Teleostei (teleosts) >
Clupeiformes (Herrings) >
Engraulidae (Anchovies) > Engraulinae
Etymology: Stolephorus: Greek, stole, -es = garment + Greek, pherein = to carry (Ref. 45335).
Eponymy: Professor Inocencio Aricayos Ronquillo (d: 1918) was a Filipino marine biologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range 0 - 50 m (Ref. 189). Tropical; 17°N - 7°N, 17°E - 128°E (Ref. 189)
Western Central Pacific: known only from the Philippines. Indian Ocean, Thailand and Singapore records were based on Stolephorus insularis.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 5.3 cm SL male/unsexed; (Ref. 189)
Dorsal spines (total): 0; Anal spines: 0; Vertebrae: 38 - 40. This species is distinguished by the following set of characters: gill rakers on upper limb of 1st gill arch, 18-21 (modally 20), on lower limb 28-29 (28), total 47-49 (48); gill rakers on upper limb of 2nd gill arch, 13-15 (13), on lower limb 24-27 (24), total 37-42 (38); gill rakers on upper limb of 3rd gill arch, 9-11 (10), on lower limb 13-15 (14), total 23-26 (24); gill rakers on upper limb of 4th gill arch, 6-9 (8), on lower limb 9-12 (11), total 15-20 (20); prepelvic scutes 5-7 (6); total vertebrae 38-40 (38); maxilla long with posterior tip just reaching or slightly short of posterior margin of opercle; absence of predorsal scutes; pelvic scute no spine; posterior margin of preopercle indented; parietal area with paired dark patches, with a few following pigment spots; distinct double pigment lines along dorsum posterior to the dorsal fin; no black spots below the eye and lower-jaw tip; body rather elongate, 21.1-22.6% of SL; pre-anal-fin length is short, 62.3-64.0% of SL; distance between the origins of dorsal and anal fins rather short, 21.2-22.9% of SL; distance between the pelvic-fin insertion to anal-fin origin relatively short, 16.6-19.4% of SL; pelvic fin is rather short, 8.1-9.0% of SL; third dorsal-fin ray is short, 16.5-17.0% of SL; third anal-fin ray is short, 13.4-14.9% of SL; postorbital area is relatively short, 48.2-51.3% of HL (Ref. 130209).
A schooling species found in coastal waters. Not common in museum collections, so perhaps not very abundant. More specimens and data needed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hata, H. and H. Motomura, 2022. Redescription of Stolephorus ronquilloi Wongratana, 1983 and description of Stolephorus hindustanensis, a new anchovy from the Western Coast of India (Teleostei: Clupeiformes: Engraulidae). Taxonomy 2(1):124-135. (Ref. 130209)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00220 - 0.01140), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Stolephorus ronquilloi (Ronquillo\](/images/thumbnails/gif/tn_Stron_u0.gif "Image of Stolephorus ronquilloi (Ronquillo\")
