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Denariusa australis (Steindachner, 1867) Pennyfish |
| Family: | Ambassidae (Asiatic glassfishes) | |||
| Max. size: | 4.5 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | Oceania: Australia and Papua New Guinea. | |||
| Diagnosis: | Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-10; Anal spines: 3-3; Anal soft rays: 7-9 | |||
| Biology: | Occurs in small, slow-flowing streams and swamps where there is dense aquatic vegetation (Ref. 5259, 44894). Tolerant of temperatures between 25° and 38°C, and a pH range of 4.5-8.1 (Ref. 44894). Feeds primarily on aquatic insects and micro-crustaceans (Ref. 5259, 44894). The smallest ambassid in Australia, with a life span of probably 2-3 years. Sexual maturity is attained at the end of the first year and breeding has been recorded in the wet season in flooded swampy lagoons (Ref. 44894). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 12 February 2019 Ref. (130435) | |||
| Threat to humans: | harmless | |||