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Acanthuriformes (Surgeonfishes) >
Chaetodontidae (Butterflyfishes)
Etymology: Johnrandallia: After John Randall, marine biologist, Bishop Museum of Hawaii; he worked in systematic ichthyology with fishes of Indopacific region.
More on author: Gill.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas associadas(os) a recifes; intervalo de profundidade 6 - 40 m (Ref. 9286), usually 6 - 12 m (Ref. 9286). Tropical; 40°N - 10°S, 120°W - 70°W
Eastern Pacific: Gulf of California to Panama, including the Cocos, Malpelo and Galapagos Islands.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL macho/indeterminado; (Ref. 9286); common length : 14.0 cm TL macho/indeterminado; (Ref. 55763)
Espinhos dorsais (total): 11 - 12; Raios dorsais (total): 24-25; Espinhos anais 3; Raios anais : 18 - 20. Body deep, compressed, and disk-shaped; dorsal profile of head steep and concave; snout pronounced; teeth very small and se in a comb-like band; base of pelvic spine with an axillary process; lateral line complete, extending over caudal peduncle; body yellowish; snout with a dark stain; eye bordered with black; posterior edge of operculum, base of pectoral fins, nape, and dorsal border (at base of dorsal fin) black (Ref. 55763).
Often in large schools (Ref. 5227) over coral and rocky reefs (Ref. 9286). Feed on algae, gastropods, and small crustaceans (Ref. 9286). Pick parasites from larger fishes like Paranthias colonus and Mulloides dentatus (Ref. 28023). Oviparous (Ref. 205). Form pairs during breeding (Ref. 205).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Form pairs during breeding (Ref. 205).
Schneider, M., 1995. Chaetodontidae. Peces mariposa. p. 1000-1003. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9286)
Status na Lista Vermelha da UICN (Ref. 130435)
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