Auxis rochei quiz


Bullet tuna

Drag and drop Auxis rochei into the drop zone.

Correct!

The patterned dorsal naked area of Auxis rochei does not extend anterior of the pectoral-fin tips. Auxis thazard is on the left.

Incorrect.

The patterned dorsal naked area of Auxis rochei does not extend anterior of the pectoral-fin tips. Auxis thazard is on the left.

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Drag and drop Auxis rochei into the drop zone

Correct!

Auxis rochei can be identified by the patterned dorsal naked area not extending anterior of the pectoral-fin tips. Auxis rochei is bottom right, left is Auxis thazard and top is Euthynnus affinis.

Incorrect.

Auxis rochei can be identified by the patterned dorsal naked area not extending anterior of the pectoral-fin tips. Auxis rochei is bottom right, left is Auxis thazard and top is Euthynnus affinis.

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Auxis rochei usually have ~3 black spots present between pectoral- and pelvic-fin bases

Katsuwonus pelamis usually have ~3 black spots present between pectoral- and pelvic-fin bases. Auxis rochei only have markings on the upper surface behind the first dorsal fin.

Good job!

Katsuwonus pelamis usually have ~3 black spots present between pectoral- and pelvic-fin bases. Auxis rochei only have markings on the upper surface behind the first dorsal fin.

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Auxis rochei have 5 – 11 narrow, dark, horizontal stripes on upper sides.

It is Sarda orientalis that have 5 – 11 narrow, dark, horizontal stripes on upper sides. Auxis rochei have ~15 vertical dark bars on their upper sides.

Correct!

It is Sarda orientalis that have 5 – 11 narrow, dark, horizontal stripes on upper sides. Auxis rochei have ~15 vertical dark bars on their upper sides.

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Drag and drop Auxis rochei into the drop zone.

Correct!

Auxis rochei can be identified by the patterned dorsal naked area not extending anterior of the pectoral-fin tips. Auxis rochei is on the top left and Euthynnus affinis is on the bottom.

Incorrect.

Auxis rochei can be identified by the patterned dorsal naked area not extending anterior of the pectoral-fin tips. Auxis rochei is on the top left and Euthynnus affinis is on the bottom.

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