V DESCRIPTION OF PLATES. 



PLATE 



XXXIV. Fig. 1. Bicellaria ciliata, p. 41, natural size:, fig. 2, 

 front ; fig. 3, back ; fig. 4, ovicells ; fig. 5, 

 avicularia. 



XXXV. Fig. 1. Bugula dentata, p. 46, natural size- fig. 2, 

 front; fig. 3, back; fig. 4, side; fig. 5, 



XXXVI. Fig. 1. Amastigia nuda, p. 40, natural size ; figs. 2, 3, 

 front; fig. 4, 6ac; fig. 5, dorsal avicu- 

 larium. 



XXXVII. Fig. 1. Caberea hookeri, p. 39, natural size; fig. 2, 

 front; fig. 3, 6ac&. 



XXXVIII. Fig. 1. Caberea boryi, p. 38, natural size; fig. 2, 

 /rora ; fig. 3, back ; figs. 4, 5, side ; figs. 6, 7, 

 younger cells. 



XXXIX. Fig. 1. Didymia simplex, p. 35, natural size; fig. 2, 

 front ; fig. 3, front with ovicelL 



XL. Fig. 1. Emma crystallina, p. 28, natural size; fig. 2, 

 front ; fig. 3, 6acAr. 



XLI. Fig. 1. Emma tricellata, p. 28, front; fig. 2, ac. 

 XLII. ^Etea ligulata, p. 31. 



XLIII. Fig. 1. Bugula neritina, p. 43, natural size; fig. 2, 

 front; figs. 3, 4, 6ac&; figs. 5, 6, ovicells. 



XLIV. Fig. 1. Bicellaria grandis, p. 42, natural size; fig. 2, 

 front ; fig. 3, back. 



XLV. Fig. 1. Notamia bursaria, p. 36, natural size ; fig. 2, 



front; fig. 3, back; fig. 4, Diagram to re- 



present the mode of connexion of the cells. 



Fig. 5. Gemellaria loricata, p. 34, natural size ; fig. 6, 



back and side. 



XLVI. Fig. 1. Caberea rudis, p. 38, natural size; fig. 2, 

 front; fig. 3, back. 



XLVII. Fig. 1. Caberea lata, p. 39, natural size; fig. 2, 

 front ; fig. 3, ac&. 



XLVHI. Fig. 1. Carbasea episcopalis, p. 52, natural size; fig. 2, 

 front; fig. 3, back. 



