28 University of California Publications in Zoology [Vol. 11 



form and the slightly smaller size of the hypotheea as compared 

 with the epitheea. A compensating expansion of the ventral 

 area is also evident. 



ZoOLOGiCAi Laboratory, 



University of California. 



Transmitted, October 4, 1912. 



LITERATURE CITED 



KoFOiD, C. A., and Michener, J. R. 



1911. Reports on the scientific results of the expedition to the Eastern 

 Tropical Pacific, in charge of Alexander Agassiz, by the 

 U. S. Fish Commission Steamer "Albatross," from October, 

 1904, to March, 1905, Lieut. Commander L. M. Garrett, 

 U. S. N., commanding. XXII. New genera and species of 

 dinofiagellates. Bull. Mus. Comp. Zool. Harvard College, 54, 

 265-302. 



KOFOID, C. A. 



1911a. Dinoflagellata of the San Diego Region, IV. The genus Gon- 



yaulax with notes on its skeletal morphology and a discussion 



of its generic and specific characters. Univ. Calif. Publ. 



Zool., 8, 187-286, pis. 9-17, 5 figs, in text. 

 1911b. Dinoflagellata of the San Diego Region, V. On Spiraulax, a 



new genus of the Peridinida. Univ. Calif. Publ. Zool., 8, 



295-300, pi. 18. 

 Lemiiermann, E. 



1907. Brandenburgische Algen, IV. Gonyaulax palustris Lemm., eine 



neue Susswasser-Peridinee. Bot. Centralbl. 21, 296-300, 5 



figs, in text. 



