| Family: |
Cichlidae (Cichlids), subfamily: Geophaginae |
| Max. size: |
7.41 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: currently known only from the upper section of the Paraguaçu river basin, Chapada Diamantina, north-eastern Brazil (Ref. 118113). |
| Diagnosis: |
Dorsal spines (total): 14; Dorsal soft rays (total): 10-12; Anal spines: 3; Anal soft rays: 7-8; Vertebrae: 27-28. Diagnosis: Geophagus diamantinensis is distinguished from all other species of the Geophagus brasiliensis species group by having the urohyal bone with a gentle anterior constriction (vs. strong constriction); presence of a small dark brow mark just posterior to pectoral fin (vs. absence); presence of a horizontal dark brown band on snout (vs. absence); and head more slender, head depth 77-86 % HL (vs. 87-122); G. diamantinensis is distinguished from G. itapicuruensis by having XIV spines on the dorsal-fin (vs. XIII), and from G. obscurus by having subterminal mouth (vs. terminal) (Ref. 118113). |
| Biology: |
Stomach content revealed that G. diamantinensis is insectivorous and feeds mainly on autochthonous resources; the main stomach contents included the following insect orders: Diptera, Ephemeroptera, Coleoptera, Trichoptera and Odonata; in addition, a residual content of vegetal material was also found (Ref. 118113). |
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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