. Journal of morphology . va of fifty-three days. In addition to the fiveprimary tentacles, the sixth, seventh, eighth, ninth, and tenth, tentacles areshown. Four pedicels and three buds are now found on each side of the mid-ventral radial canal, forming a more or less zigzag line. Five developed pedicelsand one bud arise ventrad from each lateral ventral radial canal. X 17^. Fig. 12. Dorsal view of larva represented in Fig. 11. The two posteriorpairs of dorsal papillae have grown larger. An anterior pair of papillte isdeveloped dorsad from the right and left dorsal radial canals. X nV2- Fig.
. Journal of morphology . va of fifty-three days. In addition to the fiveprimary tentacles, the sixth, seventh, eighth, ninth, and tenth, tentacles areshown. Four pedicels and three buds are now found on each side of the mid-ventral radial canal, forming a more or less zigzag line. Five developed pedicelsand one bud arise ventrad from each lateral ventral radial canal. X 17^. Fig. 12. Dorsal view of larva represented in Fig. 11. The two posteriorpairs of dorsal papillae have grown larger. An anterior pair of papillte isdeveloped dorsad from the right and left dorsal radial canals. X nV2- Fig. 13. Ventral view of larva of seventy-live days, showing the additionalthirteenth tentacle (LDd 2) and only a slight increase in the number of pedi-cels and buds over the fifty-three day holothurid. The mouth is well shown. X 141/0. Fig. 14. Dorsal view of larva represented in Fig. 13. The anus and analplates are prominent. X 14%. OF IIOLOTHUKIA FLORIUANA LINCOLN EDWAItDS. UDdl LDcU LDdl RDdl.
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