Myersglanis
Encyclopedia
Myersglanis is a genus
of catfish
es (order
Siluriformes) of the family
Sisoridae
. It includes two species
, M. blythii and E. jayarami.
and Irrawaddy
drainages in India
and Nepal
. M. blythii inhabits the Ganges drainage in Nepal and possibly from Pharping, Nepal. M. jayarami lives in the Irrawaddy drainage in India; it is found in the Lainye River of the Chindwin River
basin in this drainage.
M. blythii occurs in streams and is common in hill streams; it is also found in mountain rapids.
openings not extending onto the underside (venter), homodont dentition with pointed teeth in both jaws, the tooth patches in upper jaw joined and not produced posteriorly at the sides, and 10 or 16–19 branched pectoral rays. The head is depressed. The body is elongate and depressed anteriorly. The eyes are minute, dorsally located, and under the skin (subcutaenous). The lips are thick, fleshy, and papillated.
M. blythii grows to a length of about 7.3 centimetre
s (2.9 in
) TL
.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of catfish
Catfish
Catfishes are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the heaviest and longest, the Mekong giant catfish from Southeast Asia and the second longest, the wels catfish of Eurasia, to detritivores...
es (order
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...
Siluriformes) of the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Sisoridae
Sisoridae
Sisoridae is a family of catfishes . These Asian catfish live in fast-moving waters and often have adaptations that allow them to adhere to objects in their habitat.-Taxonomy:...
. It includes two species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
, M. blythii and E. jayarami.
Distribution and habitat
Myersglanis originates from the GangesGanges River
The Ganges or Ganga, , is a trans-boundary river of India and Bangladesh. The river rises in the western Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of North India into Bangladesh, where it empties into the Bay of Bengal. By discharge it...
and Irrawaddy
Ayeyarwady River
The Irrawaddy River or Ayeyarwady River is a river that flows from north to south through Burma . It is the country's largest river and most important commercial waterway. Originating from the confluence of the N'mai and Mali rivers, it flows relatively straight North-South before emptying through...
drainages in India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
and Nepal
Nepal
Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked sovereign state located in South Asia. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India...
. M. blythii inhabits the Ganges drainage in Nepal and possibly from Pharping, Nepal. M. jayarami lives in the Irrawaddy drainage in India; it is found in the Lainye River of the Chindwin River
Chindwin River
The Chindwin River is a river in Burma , and the largest tributary of the country's chief river the Ayeyarwady . It flows entirely within Burma and is known as Ning-thi to the Manipuris.-Source:...
basin in this drainage.
M. blythii occurs in streams and is common in hill streams; it is also found in mountain rapids.
Description
Myersglanis species can be distinguished by the presence of a continuous groove behind the lips (post-labial groove), the gillGill
A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water, afterward excreting carbon dioxide. The gills of some species such as hermit crabs have adapted to allow respiration on land provided they are kept moist...
openings not extending onto the underside (venter), homodont dentition with pointed teeth in both jaws, the tooth patches in upper jaw joined and not produced posteriorly at the sides, and 10 or 16–19 branched pectoral rays. The head is depressed. The body is elongate and depressed anteriorly. The eyes are minute, dorsally located, and under the skin (subcutaenous). The lips are thick, fleshy, and papillated.
M. blythii grows to a length of about 7.3 centimetre
Centimetre
A centimetre is a unit of length in the metric system, equal to one hundredth of a metre, which is the SI base unit of length. Centi is the SI prefix for a factor of . Hence a centimetre can be written as or — meaning or respectively...
s (2.9 in
Inch
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot...
) TL
Fish measurement
Fish measurement refers to the measuring of the length of individual fish and of various parts of their anatomy. These data are used in many areas of ichthyology, including taxonomy and fisheries biology.-Overall length:...
.