English: Fig. 5.—Metanauplius larva of Balanus (Naples), immediately preceding the Cypris larva; ventral view. The six pairs of biramous appendages of the Cypris stage are visible beneath the cuticle. The median simple eye and the compound eye are both visible.
(1) first antenna;
(2) second ,,
(3) mandibles;
(4) rudiment of the maxilla;
(5) first pair of biramous limbs;
(6) sixth ,,
(7) upper lip:
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.
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