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Lithogenes villosus Eigenmann, 1909

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Image of Lithogenes villosus
No image available for this species;
drawing shows typical species in Loricariidae.

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> Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Lithogeninae
Etymology: Lithogenes: Greek, lithos = stone + Greek, gene = birth, race (Ref. 45335).
More on author: Eigenmann.

Environment: milieu / climate zone / depth range / distribution range экология

; пресноводный демерсальный. Tropical

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

South America: Essequibo River drainage, Potaro River in Guyana.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 4.4 cm SL самец/пол неопределен; (Ref. 48602)

Краткое описание определительные ключи | морфология | морфометрия

членистые (мягкие) лучи спинного плавника (общее число) : 7; членистые (мягкие) лучи анального плавника: 7. This species is distinguished from its congeners by the following characters: presence of 8-branched pectoral-fin rays (vs. nine); single (vs. multiple) lateral cheek plate developed as a thin rod (vs. expanded, laminar); trunk plates of dorsal and ventral series large, contacting plates of midline series at least posteriorly (vs. plates small, not contacting those of midline series posteriorly); presence of a dark pigment band on snout (vs. snout region uniformly pigmented or mottled); further distinguished from Lithogenes wahari having odontodes along entire length of the ventral surface of the first pelvic-fin ray (vs. none from proximal portion of ventral surface); accessory premaxillary teeth present (vs. none); anal fin dusky (vs. intense pigment band along fin base and diffuse spot at midlength of fin rays); adipose fin with an ossified spine along its leading edge (vs. no spine); further distinguished from L. valencia by the presence of asymmetrically bifid teeth (vs. tooth cusps symmetrically bifid), 7 (vs. 5) branched anal-fin rays (Ref. 83588).

биология     глоссарий (например epibenthic)

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор : Fisch-Muller, Sonia | соавторы

Schaefer, S.A. and F. Provenzano, 2008. The Lithogeninae (Siluriformes, Loricariidae): anatomy, interrelationships, and description of a new species. Am. Mus. Novit. 3637:1-49. (Ref. 83588)

Статус Красного Списка МСОП (Ref. 130435)

  Под угрозой исчезновения (EN) (B1ab(iii)+2ab(iii)); Date assessed: 30 September 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless





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ресурсы в Интернет

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [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).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).