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> Kurtiformes (Nurseryfishes, cardinalfishes.) > Apogonidae (Cardinalfishes) > Apogoninae
Etymology: Siphamia:A Swazi word, siphama, for a fish; arnazae:Named for the second author’s wife, Arnaz Mehta, who discovered the fish. Eponymy: Arnaz Erdmann née Mehta is the wife of the second author and his ‘best friend’ who, according to the damselfish etymology “…has selflessly supported his extensive field time in the Bird’s Head region (northern Papua New Guinea and eastern Indonesia) [...] (Ref. 128868), visit book page.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie
seewasser riff-verbunden; tiefenbereich 8 - 20 m (Ref. 120588). Tropical
Rückenflossenstacheln (insgesamt) : 7 - 8; Rückenflossenweichstrahlen (insgesamt) : 8 - 9; Afterflossenstacheln: 2; Afterflossenweichstrahlen: 8; Wirbelzahl: 24. This species belonging to the S. tubulata group (with dark-dotted light organ) is distinguished by the following characters: D1 VII,9; pectoral-fin rays usually 12; tubed lateral-line scales 1-4 (usually 1-2); developed gill rakers of first gill arch 1 + 8-9; small serrae around angle of preopercle edge 8-15; light organ barely extending onto caudal peduncle, the extent 5.2–23.1 in caudal peduncle length. Colour in life generally translucent pale pinkish to reddish orange with a dense covering of variable-sized orange spots on head and anterior two-thirds of body; a prominent 'cat’s eye' black bar through eye, covering more than pupil at center, and flanked by white crescents covering remaining iris (Ref. .120588). Body shape (shape guide): short and / or deep; Cross section: compressed.
Found on sheltered reef slopes, the habitat consists of predominately Seriotopora hystrix coral colonies and small Acropora coral heads with close-set branches, providing shelter for groups of about 10-30 fish (Ref. 120588).
Allen, G.R. and M.V. Erdmann, 2019. Siphamia arnazae, a new species of cardinalfish (Teleostei: Apogonidae) from Papua New Guinea. J. Ocean Sci. Found. 33:1-8. (Ref. 120588)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Phylogenetischer Diversitätsindex (Ref. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophische Ebene (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref. 59153): Low vulnerability (10 of 100). 🛈
![Image of Siphamia arnazae (Cat\](/images/thumbnails/jpg/tn_Siarn_u0.jpg "Image of Siphamia arnazae (Cat\")
![Image of Siphamia arnazae (Cat\](/images/thumbnails/jpg/tn_Siarn_f0.jpg "Image of Siphamia arnazae (Cat\")