Philypnodon Macrostomus (Philypnodon macrostomus) is a ray-finned fish of the family Eleotridae. It inhabits diadromous, migrating between freshwater and the sea waters in benthic environments. This species can reach a maximum total length of 3.7 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 7 - 9; Dorsal soft rays (total): 8 - 10; Anal spines: 1; Anal soft rays: 8 - 10; Vertebrae: 31 - 32. Can be diagnosed by having a wide gill opening, extending anteroventral to preoperculum, but not reaching to below eye, usually ending below posterior preopercular margin, sometimes as far forward as midway between posterior preopercular margin and eye; head papillae in transverse pattern; generally dark brown body, with darker brown mottling on sides, black stripes on 1st dorsal in adult males; jaws reaching to behind eye in mature males, variably developed in juvenile males and females, usually reaching below middle of eye to near end of eye; rounded to truncate tongue tip . : fusiform / normal.
Behavioural data for Philypnodon Macrostomus is currently being reviewed.
Marine; freshwater; brackish; demersal. Tropical
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