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

💧 Freshwater Endangered 🌡️ Tropical

Tlaloc Portillorum

Tlaloc portillorum Matamoros & Schaefer, 2010
Max Length
7.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

The specimens were collected from two sites at 1340 m elevation in two small tributaries of the Río Calam in the Ulúa drainage. The creeks were 3-5 m wide, 20-40 cm deep and canopy cover was c. 60%; substratum dominated by large cobble, and creek margins featured emergent macrophytes where the species was collected. Associated fishes Alfaro huberi, Oreochromis niloticus and Rhamdia laticauda .

Scientific Name
Tlaloc portillorum
Authority
Matamoros & Schaefer, 2010
Habitat
Freshwater
Climate
Tropical
IUCN Status
EN
Max Length
7.9 cm
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Tlaloc
Tlaloc
Species
Tlaloc Portillorum
Tlaloc portillorum

🐟 Physical Description

Dorsal soft rays (total): 10 - 15; Anal soft rays: 9 - 14. Profundulus portillorum belongs to the P. labialis species group and can be distinguished from its congeners by having a smaller eye and fewer anal and pectoral-fin rays. Eye diameter typically less than one fourth of the head length (greater than 25% in all other Profundulus), 12 anal fin rays modally (≥ 13 in all other Profundulus), 14 pectoral-fin rays modally (≥ 15 in all other Profundulus). It differs from P. guatemalensis, P. oaxacae and P. punctatus by the absence of a humeral spot and by having less than half of the basal portion of the caudal fin densely covered by scales. It is distinguished from P. hildebrandi and P. labialis by having

🌀 Behaviour

Behavioural data for Tlaloc Portillorum is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical; 15°N - 14°N

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0138 × L3.04 (TL)
Max TL
7.9cm
Dorsal Rays
13
Anal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Matamoros & Schaefer, 2010

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Tlaloc Portillorum ↗
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.