New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Near Threatened 🌡️ Tropical

Paulasquama Callis

Paulasquama callis Armbruster & Taphorn, 2011
Max Length
4.7 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
14.00/100
Typical Length
-
Depth Zone
-

📖 Overview

The collection area Waruma is a largely clearwater river with a slight black tint. Specimens collected in a riffle, in a shallow side channel over polished cobble and gravel with some larger rocks covered in a grasslike vegetation. The watershed is forested .

Scientific Name
Paulasquama callis
Authority
Armbruster & Taphorn, 2011
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
NT
Max Length
4.7 cm
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Paulasquama
Paulasquama
Species
Paulasquama Callis
Paulasquama callis

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 5. This species is distinguished from all other hypostomines by three unique autapomorphies: large, oval area lateral to the mesethmoid that is devoid of plates; plates in the dorsal series lateral to dorsal fin reduced to less than half what would be expected for a loricariid of its size; and, a fleshy keel along and slightly anterior to the preadipose plate and extending to dorsal caudal-fin simple ray along dorsal procurrent rays .: elongated.

🌀 Behaviour

Behavioural data for Paulasquama Callis is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: NW Guyana (Waruma River, tributary of the Mazaruni River).

🌿 Ecology

Zone Preferences
💧 Freshwater

📐 Morphometrics

Length–Weight Relationship: W = 0.01549 × L2.96 (TL)
Max TL
4.7cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
5

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
14.00/100
Low vulnerability
Body Shape
Elongated
Climate Zone
Tropical
Described By
Armbruster & Taphorn, 2011

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Paulasquama Callis ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.