402 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



PLATE 43 



Fig. 1. Lithophylliini amplostratutri. Four clumps showing the 

 diameter and arrangement of the branches. The lower 

 left-hand figure shows their length and erect branching. 

 In none does the anastomosis \vhich occurs near the base 

 show particularly clearly. The right-hand corner of the 

 large central piece sho^vs the margin of the basal crust. 

 Ecuador, x 0.85. 



