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Batrachoides waltersi Collette and Russo, 1981
WALTERS TOADFISH
Hairy toadfish

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Batrachoides waltersi
© Copyright Ross Robertson, 2006 · 12
Batrachoides waltersi

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Batrachoides waltersi
© Copyright Photographer/SFTEP, 2002 · 0
Batrachoides waltersi
español

Overview
Main identification features
  • small eye
  • filaments: snout and between eyes
  • c: bars
  • scales to center nape
  • body - wide bars
  • pectoral bars + spots
Head moderately depressed; eyes small (3-6% of standard length); no tentacles over eye; filaments on snout and between eyes; 2 spines on upper opercle; 2 spines below and behind opercular spines; teeth pointed; scales on head extend well forwards, to canals on rear of head; body covered with small imbedded scales; 48-67 pores on upper lateral line, 44-62 pores on lower line; dorsal rays III,26-28; anal 23-25 rays; pectoral 21-23 rays.

Body medium dark, 4-5 wide dark bars on upper back and side, another encircling tail base; dorsal dark, with broad oblique darker bands; head pale with dark blotches over top and sides; throat pale; tail with 4 dark bars, thinnest 2 in center, pale margin; anal pale with dark margin; pectoral pale with dark bars on base and margin and 2 rows dark spots in between; pelvic pale with dark tip.

Size: 35 cm.

Habitat: soft bottoms, river mouths and bays.

Depth: 15-75 m.

Southern Mexico to Costa Rica.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Tropical (Mexican Province to Nicaragua + Revillagigedos); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 75 m.
Depth Range Min: 15 m.
Diet: mobile benthic gastropods/bivalves; bony fishes; sea-stars/cucumbers/urchins; mobile benthic crustacea (shrimps/crabs); octopus/squid/cuttlefish.
Eastern Pacific Range: Northern limit=18; Southern limit=9; Western limit=-102; Eastern limit=-83; Latitudinal range=9; Longitudinal range=19.
Egg Type: Benthic; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Mud; Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Freshwater.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 35 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Mexican + Panamic provinces endemic; All species.
Residency: Resident.
Salinity: Brackish; Freshwater; Non Marine.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Castri-Aguirre, J.L., Espinoza-Pérez, H. and Schmitter-Soto, J.J., 2002., Lista sitemática, biogeográfica y ecológica de la ictiofauna estuarino lagunar y vicaria de México. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:117-142.
  • Castro-Aguirre, J.L., 1999., Ictiofauna estuarino-lagunar y vicaria de México., Editorial Limusa S.A. de C.V.: 1-629pp.
  • Collette , B.B. and Russo, J.L., 1981., A revision of the scaly toadfishes, genus Batrachoides, with descriptions of two new species from the eastern Pacific., Bull. Mar. Sci., 31:197-233.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.

Acknowledgements

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


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