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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Microcambevinae
Etymology: Listrura: Greek, listroo = to tie + Greek, oura = tail (Ref. 45335); gyrinura: Name gyrinura from the Greek words 'gyrinus' and 'ura', meaning 'tadpole' and 'tail', in reference to the tadpole-like caudal fin and caudal peduncle shape of the new species.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Subtropical
South America: Brazil.
Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm
Max length : 4.2 cm SL macho / no sexado; (Ref. 137686)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 6 - 8; Radios blandos anales: 8; Vértebra: 51 - 52. This species is distinguished from its congeners by the following set of characters: deep caudal peduncle, deeper than the preanal region of the body, as the result of an expanded skin fold involving procurrent caudal-fin rays; vertebrae 51 or 52; process on the dorsal surface of the autopalatine articular facet for the mesethmoid absent; mesethmoid cornu being slightly posteriorly folded; dorsal fin present; dorsal-fin origin at a vertical between the centra of the 31st to 33rd vertebrae, anal-fin origin at a vertical between the centra of the 32nd and 33rd vertebrae; ventral projection on the hyomandibula articular facet for the opercle absent; parhypural posterior process length about half or slightly less of the length between the anterior margin of the parurohyal head and the proximal limit of the posterior process; ventral procurrent caudal-fin rays 31-36 (Ref. 137686).
Body shape (shape guide): elongated; Cross section: circular.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Costa, W.J.E.M., C.R.M Feltrin, A.M. Katz, 2023. Field studies in small streams of the Atlantic Forest of southern subtropical Brazil reveal two new interstitial microcambevine catfishes of the genus Listrura (Siluriformes: Trichomycteridae). J. Nat. Hist. 57(9-12):475-489. (Ref. 137686)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: sin interés
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (10 of 100).
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