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💧 Freshwater Least Concern 🌡️ Tropical

Petrocephalus Microphthalmus

Petrocephalus microphthalmus Pellegrin, 1909
Max Length
5.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Petrocephalus Microphthalmus (Petrocephalus microphthalmus), first described by Pellegrin, 1909 is a small fish in the family Mormyridae (order Osteoglossiformes). Adults typically reach 5.20 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Petrocephalus microphthalmus
Authority
Pellegrin, 1909
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
5.2 cm
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Osteoglossiformes
Osteoglossiformes
Family
Mormyridae
Mormyridae
Genus
Petrocephalus
Petrocephalus
Species
Petrocephalus Microphthalmus
Petrocephalus microphthalmus

🐟 Physical Description

Dorsal soft rays (total): 18 - 21; Anal soft rays: 25 - 29. Petrocephalus microphthalmus is distinguished from all other Petrocephalus species in Central Africa by the following combination of characteristics: short dorsal fin with only 18 or fewer branched rays, long anal fin with 23-27 branched rays, eye small (HL/ED=4,1-4,8), mouth moderately wide, only 9-11 teeth in the upper jaw, 14-20 teeth in the lower jaw, no more than 10 scales between the anterior base of the anal fin and the lateral line . Absence of black pigment patches, except for a characteristic black blotch on the anterior dorsal fin rays near the origin of this fin; body silvery/purplish, iridescent .: fusiform / normal.

🌀 Behaviour

Behavioural data for Petrocephalus Microphthalmus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical north to the more southern Kouilou-Niari River, including the rivers Ntem and Ogowe (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01549 × L2.86 (TL)
Max TL
5.2cm
Dorsal Rays
20
Anal Rays
27

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Pellegrin, 1909

🌐 Names & Taxonomy

Language Common Names
🌍CES Rypoun Malooký
🇷🇺Russian Малоглазый камнеголов

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 109 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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