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

🌊 Marine Least Concern 🌡️ Tropical

Rippled rockskipper

Istiblennius edentulus Forster & Schneider, 1801
Max Length
16 cm
Max Weight
Lifespan
Trophic Level
2
Depth
0–5 m
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
Depth Zone
reef

📖 Overview

Facultative air-breathing ; Intertidal . Adults are common in areas with large rubble pieces which are often used to built breakwaters or to support jetty-pylons . They hide in cracks or holes when not feeding. They jump out of the water in energetic skippings to another pool when pursued . May remain out of water under rocks or seaweeds . They breathe air when out of water . Feeds on filamentous algae . Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .

Scientific Name
Istiblennius edentulus
Authority
Forster & Schneider, 1801
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
16 cm
Depth Range
0–5 m
Latitude
32°S – 32°N
Trophic Level
2
Resilience
High
Vulnerability
27.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 19 - 21; Anal spines: 2; Anal soft rays: 21 - 23. Males darkly dusky with 5-6 pairs of bands on body and pale stripes on dorsal fin; develop a crest. Females paler in color, bands broken into spots posteriorly, dorsal fin spotted .: elongated.

🌀 Behaviour

Behavioural data for Rippled rockskipper is currently being reviewed.

🦐 Diet

Diet information for Rippled rockskipper is currently being compiled.

🥚 Reproduction

Distinct pairing .

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 0 - 5 m , usually 0 - 1 m . Tropical; 32°N - 32°S East Africa to the Line, Marquesan, and Tuamoto islands, north to southern Japan, south to Lord Howe and Rapa.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
2
Food Items

filamentous algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3 (TL)
Max TL
16cm
Dorsal Spines
13
Dorsal Rays
20
Anal Spines
2
Anal Rays
22

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Latitude Range
32°N – 32°S
Described By
Forster & Schneider, 1801

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Coral Blenny · Edentulate Blenny · Reef Blenny · Rippled Blenny · rippled rockskipper · rockskipper · Smooth-lipped Blenny · smoothlipped blenny · Toothless Blenny
🇸🇦Arabic Arfaj
🌍CES slizoun bezzubý
🇫🇷French Blennie à rides · Blennie ridée
🇮🇹Italian Bavosa sdentata
🇯🇵Japanese Kaeru-uo · Nisekaeruuo · カエルウオ · ニセカエルウオ
🇰🇷Korean 대강베도라치
🌍MAH Jibalan
🌍MAL Kakkadan · കക്കാടന്
🇵🇹Portuguese Blênio-banguela
🇷🇺Russian Узорчатый истибленниус
🌍TAH 'o'opu
🇨🇳Chinese 暗紋蛙鳚

Scientific Synonyms

Scientific Name Author Year Status
Alticops edentulus Forster & Schneider 1801 Synonym
Blennius cinereus Castelnau 1875 Synonym
Blennius edentulus Forster & Schneider 1801 Synonym
Blennius truncatus Forster 1801 Synonym
Istiblennius edentululus Forster & Schneider 1801 Synonym
Istiblennius enoshimae Jordan & Snyder 1902 Synonym
Istiblennius enosimae Jordan & Snyder 1902 Synonym
Istilbennius edentulus Forster & Schneider 1801 Synonym
Salarias atratus Macleay 1882 Heterotypic
Salarias atrimarginatus Fowler 1946 Synonym
Salarias azureus Seale 1906 Synonym
Salarias diproktopterus Bleeker 1857 Synonym
Salarias fluctatus Fowler 1945 Synonym
Salarias garmani Jordan & Seale 1906 Synonym
Salarias gilberti Bryan & Herre 1903 Synonym
Salarias insulae Ogilby 1899 Synonym
Salarias marcusi Bryan & Herre 1903 Synonym
Salarias melanocephalus Bleeker 1849 Synonym
Salarias quadricornis Valenciennes 1836 Synonym
Salarias rechingeri Steindachner 1906 Synonym
Salarias sindonis Jordan & Seale 1906 Synonym
Salarias sumatranus Bleeker 1851 Synonym
Scartella enosimae Jordan & Snyder 1902 Synonym
Scartichthys basiliscus Fowler 1904 Synonym
Scartichthys enosimae Jordan & Snyder 1902 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 28 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Rippled rockskipper ↗
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.