Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Kurtiformes (Nurseryfishes, cardinalfishes.) >
Apogonidae (Cardinalfishes) > Apogoninae
Etymology: Siphamia: A Swazi word, siphama, for a fish; randalli: This species is named randalli in honour of Dr. John E. Randall of Honolulu, Hawai’i, for his numerous and noteworthy contributions to our knowledge of reef fish taxonomy. Jack, as he is known to friends and colleagues, is a genuine inspiration to everyone in the field of ichthyology. Moreover, Dr. Randall’s Siphamia collections at BPBM and specimen photographs, including this species, have formed an essential part of our revision (Ref. 90035).
Eponymy: Dr John ‘Jack’ Ernest Randall Jr. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range 0 - 30 m (Ref. 90035). Tropical; 15°S - 21°S, 159°W - 149°W
Pacific Ocean: French Polynesia and Cook Islands (Ref. 90035).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.9 cm SL male/unsexed; (Ref. 90035)
Short description
Identification keys | Morphology | Morphometrics
wDorsal rays VII+I,9; anal rays II,8; pectoral rays 14-15; tubed lateral-line scales 9-12; median predorsal scales 3-5; total gill rakers 2-4 + 10-12 = 13-16; developed gill rakers 1-2 + 9-11 =10-12; gill rakers on ceratobranchial 8 (rarely 9). Body depth 2.45-3.0 in SL and body width 1.7-2.15 in the depth; eye diameter 2.9-3.3 in head length; first dorsal spine 2.1-3.8 in second spine; second dorsal spine 4.4-6.4, spine of second dorsal fin 4.0-4.5, and second anal spine 4.7-5.6, all in head length; pectoral-fin length 4.1-4.6 and pelvic-fin length 3.8-4.4 in SL; caudal-peduncle length 1.2-1.9 in distance between pelvic spine insertion and anal-fin origin; light organ 1.65-2.7 in caudal peduncle length. Preopercular edge with 19-25 small serrations; preopercular ridge smooth. Tip of light organ on each side of tongue bound by membrane. (Ref. 90035).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gon, O. and G.R. Allen, 2012. Revision of the Indo-Pacific cardinalfish genus Siphamia (Perciformes: Apogonidae). Zootaxa 3294:1-84. (Ref. 90035)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 27.5 - 27.9, mean 27.8 °C (based on 16 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00680 - 0.03071), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
