SCOTCAT.COM  

your internet guide to all things catfish
≡
  • HOME
  • FACTSHEETS
    • By Month/Year
    • By Family
    • by Genus
    • by Common Names
    • By Specific Names
    • By Continent
      • Index
      • Africa
      • Asia
      • Australasia
      • Europe
      • North America
      • South America
  • GALLERIES
    • Photo Gallery
    • Art Gallery
    • Movie Gallery
    • Stamps Gallery
  • FAMILIES
    • A-B
      • Ailiidae
      • Akysidae
      • Amblycipitidae
      • Amphiliidae
      • Anchariidae
      • Ariidae
      • Aspredinidae
      • Astroblepidae
      • Auchenipteridae
      • Austroglanididae
      • Bagridae
    • C-D
      • Callichthyidae
      • Cetopsidae
      • Chacidae
      • Clariidae
      • Claroteidae
      • Cranoglanididae
      • Diplomystidae
      • Doradidae
    • E-H
      • Erithistidae
      • Heptapteridae
      • Heteropneustidae
      • Horabagridae
    • I-M
      • Ictaluridae
      • Lacantuniidae
      • Loricariidae
      • Malapteruridae
      • Mochokidae
    • N-P
      • Nematogenyidae
      • Pangasiidae
      • Phreatobiidae
      • Pimelodidae
      • Plotosidae
      • Pseudopimelodidae
    • S-T
      • Schilbeidae
      • Scoloplacidae
      • Siluridae
      • Sisoridae
      • Trichomycteridae
  • ARTICLES
    • Index
    • Breeding
    • By Author
    • Cat-Articles
    • General
    • Numbered List
    • Ichthyology
    • Travel/Collecting
  • IDENT-A-CAT
  • RESOURCES
    • Citation
    • Etymology
    • Fishhouse
    • Glossary
    • Scientific Papers
    • ScotShop
  • SITE MAP
  • FB GROUP
  • HELP
    • Index
    • Catfish Anatomy
    • Convertors
    • FAQ
    • Ident-A-Cat
    • Water Chemistry

Gogo atratus Ng, Sparks & Loiselle, 2008

 

Image contributors to this species:

Paul V. Loiselle (2)

ScotCat Sources:

Etymology = Genus  Etymology = Species

Other Sources:

Search  FishBase  Wikipedia  Catalog of Fishes  Global Biodiversity Information Facility  iNaturalist

Relevant Information:

Description: Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 11 - 12; Vertebrae: 43 - 44. Diagnosis: Gogo atratus is distinguished from congeners in having a longer snout, 54.8-56.4% of head length vs. 47.1-54.3%; and faintly mottled dark gray colouration vs. uniform brown, highly mottled dark gray and cream, or mottled brownish-gray. It further differs from Gogo ornatus in having a larger eye in specimens larger than 110 mm standard length, eye diameter 13.0-14.3% of head length vs. 9.2-12.5% (Ref. 75790). It differs from G. brevibarbis in having unicuspid teeth vs. bicuspid, and a smaller eye, eye diameter 13.0-14.3% of head length vs. 19.5%. It differs from G. arcuatus in having a narrower head, head width 17.8-18.9% of standard length vs. 20.8-21.0% and interorbital distance 28.9-30.5% of head length vs. 34.8-35.1%; smaller eye, eye diameter 13.0-14.3% of head length vs. 17.7-18.6%; shorter dorsal spine, 17.7-20.6% of standard length vs. 21.2-21.8%; shorter pectoral spine, 16.5-18.9% of standard length vs. 19.9-20.2%; and a straight dorsoposterior margin of the dorsal fin vs. concave. Habitat: G. atratus is found over an open sand/cobble bottom interspersed with scattered rocky ourcroppings at a depth of less than 1 m; the water is clear, with the bottom consisting of either sand or rock/cobble; the bottom is lightly overlain with leaf litter in quieter stretches of the river. Remarks: Gogo atratus is only known from the two collection sites of the type series in the Lower Mananara du Nord River in northeastern Madagascar. These two sites are located approximately 7 km from each other. It is not possible to adequately assess the risk of extinction of this species because there is not enough information available on the distribution and/or population status of this species, nor on plausible threats. Far more survey work in the region is required before this species can be accurately assessed. This anchariid catfish is therefore listed as Data Deficient (IUCN).

Common Name:

None

Synonyms:

None

Family:

Anchariidae

Distribution:

Africa: Mananara du Nord River drainage in northeastern Madagascar. Type Locality: Main channel of Mananara River at Antonibaolina village, Mananara du Nord drainage, 16°18'47.4''S, 49°39'52.2''E, Toamasina Province, Madagascar, elevation 108 meters.

Size:

17.0cm. (6¾ins)

Temp:

-

p.H.

-

Reference:

Ng, H.H., J.S. Sparks and P.V. Loiselle, 2008. A new species of catfish of the genus Gogo from the Northeastern Madagascar (Siluriformes: Anchariidae). Copeia 2008(2):395-400.
Froese, R. and D. Pauly. Editors. 2019.FishBase. World Wide Web electronic publication. www.fishbase.org, ( 08/2019 ).
IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: www.iucnredlist.org.
FishBase team RMCA & Sparks, J.S. 2016. Gogo atratus. The IUCN Red List of Threatened Species 2016: e.T55325199A58340524.



Back to Family page

Family: Anchariidae  Back to Ident-A-Cat  Click on Thumbnails

Click for full image  Gogo atratus
 
Mananara du Nord River 16.5cm Male

Click for full image  Gogo atratus
  Mananara du Nord River 16.5cm Male head view

 

If you would like to contribute to the monthly factsheets with an article, information or photos, please e-mail me. You will of course be credited for your work.

 

Donate towards my web hosting bill!

 

If you would like to donate any denomination of monies to the site just click the above link button. All proceeds will go to running the site and hopefully to keep it going for a few years yet.

 

 

 

  • Facebook about us + contact us + citation + translate + site map + scotshop + glossary + etymology +
  • help YouTube

©2023 SCOTCAT.COM