FORMATION OF PROGLOTTIDS IN CROSSOBOTHRIUM. 221 



gation particularly in any forms which suggest a departure from 

 the type of development hitherto supposed to be without ex- 

 ception. 



ZOOLOGICAL LABORATORY, UNIVERSITY OF MISSOURI, 

 COLUMBIA, Mo., June 15, 1906. 



LITERATURE. 

 Leuckart, R. 



'63 Die menschlichen Parasiten und die von ihnen herruhrenden Krankheiten. 

 Erster Bd., Leipzig und Heidelberg, 1863. Also subsequent editions. 



Lang, A. 



'82 Der Bau von Gunda segmentata, etc. Mith. aus. Zool. St. Neap., Bd. 3, 

 1882, p. 187. 



Linton, E. 



'86 Notes on the Entozoa of Marine Fishes. Rept. of U. S. Fish Comm. for 

 1886. Published 1889. 



Braun, M. 



'94-1900 Cestodes, IV. Bd., ab. I, l>, in Braun's Klassen und Ordungen des 

 Thier-reichs. 



Smith, H. M. 



'97 The Fishes found in the Vicinity of Woods Hole. U. S. F. C. Bull, for 

 1897. Published in 1898. 



Liihe, M. 



'98 Die Gliederung von Ligula. Centralb. Bakt. Parasitk., I abth, 23 Bd., p. 

 280-6. 



Linton, E. 



'99 Fish Parasites collected at Woods Hole in 1898. U. S. F. C. Bull, for 1899. 

 Published in 1900. 



Whitman, C. 0. 



'99 The Origin of Metamerism. Marine Biol. Laby. Lectures for 1899. Ginn 

 & Co., Boston. 



Linton, E. 



'99 Parasites of the Fishes of the Woods Holl Region. U. S. F. C. Bull, for 

 1899. Published in 1901. 



Schneider, K. C. 



'02 Vergleichender Histologie derr Thiere. Jena, 1902, G. Fischer. 



Child, C. M. 



'02 Abnormalities in the Cestode" Moniezia Expansa." Biol. Bulletin, Vol. III., 

 No. 3, 1902. 



'04 Amitosis in Moniezia. Anat. Anz., XXV. Bd., 1904. 



