Fig. 131. — Atlanta. Fig. 132. — Carinaria. Fig. 133. — Clione 



Fig. 134. 



Fig. 135. Fig. 136. 



Fig. 137. 



Fig. 134. — Oyster Larva. (After Hoek.) 



Fig. 135. — Shelled Pteropods: Above, Hyalea; below, Sty- 



liola. 

 Fig. 136. — Veliger Larvae: Above, Dorsal; below, Ventral. 

 Fig. 137. — Larva of a Polyzoan. 



Fig. 138.— Glaucus ("Blake"). 



