Ancistomus Spinosissimus (Ancistomus spinosissimus) is a ray-finned fish. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 12.7 cm. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 4. Number of elongate odontodes on cheek 30-60; absence of dark spots on the ventral surface of head and body; fins and lateral and dorsal plates of head and body with numerous dark dots; dorsal-fin rays I, 7; premaxillary teeth 17-29; absence of small dark spots on upper region of eye; first anal-fin pterygiophore barely exposed, sometimes covered by skin; long and curled odontodes of adult males confined to the upper caudal peduncle region; interorbital width 30.3-35.0% HL .: elongated.
Behavioural data for Ancistomus Spinosissimus is currently being reviewed.
Diet information for Ancistomus Spinosissimus is currently being compiled.
Reproduction data for Ancistomus Spinosissimus is currently being compiled.
Freshwater; demersal. Tropical South America: middle and upper rio Tocantins and its tributaries.
No observations yet - be the first to log one!
View all observations for Ancistomus Spinosissimus ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.