367] NORTH AMERICAN POLYSTOMIDAE—STUNKARD 87 



GOLDSCHMIDT, R. 



1902. Untersuchungen uber die Eireifung, Befruchtung und Zelltheilung bei 



Polystomum integerrimum Rud. Zeit. f. wiss. Zool., 71 :397-44S, 3 pi. 

 \go2A. B'emerkungen zur Entwicklungsgeschichte des Polystomum integer- 

 rimum Rud. Zeit. f. wiss. Zool., 72:180-189, 11 figs. 

 1909. Eischale, Schalendriise und Dotterzellen der Trematoden. Zool. Anz., 

 34:481-498. 

 Goto, S. 



1894. Studies on the Ectoparasitic Trematodes of Japan. Jour. Coll. Sci., 



Imp. Univ. Japan, 8, pt. i, 300 pp., 27 pi. 

 1899. Notes on Some Exotic Species of Ectoparasitic Trematodes. Jour. 

 Coll. Sci., Imp. Univ. Japan, 12:263-295, 2 pi. 

 Halkin, H. 



igo2. Recherches sur la maturation, la fecondation et la developpement du 

 Polystomum integerrimum. Arch. d. Biol., 18:291-359, pi. 10-14. 

 Haswell, W. a. 



1907. Genito-intestinal Canal in Polvclads. Zool. Anz., 31 :643-644. 

 HOYLE, W. E. 



1888. Trematoda. Encyc. Brit. 9 ed., 23 :53S-540. 



IjIMA, I. 



1884. Ueber den Zusammenhang des Eileiters mit dem Verdauungscanal bei 

 gewissen Polystomeen. Zool. Anz., 7 :635-639. 

 Jagerskiold, L. a. 



1899. Ueber den Bau von Macraspis elegans. Of vers. Vet-Akad. Fordh., 

 3:197-214, I pi. 

 Johnston, S. J. 



1912. On Some Trematode Parasites of Australian Frogs. Proc. Linn. Soc. 



N. S. Wales, 37:285-362, pi. 14-43. 

 1914. Trematode Parasites and the Relationships and Distribution of their 

 Hosts. Rep. Austral. Ass. Adv. Sci., 1914:272-278. 

 Kelly, H. M. 



1899. A Statistical Study of the Parasites of the Unionidae. Bull. 111. St 

 Lab. Nat. Hist., 5:399-418. 



KOFOID, C. A. 



1899. On the Specific Identity of Coiylaspis insignis Leidy and Platyaspis 

 anadontae Osborn. Zool. Bull. Boston, 2:179-186. 

 KuHL, H., und Hasselt, J. C. van 



1822. P oly stoma midac. Isis, 1822:113-115. (Cited after Braun, 1879-1893.) 

 KuHN, J. 



1829. Description d'un nouvel epizoaire du genre Polystomum qui se trouve 

 sur les branchies de la petite roussette {Squalus catulus) suivie de quelques 

 observations sur le Distomum megastomum leporis. Ann. d. sc. d'obs., 

 2 :46o-465. 

 Leidy, J. 



1851. Helminthological Contributions II. Proc. Acad. Nat. Sci. Phila., 

 5 :224-227. 



