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Labrisomus xanti — Details

Largemouth Blenny learn more about names for this taxon

Overview

Comprehensive Description

Description

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Common names: blenny (English), chalapo (Espanol), trambollo (Espanol)

Labrisomus xanti Gill, 1860

Large-mouth blenny

Body elongate; head broad, snout blunt; eye large; nostrils with cirri; a branched cirrus over each eye; heavily branched cirri on each side of nape; mouth large, slightly oblique, top rear jawbone exposed, not in a sheath; teeth on center front of roof of mouth, but not sides; dorsal fin XVII-XIX, 10-12, notch between spines and rays; anal rays II, 17-19; pectoral rays 17-19; 3 pelvic soft rays; 64-69 lateral line scales; head scaleless, except 10 or more scales embedded on upper margin of gill cover.

Greenish brown with about 8 darker bars along side; 2 thin dark stripes bordering a pale area behind and a little below eye; a black blotch at front of dorsal fin; numerous small white spots on lower part of head and body.

Maximum size to 17.8 cm.

Habitat: weed covered rocky shores.

Depth: 1-10 m.

Central Baja California to the central Gulf of California to near Acapulco, the Revillagigedos islands. The most common member of the genus at most localities in the Gulf of California.

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Biology

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Shallow water diurnal predator that feeds mostly on benthic crustaceans.

Thomson, D.A. 1987 Reef fishes of the Sea of Cortez. The rocky-shore fishes of the Gulf of California. The University of Arizona Press, Tucson. 302 p. (Ref. 5592) http://www.fishbase.org/references/FBRefSummary.php?id=5592&speccode=8256

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Distribution

Range Description

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This species is endemic to the Eastern Pacific, and is found from central Baja California and the central Gulf of California to Acapulco, central Mexico, including the Revillagigedo islands and the Tres Marias Islands.

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Depth

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Depth Range (m): 1 (S) - 10 (S)

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Zoogeography

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See Map (including site records) of Distribution in the Tropical Eastern Pacific

Global Endemism: All species, East Pacific endemic, Tropical Eastern Pacific (TEP) endemic

Regional Endemism: All species, TEP endemic, Continent + Island (s), Continent, Island (s)

Residency: Resident

Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California), Northern Subtropical (Cortez Province + Sinaloan Gap), Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)

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Eastern Central Pacific: Bahía Sebastián Vizcaino to Bahía Tenacatita, Jalisco in Mexico.

Thomson, D.A. 1987 Reef fishes of the Sea of Cortez. The rocky-shore fishes of the Gulf of California. The University of Arizona Press, Tucson. 302 p. (Ref. 5592) http://www.fishbase.org/references/FBRefSummary.php?id=5592&speccode=8256

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Physical Description

Morphology

Size

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Length max (cm): 17.8 (S)

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Size

Max. size

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17.8 cm TL (male/unsexed; (Ref. 5592))

Thomson, D.A. 1987 Reef fishes of the Sea of Cortez. The rocky-shore fishes of the Gulf of California. The University of Arizona Press, Tucson. 302 p. (Ref. 5592) http://www.fishbase.org/references/FBRefSummary.php?id=5592&speccode=8256

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Type Information

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Paralectotype; Syntype for Labrosomus xanti Gill
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Xantus
Locality: Cape St. Lucas, Baja California Sur, Mexico, Pacific

Paralectotype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.; Syntype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.

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Paralectotype; Syntype for Labrosomus xanti Gill
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Xantus
Locality: St. Lucas, Under Rocks On Cerro Blanco., Baja California Sur, Mexico, Pacific

Paralectotype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.; Syntype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.

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Lectotype; Syntype for Labrosomus xanti Gill
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Xantus
Locality: St. Lucas., Baja California Sur, Mexico, Pacific

Lectotype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.; Syntype: Springer, V. G. & Orrell, T. M. 1996. Smithsonian Contributions to Zoology. No. 576: 22.; Gill, T. N. 1860. Proceedings of the Academy of Natural Sciences of Philadelphia. 12: 107.

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Ecology

Habitat

Habitat and Ecology

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Habitat and Ecology

This reef-associated species found in weed-covered, rocky shores and also in coral reefs to depths of 10m.

Systems

Marine

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Depth range based on 18 specimens in 1 taxon.
Water temperature and chemistry ranges based on 5 samples.

Environmental ranges
  Depth range (m): 1 - 12
  Temperature range (°C): 20.794 - 24.554
  Nitrate (umol/L): 0.162 - 5.631
  Salinity (PPS): 34.642 - 35.261
  Oxygen (ml/l): 4.733 - 4.879
  Phosphate (umol/l): 0.429 - 1.098
  Silicate (umol/l): 3.286 - 12.886

Graphical representation

Depth range (m): 1 - 12

Temperature range (°C): 20.794 - 24.554

Nitrate (umol/L): 0.162 - 5.631

Salinity (PPS): 34.642 - 35.261

Oxygen (ml/l): 4.733 - 4.879

Phosphate (umol/l): 0.429 - 1.098

Silicate (umol/l): 3.286 - 12.886

Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Habitat

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Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

Habitat: Reef (rock &/or coral), Reef only, Rocks, Reef associated (reef + edges-water column & soft bottom)

FishBase Habitat: Reef Associated

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Environment

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reef-associated; marine

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Trophic Strategy

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Shallow water diurnal predator that feeds mostly on benthic crustaceans.

Thomson, D.A. 1987 Reef fishes of the Sea of Cortez. The rocky-shore fishes of the Gulf of California. The University of Arizona Press, Tucson. 302 p. (Ref. 5592) http://www.fishbase.org/references/FBRefSummary.php?id=5592&speccode=8256

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Feeding

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Feeding Group: Carnivore

Diet: mobile benthic worms, mobile benthic crustacea (shrimps/crabs), sponges/seasquirts/bryozoa, bony fishes

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Life History and Behavior

Reproduction

Reproduction

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Egg Type: Benthic, Pelagic larva

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Labrisomus xanti

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Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 3
Species With Barcodes: 1

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Conservation

Conservation Status

IUCN Red List Assessment

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Red List Category

LC

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2010

Assessor/s

Hastings, P.

Reviewer/s

Carpenter, K., Polidoro, B., Livingstone, S. (Global Marine Species Assessment Team)

Justification

This species is widespread in the Eastern Pacific, and is abundant in many parts of its range. There are no known major threats to this species, and no current indication of population decline. It is listed as Least Concern.

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Conservation status

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IUCN Red List: Not evaluated / Listed

CITES: Not listed

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Trends

Population

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Population

This species is the most common member of the genus at most localities in the Gulf of California, and one of the most abundant primary reef fishes in the Gulf (Thomson et al. 2002).

Population Trend

Unknown

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Threats

Threats

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Major Threats

There are no major threats known for this species.

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Least Concern (LC)

IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. http://www.fishbase.org/references/FBRefSummary.php?id=57073

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Management

Conservation Actions

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Conservation Actions

There are no known conservation measures for this species. However, this species distribution falls partially into a number of Marine Protected Areas in the Eastern Pacific region (WDPA 2006), the including Cabo Pulmo and the Islas Marias Biosphere Reserve.

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Wikipedia

Labrisomus xanti

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Labrisomus xanti, known commonly as the Largemouth blenny, is a species of labrisomid blenny.^[1]

References

^ Labrisomus xanti at www.fishbase.org.

This Perciformes article is a stub. You can help Wikipedia by expanding it.

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