Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Atelomycteridae
Etymology: Atelomycterus: ateles (Gr.), imperfect, unfilled or exempt; mycteros (Gr.), nostril, referring to lack of posterior nasal valve. (See ETYFish); erdmanni: In honor of marine biologist Mark V. Erdmann (b. 1968), who discovered and collected the type specimens. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 62 m (Ref. 100516). Tropical
Western Pacific: Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 50.1 cm TL male/unsexed; (Ref. 100516); 50.8 cm TL (female)
Morphology | Morphometrics
This medium-sized species (to at least 508 mm TL) is distinguished by the following set of characters: relatively short snout, 3.4-3.8% TL; head length 17.5-17.9% TL; precaudal length 76.6-79.1% TL; interdorsal space 13.4-13.7% TL; the distance between pectoral and pelvic fins and pelvic to anal fins about equal, ratio of pectoral-pelvic and pelvic-anal 1.01-1.02; anal-fin length to anal-fin base ratio 1.29; moderately falcate dorsal fins with posterior margins sloping anteroventrally from fin apices; strongly tricuspid denticles with an elongate medial cusp; claspers of adult males are relatively short, the outer length 9% TL, clasper base width 15.5% of clasper outer length, not stubby, not tapering from base to tip; clasper glans extend about half of clasper outer length; cover rhipidion is relatively narrow; rhipidion moderately large, partly concealed by cover rhipidion and exorhipidion; pseudosiphon about half length of cover rhipidion; the clasper tip is narrow and bluntly pointed; colour pattern with dark brown to black and white spots and blotches, and faint dark brown saddles; white spots are surrounded by 2-4 dark spots; dark spots are scattered along most of the ventral surface (less distinct in male); a distinct white stripe run through upper third of gill slits (Ref. 100516).
Observed by dive operators in North Sulawesi and Ambon on night dives at depths of 3 to 15 m (Ref. 100516).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fahmi and W.T. White, 2015. Atelomycterus erdmanni, a new species of catshark (Scyliorhinidae: Carcharhiniformes) from Indonesia. J. Ocean Sci. Found. 14:14-27. (Ref. 100516)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this BS (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (40 of 100).