Overview

Comprehensive Description

Description

  Common names: midshipman (English), pez-fraile (Espanol), sapo (Espanol)
 
Porichthys mimeticus Walker & Rosenblatt, 1988

Mimic midshipman,     Mimetic midshipman



One solid spine on opercle; no subopercular spines; teeth like canines; 11 (10-12) rakers on lower limb of first gill arch; first dorsal fin 2 solid spines, separate from second dorsal fin; second dorsal 32-36 rays; dorsal and anal fins not joined to tail; anal rays 31 (29-33); pectoral 16-20 rays; no scales; 4 lateral lines on body with light organs; lower lateral line ends  ~ 18 pores before the same line of light organs.

5 (4-6) dark saddles on back; dorsal fin with thin dark margin, 1-2 dark spots at front; tail with dark border; anal fin with thin dark margin; pectoral with dusky base, dusky rays; pelvics with dark rays.

Size: 21.5 cm.

Habitat: mud and sand bottoms.

Depth: 80-185 m.

Gulf of California.
   
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Distribution

Range Description

This species is endemic to the Eastern Central Pacific, and is restricted to the Gulf of California, Mexico.
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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: 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: probably throughout the Gulf of California.
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Eastern Pacific.
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Depth

Depth Range (m): 80 (S) - 185 (S)
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Physical Description

Morphology

Size

Length max (cm): 21.5 (S)
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Size

Maximum size: 185 mm SL
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Max. size

18.5 cm SL (male/unsexed; (Ref. 9277))
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Type Information

Paratype for Porichthys mimeticus Walker & Rosenblatt
Catalog Number: USNM 287709
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Hubbs, Wisner & Mcconnaughey
Year Collected: 1968
Locality: Baja California. Sur., Mexico, Continental Shelf, Between Punta Gorda and Arr. De Le Venorama, N.E. of Outer Gorda Bank., Baja California Sur, Mexico, Pacific
Depth (m): 119 to 155
Vessel: Washington
  • Paratype: Walker, H. J. & Rosenblatt, R. H. 1988. Copeia. 1988 (4): 895.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species lives on muddy and sandy substrate in deep water.

Systems
  • Marine
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Environment

demersal; marine; depth range 82 - 185 m (Ref. 9277)
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Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

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

FishBase Habitat: Demersal
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Trophic Strategy

Feeding

Feeding Group: Carnivore

Diet: mobile benthic crustacea (shrimps/crabs), bony fishes
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Life History and Behavior

Reproduction

Egg Type: Benthic, No pelagic larva, No pelagic phase
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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
Collette, B., Acero, A., Betancur, R., Cotto, A. & Rojas, P.

Reviewer/s
Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)

Contributor/s

Justification
This deep-water species is restricted to the Gulf of California. No major threats to this species are known, and there is 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.

Population Trend
Unknown
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Threats

Major Threats
No major threats are known for this species.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no known conservation measures for this species.
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