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Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Sicydiinae
Etymology: Sicyopterus: Greek, sika, sikya = cucumber + Greek, pteron = wing, fin (Ref. 45335); calliochromus: Sicyopterus calliochromus differs from S. longifilis with its distinctive gold and black band pattern and the female’s bulbous urogenital papilla with fimbriate projections around a tubular ovipositor. Moreover, it differs in having fewer scales in predorsal midline (10-16 vs. 18-21) and in transverse forward series (14-18 vs. 17-21) and fewer branched rays in caudal fin (13 vs. 14-15). (Ref. 90225).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; amphidromous. Tropical

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Asia: Currently known only from the Tirawiwa River, a major tributary of the Wapoga River, which flows into the eastern side of Cenderawasih Bay, Papua Province in Indonesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.8 cm SL male/unsexed; (Ref. 90225)

Short description Identification keys | Morphology | Morphometrics

A Sicyopterus with only 2 lateral clefts on upper crenulated lip and a second dorsal fin with 1 spine and 10 segmented rays. A distinctive gold colour on entire body, both in males and females, with two ventral black bands from pectoral base to upper hypural, a black mask on the front of the head below the eyes and a black spot on the ventral part of the head. Females with bulbous urogenital papilla with fim briate projections around a tubular ovipositor, which seems to be unique in Sicyopterus species. Fins particularly long both in males and females. (Ref. 90225).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Keith, P., G. Allen, C. Lord and R. Hadiaty, 2011. Five new species of Sicyopterus (Gobioidei: Sicydiinae) from Papua New Guinea and Papua. Cybium 35(4):299-318. (Ref. 90225)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Near Threatened (NT) (B1ab(v)); Date assessed: 06 December 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Sicyopterus calliochromus Keith, Allen & Lord, 2012