Scarus rivulatus Valenciennes, 1840
Rivulated parrotfish

Rivulated parrotfish Aliyakyak,  Angol,  Asul,  Bon-ak,  Bungalog,  Bunog na angol,  Busalog,  Buyos,  Isdang loro,  Loro,  Loro,  Luro,  Lutiin,  Maming,  Mol-mol,  Mol-mol,  Mol-mol,  Molmol,  Moy-moy,  Mul-mul,  Mul-mul,  Mulmol,  Surf parrotfish,  Tattooed parrotfish,  Yapot, 

Scarus rivulatus
photo by Cook, D.C.

 Family:  Scaridae (Parrotfishes), subfamily: Scarinae
 Max. size:  40 cm SL (male/unsexed)
 Environment:  reef-associated; depth range 1 - 30 m
 Distribution:  Western Pacific: Thailand to New Caledonia, north to the Ryukyu Islands, south to Perth and New South Wales in Australia. Recently recorded from Tonga (Ref. 53797).
 Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 10-10; Anal spines: 3-3; Anal soft rays: 9-9. Males easily recognized by the yellow pectoral fins and orange cheeks. Females plain grey with pale lines along abdominal area (Ref. 48636). The initial phase closely resembles that of S. globiceps and S. psittacus. Differences lie in the number of scale row and scales in the ventral side.
 Biology:  Found in silty coastal and offshore areas to 20 m deep (Ref. 90102). Inhabits rocky and coral reefs from tidal pools to at least 10 m deep. Form schools with 30 to 40 individuals. Grazes on benthic algae and corals (Ref. 2935). Reproductively active terminal males become bicolored (Ref. 37816).
 IUCN Red List Status:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:  Recorded in TaƱon Strait (Ref. 107276). Known from Prieto Diaz, Sorsogon (Ref. 58652) and Lanuza Bay (Ref. 104756). Also Ref. 4848, 53416.

 Entered by: Capuli, Estelita Emily - 07.02.92
 Modified by: Valdestamon, Roxanne Rei - 03.06.15
 Checked by: Capuli, Estelita Emily - 08.06.95

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