phore." (Proc. Amer. Soc. Zool., 14th Ann. Meet.) Anat. Record, 



Vol. 11, No. 6, p. 514-516. 

 CROZIEB, W. J. 1917. The nature of the conical bodies on the mantle of 



certain nudibranchs. 



NAUTILUS, Vol. 30, p. 103-106. 

 SMALLWOOD, W. M. 1910. Notes on the hydroids and nudibranchs of 



Bermuda. 



Proc. Zool. Soc. London, 1910, Part I, p. 137-145. 



DESCRIPTION OF FIGURES, Plate VI. 



FIG. 1. Branching gills. 



FIG. 2. Ridges about the branchial collar; a, anterior; 6, posterior; c, 



branchial collar (gills not shown); d, triangular depressions. 

 FIG. 3. Lobed condition of the buccal veil. 

 FIG. 4. A bifurcate rhinophore; c, collar of rhinophore. 

 FIG. 5. Fused rhinophoral pockets; a, rhinophores extended; 6, retracted. 



