Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Platycephalidae
Etymology: Grammoplites: Greek, gramma, atos = signal, mark + Greek, hoplon = shield (Ref. 45335). More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; demersal; amphidromous (Ref. 51243); depth range 45 - 90 m (Ref. 68964). Tropical
Indo-West Pacific: southern Arabian Sea and Bay of Bengal through Malaysia, Indonesia to Bali and Celebes, Gulf of Thailand, Viet Nam, Hong Kong and southern Philippines. Also reported from the Arafura Sea (Ref. 9819). Records from the northern Arabian Sea, Persian Gulf and east coast of Africa probably refer to other species.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 9790); common length : 20.0 cm TL male/unsexed; (Ref. 9790)
(total): 11-13. Lateral line scales often 53, each scale with a backward directed spine that extends beyond rear margin of scale, especially along the caudal peduncle. Interorbital width 9% or more of head length.
Taken by trawling over mud and sand at depths to about 55 m (Ref. 9790). Juveniles may enter brackish water.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kuronuma, K. and Y. Abe, 1986. Fishes of the Arabian Gulf. Kuwait Institute for Scientific Research, State of Kuwait, 356 p. (Ref. 5999)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Fisheries: minor commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.3 - 28.3, mean 27.2 °C (based on 347 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00302 - 0.00794), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .