PLATE 23. 



Fig. 32. Tubulipora pulchra Macgillivray. The distal extremity of a 

 lobe of a colony showing an ovieell (oe.) with eharaeteristic aperture 

 (oest.) and ooeciopore (oep.). X 40. 



Fig. 33. T. pulchra. Habit sketch. X 1. 



Fig. 34. T. pulchra. The primary disk (dfc.) surrounded with a row 

 of teeth (t.); also the proximal extremities of two zooecia with lateral 

 teeth (lot. t.). X 100. 



Fig. 35. T. pulchra. A portion of the dorsal side of a colony showing 

 the dorsal teeth (dor. t.) and dorsal processes (dor. pro.) X100. 



Fig. 36. Mesenteripora meandrina Wood. Portion of a colony showing 

 its bilaminate formation, the terminal membrane or growing edge (gr. ed.) 

 and an ocecium (oc). X 10. 



Fig. 37. M. meandrina. Habit sketch. X 1. 



Fig. 38. M. meandrina. Habit sketch. X 1. 



Fig. 39. Idmonca calif ornica d'Orbigny. Portion of a branch to 

 show the form and arrangement of the zooecia. X 25. 



Fig. 40. I. calif ornica. Habit sketch of a specimen brought from 

 deep water. X 1. 



Fig. 41. I. californica. Habit sketch of a shore form showing anas- 

 tomosis. X 1. 



[280J 



