Gobiocichla ethelwynnae Roberts, 1982

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Cichlidae \| Pseudocrenilabrinae
Synonyms	... more
Common names	哀思鮈丽鱼, 哀思鮈麗魚, ... more

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Main reference

Teugels, G.G. 1991. (Ref. 5639)
Other references | Biblio | Coordinator : Kullander, Sven O. | Collaborators

Size / Weight / Age

Max length : 6.7 cm SL male/unsexed; (Ref. 53766)

Environment

Benthopelagic; freshwater; pH range: 8.2 - ?

Climate / Range

Tropical; 28°C - ? (Ref. 52307); 7°N - 5°N

Africa: Known only from the type locality (Rapids in the mainstream of the Cross river about 8 km downstream from Mamfe, Western Cameroon).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 18 - 19; Dorsal soft rays (total): 11 - 12; Anal spines: 3; Anal soft rays: 10 - 11; Vertebrae: 34 - 36. Diagnosis: more elongated, more slender and somewhat more depressed than Gobiocichla wonderi (Ref. 52307), with a shallower caudal peduncle and smaller eyes (Ref. 53766). Scales reduced; dorsal fin never with "tilapiine" spot (Ref. 53784, Ref. 53766, Ref. 31256, Ref. 7378). Upper jaw relatively non-protrusible; groove between upper jaw and snout greatly reduced, insignificant or absent near snout-tip; mouth slightly narrower and more subterminal; snout tip visible from below; body horizontally oval in cross-section; 18-19 dorsal fin spines and 11-12 soft rays; 3 anal fin spines and 10-11 branched rays (Ref. 53766). Description: scales reduced or absent, normal sized scales only in a small region below the pectoral fin base and on the posterior fourth of the body (Ref. 53766, Ref. 53405, Ref. 7378). Outer jaw teeth bicuspid, inner jaw teeth tricuspid; posterior teeth on pharyngeal bone monocuspid (Ref. 53405). A single scale in the axil of the pectoral fin is substantially larger than any other scales, and the scales immediately posterior to this large scale progressively decrease in size and change from weakly ctenoid to cycloid; base of caudal fin with 5-6 rows of small scales; gill-rakers simple and moderately elongate; microbranchiospines absent; lower pharyngeal bone a relatively light construction; basicranial pharyngeal apophysis appears to be a reduced Tilapia-type; gut a tube of nearly uniform diameter; stomach virtually absent (Ref. 53766). Coloration: in life: body greenish or dark olivaceous; underside of body light grey or whitish (Ref. 53766, Ref. 53405, Ref. 7378). Mediolateral band runs from the snout to the anterior part of the caudal fin (Ref. 53784, Ref. 52307, Ref. 7378). Dorsolateral band, often poorly visible, may be present on the anterior part of the body; 7 vertical bands present, the first on the neck, the last on the caudal peduncle (Ref. 53766, Ref. 53405, Ref. 7378). A midlateral stripe on the head runs immediately over or directly through the eye (Ref. 52307). Dorsal surface of eyeball and adjacent portion of orbital rim with a poorly defined dark blotch or dense cluster of melanophores (Ref. 53766). Dorsal fin dul greyish or olivaceous, without brilliant colors, but sometimes with a light area (sometimes yellowish-red) on posterior part of distal margin, which continues on the upper part of the caudal fin; caudal fin yellowish-brown; anal fin yellowish-brown or olivaceous, darker distally; pectoral fins yellowish or light green; pelvic fins hyaline or brown-yellow; body sometimes uniformly brown-yellow, olivaceous, dark grey or slate-coloured, and distal margin of soft dorsal fin and upper part of caudal fin bright red, bordered by a yellowish or light submarginal band and sometimes even showing some light or yellow spots; never with "tilapiine" spot (Ref. 53766, Ref. 53405, Ref. 31256, Ref. 7378). Several dark horizontal bars in juveniles and extremely stressed individuals (Ref. 52307).

Found near river banks, primarly in small caves and cracks in stones, in flowing water with high turbulence and water speed (Ref. 52307). Found only in rocky habitats with little or no sand or gravel (Ref. 53766). Presumably feeds upon plants and other organisms which grow attached to the rocky substrate (Ref. 53766). Forages on algae using specialised, abrupt movements of the head (Ref. 52307).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (10 of 100)	Not marketed/unknown

Entered by Sa-a, Pascualita

Modified by Musschoot, Tobias

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