Overview

Comprehensive Description

General Description

From Boulenger (1910):

Petrocephalus cunganus, sp. n.

Depth of body equal to length of head, 3½ times in total length. Head slightly longer than deep, with convex upper profile; snout rounded, strongly projecting beyond mouth, 1/5 length of head; mouth below anterior border of eye, its width ¼ length of head ; teeth bicuspid, 11 in upper jaw, 24 in lower ; nostrils near lower border of eye ; eye ¼ length of head, 2/3 interorbital width. Dorsal 27, originating above first ray of anal; its length 1½ times in its distance from head and a little greater than its distance from caudal. Anal 32, equally distant from base of ventral and from base of caudal. Pectoral pointed, 2/3 length of head, not quite twice as Iong as ventral, extending beyond base of latter. Caudal scaled at the base, upper lobe pointed, lower rounded. Caudal peduncle 3 times as long as deep, ¾ length of head. 47 scales in the lateral line, 12/14 in transverse series on body, 16/14 in transverse series between dorsal and anal, 12 round caudal peduncle. Brown above, silvery beneath; fins brownish.

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Distribution

Range Description

Endemic from Angola only known from its type locality, at Cunga, in the Lower Kwanza River (Kwanza River).
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Africa: Angola (type locality).
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Holotype from the Quanza River at Cunga

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Angola.
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Physical Description

Size

Max. size

11.0 cm TL (male/unsexed; (Ref. 1869))
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From Boulenger (1910): Total length 110 mm.

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Biology and preferred habitat are not known.

Systems
  • Freshwater
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Environment

demersal; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2007

Assessor/s
Da Costa, L.

Reviewer/s
Snoeks, J. (Freshwater Fish Red List Authority) & Darwall, W. (Freshwater Biodiversity Assessment Unit)

Contributor/s

Justification
Only known from one locality in the lower Kwanza River (type locality). No obvious known threats. Larger distribution expected. More comprehensive surveys required to confirm the true extent of its distribution.
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Population

Population
Population size is not known.

Population Trend
Unknown
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Threats

Major Threats
Threats are not known.
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Data deficient (DD)
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Management

Conservation Actions

Conservation Actions
The species has no protection.
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