Grallenia Ornata
📖 Overview
Grallenia Ornata (Grallenia ornata) is a ray-finned fish. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 1.4 cm. It occurs at depths between 7 and 10 metres. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 7; Dorsal soft rays (total): 8 - 10; Anal spines: 1; Anal soft rays: 8 - 10; Vertebrae: 27. This species is distinguished from its congeners by the following set of characters: dorsal rays VI + I,8-10 (rarely 8); anal rays I,8-10 (rarely 10); pectoral rays 13-17 (usually 15); first dorsal spine of male produced into elongate filament; absence of pelvic frenum; absence of cephalic sensory canals and associated pores; total longitudinal scales 14-22 (mean 17), including 3-6 (mean 4.6) scales immediately behind pectoral fin and 10-16 12.7) on posterior portion of body, main mass of body scales extending forward from caudal-fin base to about level of sixth segmented dorsal fin ray; colour in alcohol yellowish white with seven widely spaced small brown spots or horizontally elongate streaks in mid-lateral row on side of body, pair of curved dark markings on caudal-fin base, triangular dark mark below eye, large dark blotch on anterior opercle, oblique dark band on lower pectoral-fin base and extending under opercle, row of 10 dark spots along dorsal midline from first dorsal fin to caudal-fin base with corresponding row of smaller spots on either side of midline, and five elongate dark streaks on ventral midline from base of anterior anal-fin rays to middle of caudal peduncle; and live male and female individuals capable of 'switching on' bright nuptial/territorial colour patterns (only males possess this ability in most other congenerics) .: elongated; Cross section: oval.
🌀 Behaviour
Behavioural data for Grallenia Ornata is currently being reviewed.
🦐 Diet
Diet information for Grallenia Ornata is currently being compiled.
🥚 Reproduction
Reproduction data for Grallenia Ornata is currently being compiled.
🌍 Habitat & Distribution
Marine; reef-associated; depth range 7 - 10 m . Tropical Central Pacific: Indonesia.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Grallenia Ornata ↗Spotted incorrect or outdated data?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.