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💧 Freshwater Endangered 🌡️ Tropical

Lithogenes Villosus

Lithogenes villosus Eigenmann, 1909
Max Length
4.4 cm
Max Weight
Lifespan
Trophic Level
Depth
Climate
Tropical
Resilience
Vulnerability
13.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Overview information for Lithogenes Villosus is currently being compiled by our editorial team.

Scientific Name
Lithogenes villosus
Authority
Eigenmann, 1909
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
EN
Max Length
4.4 cm
Vulnerability
13.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Lithogenes
Lithogenes
Species
Lithogenes Villosus
Lithogenes villosus

🐟 Physical Description

Dorsal soft rays (total): 7; Anal soft rays: 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 .: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Lithogenes Villosus is currently being reviewed.

🦐 Diet

Diet information for Lithogenes Villosus is currently being compiled.

🥚 Reproduction

Reproduction data for Lithogenes Villosus is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Essequibo River drainage, Potaro River in Guyana.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
4.4cm
Dorsal Rays
7
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
13.00/100
Low vulnerability
Body Shape
Elongated
Climate Zone
Tropical
Described By
Eigenmann, 1909

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