Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Eleotridae
(Sleepers) > Butinae
Etymology: Bostrychus: Greek, bostrykos = cure of lack of hair (Ref. 45335); scalaris: Name from the Latin 'scalaris' for ladder, referring to the step-ladder-like banded pattern on the body of this species. More on author: Larson.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic. Tropical
Western Pacific: Malaysia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.3 cm SL male/unsexed; (Ref. 83590)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 27. This species is distinguished by the following characters: D2 I,9; A I,8; pectoral rays 16; lateral line scales 135-142; mandibular sensory papilla row I arranged in clusters; head broad and depressed; body slender, compressed posteriorly; pectoral fins heavily pigmented; body with distinctive ladder-like dark bars and complex serpentine pattern (Ref. 83590).
The holotype was found under a small log in a very small muddy pool at low tide, in a partly cleared mangrove (dominated by Avicennia marina). The collection site is now 'reclaimed' land. The water was brackish (20 ppt) and only a few centimetres deep (Ref. 83590).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Larson, H.K., 2008. New species of the gudgeon Bostrychus (Teleostei: Gobioidei: Eleotridae), from peninsular Malaysia. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 24:147-150. (Ref. 83590)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00436 - 0.02294), b=3.04 (2.83 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .