Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Hemigaleidae
Etymology: Paragaleus: para (Gr.), near, referring to how its dentition is intermediate between Hemigaleus and the triakid Eugaleus (=Galeorhinus). (See ETYFish); tengi: In honor of Teng Huo-Tu (1911-1978), Director, Taiwan Fisheries Research Institute, and authority on Taiwanese elasmobranch fishes. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Tropical; 34°N - 15°N
Western Pacific: Japan to Viet Nam, including Hong Kong and Taiwan. Report of a record from off Madagascar may be an undescribed Paragaleus which has just recently been collected.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 88.0 cm TL male/unsexed; (Ref. 244)
A little-known inshore shark (Ref. 13567). Viviparous (Ref. 50449). Taken in fisheries where it occurs (Ref. 13567).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Viviparous, placental (Ref. 50449). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 125652)
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 21.5 - 26.9, mean 24.7 °C (based on 164 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5664 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00143 - 0.00879), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Fec is assumed to be <10).
Fishing Vulnerability (Ref. 59153
): High vulnerability (55 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .
Nutrients (Ref. 124155
): Calcium = 45.2 [6.3, 171.6] mg/100g ; Iron = 0.554 [0.137, 1.598] mg/100g ; Protein = 18.6 [16.6, 20.6] % ; Omega3 = 0.156 [0.068, 0.349] g/100g ; Selenium = 50.5 [14.9, 153.8] μg/100g ; VitaminA = 40.9 [13.5, 123.1] μg/100g ; Zinc = 0.663 [0.316, 1.457] mg/100g (wet weight);