PLATE 25. 



Fig. 48. Liehcnopora calif or nica (d'Orbigny) Conrad. A small colony 

 showing arrangement of zocecia in connate bundles, ocecium (oe.) and 

 oceeiopore (oep.) X 20. 



Fig. 49. L. calif orivica. Habit sketch. X 1. 



Fig. 50. Lichenopora verrucaria (Fabricius) Hincks. Portion of a 

 colony showing arrangement of zooecia and the ocecium (oe.) with its 

 oceeiopore (oep.) X 25. 



Fig. 51. Heteropora pelliculata Waters. Habit sketch. X 2. 



Fig. 52. H. pelliculata. Habit sketch. X 2. 



Fig. 53. B. pelliculata. Portion of the surface of a branch showing the 

 zocecial apertures (zoe. ap.) and the apertures of the interstitial canals 

 (inter, can.), x 40. 



Fig. 54. B. pelliculata. Portion of the surface of a colony in which the 

 interstitial canals are covered by a delicate calcareous layer, the zocecial 

 apertures only visible (roe. ap.). X 40. 



Fig. 55. B. pelliculata. Portion of the surface of a colony showing 

 the projection of the zocecial tubes beyond the surface (roe.) when in a 

 sheltered position. X 40. 



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