed pores in the lateral line, villiform teeth and a rounded caudal fin. In addition, they differ from the related genus Dario by being larger and displaying more involved parental care.

<i>Pseudosphromenus</i> Genus of fishes

Pseudosphromenus is a genus of medium-small gouramies native to south and southeast Asia.

<i>Pseudosphromenus cupanus</i> Species of fish

Pseudosphromenus cupanus, also known as the spiketail paradisefish is a species of medium-small gouramies native to southern India and Sri Lanka. This species is often found in shallow, slow-moving or stagnant water, such as ditches and paddy fields. P. cupanus eats insects and zooplankton. Males are known to gather eggs in its mouth, and to guard the nest after eggs are hatched. The male may build many nests, and periodically move the eggs between them.

<i>Indolestes gracilis</i> Species of damselfly

Indolestes gracilis is a species of damselfly in the family Lestidae. It is known only from Sri Lanka, South India and Cambodia.

<i>Laubuka</i> Genus of fishes

Laubuka is a genus of cyprinid fish found in South and Southeast Asia.

Laubuka tenella is a species of small fish of the minnow and carp family, Cyprinidae, and the Danioninae subfamily. It was described in 2018 from specimens collected in the small streams of Cox's Bazar and Teknaf in Bangladesh and Thandwe river drainage in Western Myanmar.

References

  1. 1 2 3 4 Kullander, Sven O.; Rahman, Md. Mizanur; Norén, Michael; Mollah, Abdur Rob (30 July 2015). "Danio annulosus, a new species of chain Danio from the Shuvolong Falls in Bangladesh (Teleostei: Cyprinidae: Danioninae)" (PDF). Zootaxa. 3994 (1): 53–68. doi:10.11646/zootaxa.3994.1.2. PMID   26250259.