12300 Chaetodon semilarvatus Cuvier, 1831 Chaetodontidae Butterflyfishes Acanthuriformes Teleostei Bluecheek butterflyfish Western Indian Ocean: Red Sea and Gulf of Aden. AMNH 9451 1927 Chaetodon semilarvatus 21 N 38 E 2008 Chaetodon semilarvatus 22 N 38 E 2008 Chaetodon semilarvatus 22 N 38 E 2008 Chaetodon semilarvatus 22 N 38 E 2008 Chaetodon semilarvatus 23 N 37 E 2008 Chaetodon semilarvatus 18 N 40 E 2009 Chaetodon semilarvatus 19 N 40 E 2009 Chaetodon semilarvatus 19 N 39 E 2009 Chaetodon semilarvatus 24 N 37 E 2011 Chaetodon semilarvatus 24 N 37 E 2011 Chaetodon semilarvatus 25 N 36 E 2011 Chaetodon semilarvatus 26 N 36 E 2011 Chaetodon semilarvatus 26 N 36 E 2011 Chaetodon semilarvatus 26 N 35 E 2011 Chaetodon semilarvatus