Pseudolaguvia
Encyclopedia
Pseudolaguvia is a genus
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) in 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...

 Erethistidae
Erethistidae
Erethistidae are a family of catfishes that originate from southern Asia.-Taxonomy:This family includes species previously placed in Sisoridae. They were removed because they were thought to be more closely related to the neotropical Aspredinidae than to the remaining sisorids due to a number of...

.

Biodiversity & distribution

Currently 13 accepted species, see Pseudolaguvia, with a compact distribution in India, Bangladesh, and Myanmar

Description

Externally, these fish resemble members of the sisorid
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:...

 catfish genus Glyptothorax
Glyptothorax
Glyptothorax is a genus of catfishes of the family Sisoridae. It is the most species-rich and widely distributed genus in the family with some 73 described species and new forms being discovered on a regular basis.-Distribution:...

. Pseudolaguvia is diagnosed by the presence of a short thoracic
Thorax
The thorax is a division of an animal's body that lies between the head and the abdomen.-In tetrapods:...

 adhesive apparatus with median depression; wide gill
Gill
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 nearly meeting one another on the underside of the body; serrations
Serrated Edge
Serrated Edge is the second album by Tempest. It was their first with a fiddler, and was released in 1992.-Tracks:#Hal-an Tow #Raggle Taggle Gypsy #A Kiss in the Morning Early...

 on anterior margin of pectoral fin spine pointing toward tip; smooth to granulate anterior margin on the dorsal fin
Dorsal fin
A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fishes, marine mammals , and the ichthyosaurs...

 spine; slender body; papillate upper lip; and 8–10 anal fin rays. Both the dorsal fin and pectoral fin have strong spines. The head and body are slightly depressed. The eyes are small, dorsal, and located in the middle of the head. The barbels
Barbel (anatomy)
A barbel on a fish is a slender, whiskerlike tactile organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, sturgeon, the zebrafish and some species of shark...

are annulated with black rings.

Ecology

Pseudolaguvia species inhabit hill streams and large rivers. P. tenebricosa is found in fast running, clear water; the river has a sandy bottom and numerous rocks and boulders, and aquatic vegetation is absent. P. inornata is from clear, shallow, moderately flowing streams with a predominantly sandy bottom. P. muricata is found in clear, shallow, slow-flowing streams with a mixed substrate of sand and detritusl; these fish are found amongst detritus in areas with current. P. ferula is also found in swift flowing waters with a mixed rocky/sandy bottom.
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