National Geographic : 1927 Sep
LIVING JEWELS OF THE SEA 7/f! -,4 ational Geographic Society ignited 115 Diameters MINUTE HOBGOBLINS OF THE DEEP While many of the tiny crustaceans of the open sea are merely the larval forms of much larger creatures, there also are great numbers of Plankton whose adult size is barely discernible to the naked eye. At the bottom of the picture is Caprella, an adult animal. The others are various kinds of crustaceans in their larval stages. The specimens, which were taken off the Atlantic coast of the United States, include: 1, Nauplius larva ; 2, Zoea larva; 3, Cypris larva : Sacculina, and 4, Caprella, fully matured.