| Family: |
Adrianichthyidae (Ricefishes), subfamily: Oryziinae |
| Max. size: |
4.03 cm SL (male/unsexed); 4.61 cm SL (female) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
Asia: Lake Masapi in central Sulawesi, Indonesia. |
| Diagnosis: |
Dorsal soft rays (total): 8-10; Anal soft rays: 19-22; Vertebrae: 28-30. Diagnosed from all species of Adrianichthyidae in Sulawesi by the combination of the following characters: snout with a well marked concavity; a slightly upwards directed mouth; a slender but relatively wide body (body depth 18.2-25.7% SL, body width 10.9-14.5% SL); pelvic
fins with 5-6 rays inserting relatively close to the rear end of the body (prepelvic length >47.7% SL); anal fin with 19-22 rays inserting relatively close to the rear end of the body (preanal length >63% SL); dorsal fin with 8-10 rays inserted above 10-12th anal-fin ray; 28-30 vertebrae; large eyes (30-39.8% HL); scales on the lateral line 27-31, transversal scale rows ½ 10-14; absence of dark blackish, dark bluish, or steel blue body coloration or brilliant red marks in both sexes;
presence of dark brown blotches on the lateral body in adult males; and absence of these blotches in females (Ref. 85098). |
| Biology: |
Inhabits blackwater lake which is almost circular and only a few meters deep, surrounded by rain forest. The introduced predatory snakehead, Channa striata, occupies the same shallow shoreline habitats of this species and appears likely to cause threats (Ref. 85098). |
| IUCN Red List Status: |
Vulnerable (VU); Date assessed: 14 June 2018 (D2) Ref. (130435)
|
| Threat to humans: |
harmless |
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