Dorsal spines (total): 2; Dorsal soft rays (total):
6; Anal spines: 0; Anal soft rays: 12; Vertebrae:
46. Diagnosis: Gogo brevibarbis is distinguished from
other members of Anchariidae in having bicuspid teeth
on the upper and lower jaws vs. unicuspid (Ref. 56142).
It can be further distinguished from Gogo arcuatus
in having a straight dorsoposterior margin of the
dorsal fin vs. concave; and from G.
ornatus in having
a larger eye, 15.9% of head length vs. 9.2-13.6%.
Remarks: This distribution range of this
species was thought to include the east coast rivers
between Mangoro and Mananara du Sud, Madagascar. However,
recent research suggests that G. brevibarbis
is only known from the holotype, which was presumably
collected within the upper to middle reaches of the
Mananjary river drainage in the southeastern highlands
of Madagascar (Ng and Sparks 2005). Anchariids are
difficult to collect as they are active at night,
and far more survey work needs to be done in the region
of the type locality to determine range and population
size (J. Sparks pers. obs.). In light of this new
evidence, the assessment for this species is Data
Deficient. Prior assumptions regarding range and population
size are no longer valid (IUCN).
Mananjary River basin in the southeastern highlands
of Madagascar. Type Locality: Ambohimanga,
Fianarantsao Province, Madagascar, 20°52'S, 47°36'E.
Ng, H.H. and J.S. Sparks,
2005. Revision of the endemic Malagasy catfish family
Anchariidae (Teleostei: Siluriformes), with descriptions
of a new genus and three new species. Ichthyol. Explor.
Freshwat. 16(4):303-323. 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. Sparks, J.S. 2016. Gogo brevibarbis
. The IUCN Red List of Threatened Species 2016: e.T1258A96189189.