PLUMATELLA TEREBRATULINA 89 



Nitsche: Beitrage zur Kenntnis der Bryozoen. Ueber die Anatomie 

 und Entwicklungsgeschichte von Flustra membranacea. Zeit. f. wiss. 

 Zool., 21, 1871. 



O'Donoghue, Charles H., and Elsie O'Donoghue: Second List of Bryozoa 

 from Vancouver Island Region. Contrib. to Canadian Biol, and 

 Fisheries, N. S. Ill, pp. 47-132. (See Bibliography list, 1926.) 



Osburn, T. C: Bryozoa of Woods Hole. Bull. Bur. Fish., xxx, 1910, 

 Doc. No. 760, 1912. 



BRACHIOPODA 



TEREBRATULINA 



Examine specimens on the demonstration table and notice: 



1. Shell. The difference in the size and shape of the two 

 valves and their position in relation to the body. How are 

 the valves articulated? How are they opened? 



2. Peduncle. Its position. What is its use? 



3. Muscles. Those used in opening and closing the shell. 



4. Lophophore. Consisting of two elongated arms with a 

 double row of tentacles on each. 



5. Mouth. Notice its relation to the grooves running be- 

 tween the rows of tentacles on each of the arms of the 

 lophophore. 



Brooks: Development of Lingula. Ches. Zool. Lab. Sci. Results, 1878. 



Conklin: The Embryology of a Brachiopod, Terebratulina septen- 

 trionalis. Proc. Am. Phil. Soc, 41, 1902. 



Hancock: On the Organization of Brachiopoda. Trans. Roy. Soc, Lon- 

 don, 148, 1858. 



Morse: Observations on Living Brachiopoda. Mem. Bost. Soc. Nat. 

 Hist., 5, 1902. 



