Grammoplites Knappi (Grammoplites knappi) is a ray-finned fish of the family Platycephalidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 30 cm. With a trophic level of 3.8, it is a mid-level predator.
Dorsal spines (total): 9; Dorsal soft rays (total): 12; Anal spines: 0; Anal soft rays: 12. Lateral line scales frequently 53, each scale with a backward directed spine that does not extend beyond rear margin of scale. Interorbital width less than 9% of head length. Caudal fin frequently with 2 dark bands posteriorly. Dorsal fin rays IX, I,VIII, or I,VII,I, usually I,VIII.
Behavioural data for Grammoplites Knappi is currently being reviewed.
Marine; demersal; non-migratory; depth range ? - 32 m . Tropical South China Sea, the Gulf of Thailand and Johore shoals of Malaysia.
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