PLATE 45 

 Fig. 61. Amaroucium aequaJi-siphonis. Zooid much enlarged, viewed from 

 right side. 



Pig. 62. Macroclinum pellucidum. Zooid much enlarged, viewed from left 

 side. 



Fig. 63. Macroclinum par-fustis. Zooid much enlarged, viewed from left side. 



Fig. 64 and 65, Distaplia occidentalis 

 Fig. 64. Zooid, much enlarged, right side. 

 Fig. 6.5. Anterior end of zooid, seen from within. 

 Figs. 66-68, Diplosoma pizoni. 

 Figs. 66-67. Zooid, showing stage in budding. 



Fig. 68. Digestive system with pigmented epithelium removed and spread 

 out to show parts. 



[508] 



