Cymolutes praetextatus, Knife razorfish

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Cymolutes praetextatus (Quoy & Gaimard, 1834)

Knife razorfish
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Cymolutes praetextatus   AquaMaps   Data sources: GBIF OBIS
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Image of Cymolutes praetextatus (Knife razorfish)
Cymolutes praetextatus
Picture by Greenfield, J.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Eupercaria/misc (Various families in series Eupercaria) > Labridae (Wrasses) > Cheilininae
Etymology: Cymolutes: Greek, kymo = waves + Greek, lytes, lyto = to liberate.  More on authors: Quoy & Gaimard.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 2 - 10 m (Ref. 90102).   Tropical; 21°N - 18°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: East Africa south to Natal, South Africa (Ref. 4392) and east to the Society Islands.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm SL male/unsexed; (Ref. 9823)

Short description Morphology | Morphometrics

Dorsal spines (total): 9 - 10; Dorsal soft rays (total): 12-13; Anal spines: 2-3; Anal soft rays: 11 - 12. Has a broad yellow lateral stripe (Ref. 37816).

Biology     Glossary (e.g. epibenthic)

A solitary species (Ref. 90102) that inhabits reef flats and shallow lagoons, in sandy, current-swept areas with rubble and weed (Ref. 9710). Feeds on small benthic invertebrates (Ref. 89972). Capable of diving into the sand with the approach of danger. Rarely caught by fishers or aquarium collectors (Ref. 9823).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator : Westneat, Mark | Collaborators

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 25 March 2009

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource | Sea Around Us

More information

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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 27.2 - 29.3, mean 28.6 °C (based on 1456 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (35 of 100) .
Nutrients (Ref. 124155):  Calcium = 69.5 [36.5, 126.3] mg/100g ; Iron = 0.722 [0.445, 1.309] mg/100g ; Protein = 18 [15, 20] % ; Omega3 = 0.113 [0.064, 0.197] g/100g ; Selenium = 31.6 [15.9, 59.2] μg/100g ; VitaminA = 181 [61, 616] μg/100g ; Zinc = 1.58 [1.02, 2.88] mg/100g (wet weight);