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Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Otopharynx: Greek, ous = hear + Greek, pharyngx = pharynx (Ref. 45335); antron: The specific epithet is derived from the Greek word antron, which means cave or cavity (Ref. 82798).

Environment / Climate / Range Ecology

Freshwater; demersal; depth range 10 - 60 m (Ref. 82798). Tropical, preferred ?

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: endemic to Lake Malawi, occurs between Gome and Nametumbwe in Malawi (Ref. 82798).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.9 cm SL male/unsexed; (Ref. 82798)

Short description Morphology | Morphometrics

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 9-10; Anal spines: 3-4; Anal soft rays: 8 - 9. A small to medium-sized cave-dwelling haplochromine with relatively deep body depth with greatest body depth at base of seventh or eighth dorsal spine (Ref. 82798). Otopharynx antron has a larger eye, 31.4-34.7% of head length, than most other Otopharynx species. It has fewer lateral-line scales (29-31) than Otopharynx argyrosoma and a larger lower-jaw length than Otopharynx heterodon (Ref. 82798). It is distinguished from Otopharynx spelaeotes and Otopharynx lithobates by its primarily unicuspid teeth in the outer rows of the oral jaws, by its smaller horizontal eye diameter, by a deeper caudal peduncle, and additionally from O. spelaeotes by having fewer teeth in the outer row of the left lower jaw (15-19) (Ref. 82798).

Cave-dwelling; males have been observed defending small caves with sandy bottom mostly against conspecific males; unicuspid teeth suggest diet of larger invertebrates or even fish (Ref. 82798).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

Cleaver, R.M., A.F. Konings and J.R. Stauffer Jr., 2009. Two new cave-dwelling cichlids of Lake Mala?i, Africa. Ichthyol. Explor. Freshwat. 20(2):163-178. (Ref. 82798)

IUCN Red List Status (Ref. 109396)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries:

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.4 ±0.4 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months ().

Vulnerability (Ref. 59153): Low vulnerability (14 of 100) .

Otopharynx antron Cleaver, Konings & Stauffer, 2009