dcsimg

Diagnostic Description

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Differs from all congeners, except Loricaria nickeriensis, by attaining a small adult size, reaching sexual maturity at less than 8.0 cm SL. Distinguished further from Loricaria nickeriensis and Amazon basin Loricaria by the following combination of characters: surfaces of head with prominent crests and predorsal plates with numerous well developed odontodes arranged in conspicuous linear rows; anterior abdominal area covering pectoral girdle naked, with occasional small isolated plates at bases of pectoral fins, pre-anal shield and space between lateral abdominal plates with large polygonal plates; total plates in lateral series 31-32 (modally 31); and post-anal plates 18-19 (modally 18). One specimen from the lower rio Tocantins differs from other collected specimens from the lower Amazon by having a larger eye and maximum orbital diameter of 20.4% HL (vs. 15.4-17.7% HL) and lightly developed iris operculum (vs. absent); and conspicuous pigment pattern consisting of brown blotches on the head and fins with five dark saddles on the dorsum of the body (vs. patterns in Amazon specimens similar, but diffuse) (Ref. 79031).
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Biology

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Reportedly collected using bottom trawls at depths from 3 to 29 m and at distances of 15 to 1500 m from the shoreline, as well as over silt and organic detritus. Aquatic insect larva, sclerotized body parts of unidentified insects, organic detritus and sand were found in the stomach contents of a single specimen measuring 7.31 cm SL (Ref. 79031).
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Loricaria pumila

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Loricaria pumila[1] is a species of catfish in the family Loricariidae. It is native to South America, being known from Brazil, where it occurs in the Amazon River basin, near the mouths of the Tapajós and the Pará River, including the lower Tocantins River. It is reportedly typically found at depths between 3 and 29 m (10 and 95 ft) and distances of 15 to 1500 m (49 to 4921 ft) from the shoreline, in environments characterized by a substrate of silt and organic detritus. An analysis of the stomach contents of a single individual found evidence of feeding on insects and aquatic insect larvae, as well as sand and detritus. The species reaches 8.1 cm (3.2 inches) in standard length and is believed to be a facultative air-breather. Its specific epithet, pumila, is derived from Latin and means "dwarf", referring to the small adult size of the species.[2]

References

  1. ^ Thomas, Matthew R.; Py-Daniel, Lúcia H. Rapp (2008). "Three new species of the armored catfish genus Loricaria (Siluriformes: Loricariidae) from river channels of the Amazon basin". Neotropical Ichthyology. 6 (3): 379–394. doi:10.1590/S1679-62252008000300011.
  2. ^ Froese, Rainer; Pauly, Daniel, eds. (2022). "Loricaria pumila". FishBase.{{cite web}}: CS1 maint: url-status (link)
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Loricaria pumila: Brief Summary

provided by wikipedia EN

Loricaria pumila is a species of catfish in the family Loricariidae. It is native to South America, being known from Brazil, where it occurs in the Amazon River basin, near the mouths of the Tapajós and the Pará River, including the lower Tocantins River. It is reportedly typically found at depths between 3 and 29 m (10 and 95 ft) and distances of 15 to 1500 m (49 to 4921 ft) from the shoreline, in environments characterized by a substrate of silt and organic detritus. An analysis of the stomach contents of a single individual found evidence of feeding on insects and aquatic insect larvae, as well as sand and detritus. The species reaches 8.1 cm (3.2 inches) in standard length and is believed to be a facultative air-breather. Its specific epithet, pumila, is derived from Latin and means "dwarf", referring to the small adult size of the species.

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