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Crocodilichthys gracilis Allen and Robertson, 1991
LIZARD TRIPLEFIN
Life   Vertebrata   Fish   Tripterygiidae   Crocodilichthys

Crocodilichthys gracilis
© Copyright Ross Robertson, 2006 · 12
Crocodilichthys gracilis

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Crocodilichthys gracilis
© Copyright Gerald Allen, 2006 · 0
Crocodilichthys gracilis
español

Overview
Main identification features
  • eye: no cirrusiris: red and black
  • flank - row brown spots + white dashes
  • tail: base white and black, fin cream and black
  • snout dark
Body long and slender; dorsal rays III + XVII + 12 or 13, segmented rays branched except first and last 3-5 rays; anal rays I-II, 25 or 26; pectoral rays 15; pelvic rays separate; lateral line with 19-20 tubed scales followed two rows lower by 17-23 notched scales; total scales in longitudinal series 44-47; eye cirrus absent, but microscopic papillae present on upper rim of eye; scales small, absent on head, breast, belly, and pectoral-fin base.

Pale tan or pinkish;snout dark; iris with red and black bars; body with longitudinal rows of red-brown spots, the spots separated by white dashes along middle of side; a prominent black band, with white anterior border, around base of tail fin.

Size: attains 8.3 cm.

Inhabits rocky shores and steep slopes.

Depth: 3- 40 m.

Western and central eastern Gulf of California.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California); Northern Subtropical (Cortez Province + Sinaloan Gap).
Depth Range Max: 40 m.
Depth Range Min: 3 m.
Diet: mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves; mobile benthic worms.
Eastern Pacific Range: Northern limit=32; Southern limit=24; Western limit=-115; Eastern limit=-110; Latitudinal range=8; Longitudinal range=5.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 8.3 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Cortez province endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Aburto-Oropeza , O. and Balart, E. F., 2001., Community structure of reef fish in several habitats of a rocky reef in the Gulf of California., Marine Ecology, 22:283-305.
  • Allen , G.R. and Robertson, D.R., 1991., Descriptions of two new genera and four new species of triplefins (Pisces: Tripterygiidae) from the tropical Eastern Pacific., Revue Francaise de Aquariologie, 18(3):79-82.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Gilligan, M.R., 1991., Bergmann ecogeographic trends among triplefin blennies (Teleostei: Tripterygiidae) in the Gulf of California, Mexico., Environmental Biology of Fishes, 31:301-305.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Sánchez Ortíz , C. , Arreola Robles , J. L. , Aburto Oropeza , O. and Cortés Hernández, M., 1997., Peces de arrecife en la región de La Paz, B.C.S.. En Urbán Ramírez, J. y M. Ramírez Rodríguez (Eds.). La Bahía de La Paz investigación y conservación., Universidad Autónoma de Baja California Sur:189-200.
  • Thomson , D.A. , Findley , L.T. and Kerstitch, A.N., 2000., Reef fishes of the Sea of Cortez., University of Texas Press(Revised Ed.):353.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Following modified from FishBase
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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Crocodilichthys&speciesname=gracilis ---> http://www.fishbase.org/summary/Crocodilichthys-gracilis.html

Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Crocodilichthys gracilis   Allen & Robertson, 1991

Lizard triplefin Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Crocodilichthys gracilis   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Google image Image of Crocodilichthys gracilis (Lizard triplefin) Crocodilichthys gracilis
Picture by Robertson, R.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Crocodilichthys: Greek, krokodeilos = crocodyle + Greek, ichthys = fish (Ref. 45335 ) .

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

Marine; demersal; depth range 10 - 38 m (Ref. 11482 ).   Tropical

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

Eastern Central Pacific: Gulf of California.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 6.4 cm TL male/unsexed; (Ref. 11482 )

Biology     Glossary (e.g. epibenthic)

Adults inhabit rocky shores and steep slopes. They feed on tiny invertebrates and algae (Ref. 11482 ). 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 from Ref. 58018.

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

Main reference Upload your references | References | Coordinator : Fricke, Ronald | Collaborators

Allen, G.R. and D.R. Robertson , 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482 )

IUCN Red List Status (Ref. 115185 )

  Least Concern (LC)  

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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FAO(Publication : search ) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969 ): 20.6 - 28, mean 25.2 (based on 24 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00562 (0.00295 - 0.01072), b=3.03 (2.86 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245 ). Trophic Level (Ref. 69278 ):  2.7   ±0.24 se; Based on food items. Resilience (Ref. 69278 ):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). Vulnerability (Ref. 59153 ):  Low vulnerability (11 of 100) .

Entered by Garilao, Cristina V. Modified by Luna, Susan M. Fish Forum
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