Molluscoidea — Orustaoea, 



Cap. XXIII. 59.46 Molluscoidea (Brachiostoma]. 

 Cap. XXIV. 59.47 Bryozoa. 



47 Bryozoa 



.1 Gymnolaemata 

 •2 Phylactolaemata 



47.3 Pterobranchia 

 .4 Entoprocta 



Phoronia v. 51.76. 



Cap. XXV. 59.48 Brachiopoda. 

 Cap. XXVI. 59.49 Tunicata. 



Cap. XXIX. 59.52 ARTHROPOD A. 

 Cap. XXX. 59.53 Crustacea (incl. Fantopoda et Xiphosura). 



