Overview

Comprehensive Description

Description

  Common names: razorfish (English), cuchillo (Espanol)
 
Xyrichtys mundiceps Gill, 1862


Cape razorfish,     Gulf razorfish


Head and body strongly compressed; head profile steep, with a fleshy longitudinal keel at front; head large (head depth ~ 83% head length, head length 25% of TL); eye on upper ½ of head; both jaws with canines at front, lower jaw without rear canine tooth; dorsal fin continuous, IX, 11, spines regularly spaced, origin over middle of operculum, height of fin gradually increasing to middle of soft part; anal III,10, origin under last dorsal spine, ~ uniform height; pectoral reaches to line through anus; pelvic strongly pointed, with first ray elongate; tail slightly convex; lateral line in 2 sections, rear section on tail base, 19 + 5 pored scales; head scaleless except for few scales below eye.



Female  uniform pale brown. Male darker brown, with a narrow blue and violet vertical line on each scale, most distinct and broadest on tail base; a conspicuous black spot (larger than eye) at base of tail just above lateral line; three concentric blue lines on outer part of operculum, three narrow blue lines running down and forward from eye across cheek; lower jaw and lower side of head with blue stripes and lines, the one connecting angles of mouth broader than the others, fins pale.



        Size: 15.9 cm.

Habitat: benthic on fine sand.

        Depth: 5-27 m.

        
        Central Gulf of California to central Mexico.
   
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Biology

Max. length (Benjamin Victor, pers. comm., 2000).
  • Parenti, P. and J.E. Randall 2000 An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref. 35918)
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Distribution

Range Description

This species is endemic to the Eastern Pacific, and is found from the central Gulf of California to central Mexico. Larvae have been collected near Galapagos, although no adults recorded from that region.
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Zoogeography

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, Continental TEP endemic, Cortez + Mexican provinces endemic, Continent, Continent only

Residency: Resident

Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap), Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
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Eastern Central Pacific: Baja California, Mexico and Perlas Islands (Panama).
  • Parenti, P. and J.E. Randall 2000 An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref. 35918)
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Eastern Pacific: Baja California.
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Depth

Depth Range (m): 5 (S) - 27 (S)
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Physical Description

Morphology

Size

Length max (cm): 15.9 (S)
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Size

Max. size

14.5 cm SL (male/unsexed; (Ref. )); 10.9 cm SL (female)
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Type Information

Type for Xyrichthys mundiceps
Catalog Number: USNM 8082
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Xantus
Locality: Lower California, Cape San Lucas., Baja California Sur, Mexico, Pacific
  • Type:
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Type for Xyrichthys mundiceps
Catalog Number: USNM 4370
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Xantus
Locality: Lower California, Cape San Lucas., Baja California Sur, Mexico, Pacific
  • Type:
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This demersal species is found on fine sand to depths of 27m.

Systems
  • Marine
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Environment

demersal; marine; depth range 12 - 15 m (Ref. 46206)
  • Eschmeyer, W.N. (ed.) 2003 Catalog of fishes. Updated database version of March 2003. Catalog databases as made available to FishBase in March 2003. (Ref. 46206)
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Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Near Bottom, Bottom, Bottom + water column

Habitat: Soft bottom (mud, sand,gravel, beach, estuary & mangrove), Soft bottom only, Sand & gravel

FishBase Habitat: Demersal
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Trophic Strategy

Feeding

Feeding Group: Carnivore, Planktivore

Diet: mobile benthic worms, mobile benthic crustacea (shrimps/crabs), mobile benthic gastropods/bivalves, zooplankton, pelagic fish eggs
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Life History and Behavior

Reproduction

Egg Type: Pelagic, Pelagic larva
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Xyrichtys mundiceps

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 5
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Allen, G., Robertson, R., Victor, B. & Rocha, L.

Reviewer/s
Sadovy, Y. & Craig, M.

Contributor/s

Justification
This species is widespread in the Eastern Pacific, and locally common 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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IUCN Red List: Not evaluated / Listed

CITES: Not listed
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Population

Population
No population information is available for this species. This species is considered to be locally common in at least parts of its range such as Baja California.

Population Trend
Unknown
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Threats

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.
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Management

Conservation Actions

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).
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