Actinopteri (ray-finned fishes) > Acanthuriformes
(Surgeonfishes) > Lobotidae
Etymology: Hapalogenys: Greek, hapalos = soft * Greek, geny, -yos = face (Ref. 45335); bengalensis: Named for its type locality, collected from the Bay of Bengal.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic. Tropical
Eastern Indian Ocean: India, Bay of Bengal.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.7 cm SL male/unsexed; (Ref. 94191)
Morphology | Morphometrics
This species is distinguished by the following set of characters: fleshy lowerlip with dense cluster of very small papillae anteriorly; 10 unobstructed pores on or behind chin, 3 longitudinal stripes on body irrespective of size of the specimen, their width below the base of 5th and 6th dorsal fin spines clearly wider than pupil diameter; tip of pelvic fin almost reaching beyond the first anal fin spine when depressed, sometimes reaching the second anal spine; transverse scale rows 7-8 above lateral line, 19-20 below lateral line, gill rakers 7+11 in all specimens; soft rayed portion of dorsal and anal fins somewhat rounded (Ref. 94191).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mohapatra, A., D. Ray and V. Kumar, 2013. A new fish species of the genus Hapalogenys (Perciformes: Hapalogenyidae) from the Bay of Bengal, India. Zootaxa 3718(4):367-377. (Ref. 94191)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.00861 - 0.04413), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±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 vulnerability (10 of 100) .