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Leptorhamdia kamilai Silva, G. de S. C., Reia, L., Souza, C. S., Ywamoto, E. V., & Oliveira, C., 2026

Image contributors to this species:

Eric V. Ywamoto (1) Gabriel de S. C. Silva et al. 2026 (3)

ScotCat Sources:

Other Sources:

Relevant Information:

Abstract: Brachyglaniini is a recently described tribe of Heptapterinae, composed of four genera: Brachyglanis, Gladioglanis, Leptorhamdia, and Myoglanis. Expeditions to the Aripuanã and Tapajós River basins revealed an undescribed species of Brachyglaniini, characterised by a conspicuous light-coloured band posterior to the head. Our phylogenetic results provide strong evidence that this new Brachyglaniini species belongs to the genus Leptorhamdia and is closely related to L. marmorata and L. aspredinoides. In addition to the colour pattern, the new species can be distinguished from its congeners by having 19-22 anal-fin rays and 47 vertebrae. Habitat: The new species Leptorhamdia kamilai is known from tributaries of the upper Rio Arinos and Juruena in the Rio Tapajós basin and from tributaries of the Rio Aripuanã in the Rio Madeira basin, Mato Grosso State, central Brazil. Etymology: The genus name Leptorhamdia: leptós, thin or slender, referring to elongate body of L. essequibensis; Rhamdia, a related genus [replacement name for Leptoglanis Eigenmann 1912, preoccupied by Leptoglanis Boulenger 1902 in Amphiliidae]. The specific name, kamilai: Honours our dear friend Dr Kamila Mayumi Duarte Kuabara, an entomologist and lab manager of the Ornithology Department at The Academy of Natural Sciences of Drexel University. A noun in a genitive case.

Common Name:

None

Synonyms:

None

Family:

Heptapteridae

Distribution:

South America: Tributaries of the upper Rio Arinos and Juruena in the Rio Tapajós basin and from tributaries of the Rio Aripuanã in the Rio Madeira basin, Mato Grosso State, central Brazil.

Size:

7.0cm. (2¾ins)

Temp:

23-25°C (73-77°F)

p.H.

6.0-7.2.

Reference:

Fish in the News 2026.
Silva, G. de S. C., Reia, L., Souza, C. S., Ywamoto, E. V., & Oliveira, C. (2026). Phylogenetic placement and description of a new species of Leptorhamdia (Siluriformes: Heptapteridae) from the Amazon basin. Neotropical Ichthyology, 24(1), e250037.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.

Family: Heptapteridae Back to Ident-A-Cat Click on Thumbnails

Leptorhamdia kamilai
Paratype-live specimen-Brazil, Mato Grosso State. Rio Tapajós basin

Leptorhamdia kamilai
Lateral view-holotype-Brazil, Mato Grosso State, Campos de Júlio Municipality, Rio Juruena, PCH Segredo, 13°13’27.6”S 59°01’34.4”W

Leptorhamdia kamilai
Dorsal view-holotype-Brazil, Mato Grosso State, Campos de Júlio Municipality, Rio Juruena, PCH Segredo, 13°13’27.6”S 59°01’34.4”W

Leptorhamdia kamilai
Ventral view-holotype-Brazil, Mato Grosso State, Campos de Júlio Municipality, Rio Juruena, PCH Segredo, 13°13’27.6”S 59°01’34.4”W

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