Philippines country information

Common names: Rhinocerus triplefin
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality (Ref. 48636). Museum: NW side of Putic I., Cuyo Is., Palawan, USNM 222370 (holotype, 2.82 cm SL, male); USNM 221921. Cocoro I., USNM 221917, 221920. Batangas, Sombrero I., AMS I.21909-009. Batanes Prov., Balugan Bay, near Desquid Point, Batan I., ANSP 163515; USNM 293944, 325727 (Ref. 27223). Also Ref. 6211, 90102.
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Werner, T.B. and G.R. Allen, 2000
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Rhinoceros triplefin, Rhino threefin, 锉角弯线鳚, ... more

Main reference

Fricke, R. 1994. (Ref. 13227)
References | Biblio | Coordinator : Fricke, Ronald | Collaborators

Size / Weight / Age

Max length : 4.0 cm TL male/unsexed; (Ref. 48636)

Environment

Marine; demersal; depth range 0 - 6 m (Ref. 90102)

Climate / Range

Tropical, preferred ?

Distribution

Western Pacific: Widespread in the area, from the Philippines, Viet Nam, Indonesia (Borneo) to the Solomon Islands (Ref. 13227). Recently collected from Fiji and Tonga (Williams pers. comm.). New locality records from Thailand and the Andaman Sea (Ref. 27223).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 17 - 18; Dorsal soft rays (total): 10-11; Anal spines: 1; Anal soft rays: 20; Vertebrae: 37. Trunk without longitudinal stripes; symphyseal dentary pores 1; upper lip with proboscis-like extension on males, head with horizontal yellowish or bluish white line from the upper rim of upper jaw to opercle (Ref. 94457). Males are easily recognized by the extended nose and change color to display to females with an electric blue line below the eye, shaded by black below (Ref. 48636). Also Ref. 94101.

Adults inhabit clear coastal reefs with algae covered rocky boulders, usually in small groups (Ref. 48636). They occur in very shallow depths on rock surfaces and under ledges (Ref. 48636). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114). Minimum depth of 0 m reported from Ref. 58018.

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

Threat to humans

Harmless

Human uses

Fisheries: of no interest; aquarium: potential

More information

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Ecology
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Common names
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Predators
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Eggs
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Age/Size
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Length-weight
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Morphometrics
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References
Aquaculture
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Collaborators
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Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.0 ±0.3 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278)
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Vulnerability (Ref. 59153)
Low vulnerability (10 of 100)

Price category (Ref. 80766)
Unknown

Helcogramma rhinoceros Hansen, 1986