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🌊 Marine Least Concern 🌡️ Tropical

Butterfly whiptail

Pentapodus setosus Valenciennes, 1830
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
5–50 m
Climate
Tropical
Resilience
High
Vulnerability
24.00/100
Typical Length
15 cm
Depth Zone
reef

📖 Overview

Found in silty coastal bays to deep muddy habitats offshore. Swims on open substrate adjacent to reefs, usually in small aggregations. Often with large bottom feeders such as stingrays to catch disturbed prey . Juveniles found close to reefs. Feeds on small crustaceans. Also taken by bamboo stake trap in Thailand. Used also in fish balls, fried and as duck food. Not much appreciated for food, and low priced.

Scientific Name
Pentapodus setosus
Authority
Valenciennes, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
18 cm
Depth Range
5–50 m
Latitude
12°S – 20°N
Trophic Level
3.5
Resilience
High
Vulnerability
24.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7. Head scales reaching forward to between level of anterior margin of eyes and posterior nostrils. Suborbital naked. Lower limb of preopercle naked. Pelvic fins short, not reaching level of anus. Axillary scale present. Color: Pale brownish on back, lower part of body whitish. Presence of two bluish stripes across snout, first from middle of eye to tip of snout, second from upper lip to lower margin of eye. Top of snout dusky.: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Butterfly whiptail is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 5 - 50 m . Tropical; 20°N - 12°S, 97°E - 135°E Central Pacific: Philippines, South China Sea, Singapore, and Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.5±0.5
Food Items

small crustaceans

📐 Morphometrics

Length–Weight Relationship: W = 0.01318 × L2.98 (TL)
Max TL
18cm
Dorsal Spines
10
Dorsal Rays
9
Anal Spines
3
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
24.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
20°N – 12°S
Described By
Valenciennes, 1830

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