18738.] 350 [Morse, 
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C WliMny, 
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WM zz f— 
y 
Embryos of Worms. 
Fig. 82. Serpula. Fig. 83. Spio. Fig. 84. Melicerta (Rotifer). Vig. 85. Pileo- 
laria. Fig. 33. Phoronis. (Fig. 82 original. Figs. 83 and 85 from Claparéde. 
Fig. 34 from Huxley. Fig. 35 from Dyster.) 
Iimbryos of Drachiopods. 
Figs. 37, 38, 89. Thecidium (from Lacaze Duthiers). 
Figs. 40, 41, 42. Terebratulina (original). 
