98 ILLINOIS BIOLOGICAL MONOGRAPHS [98 



KOWALEWSKI, M. 



1895. Studya helminthologiczne. III. Bilharzia polonica, n. sp. Rozpraw Wydz., 

 mat.-przyr. Akad. Umiejet. Krakowie, (1) 31:1-30; 2 pi. 



1896. Studya helminthologiczne. IV. Bilharzia polonica, n. sp. Rozpraw Wydz., 

 mat.-przyr. Akad. Umiejet. Krakowie, (1) 30:1-12. 



1896a. fitudes Helminthologiques. IV. Amendements et Supplements au travail de 

 I'auteur sur le Bilharzia polonica sp. nov. Bull. acad. sci. Cracovie, 1896:146-148. 

 Lang, A. 



1880. Untersuchungen zur vergleichenden Anatomie und Histologic des Nervensystems 

 der Platyhelminthen. II. Ueber das Nervensyscem der Trematoden. Mitth. Zool. 

 Sta. Neapel, 2:28-52; 3 Taf. 



1884. Die Polycladiden des Golfes von Neapel. Fauna u. Flora von Neapel, (2) 11: 

 1-688; 39 pi. 



Lankester, E. R. 



1901. A Treatise on Zoology. IV. The Platyhelmia, Mesozoa, and Nemertini. Lon- 

 don. 204 pp. 

 La Rue, G. R. 



1917. Two New Larval Trematodes from Thamnophis marciana and Thamnophis 



eques. Occasional Papers Mus. Zool. Univ. Mich., No. 35; 14 pp., 1 pi. 

 Lebour, Marie V. 



1907. Larval Trematodes of the Northumberland Coast. Trans. Nat. Hist. Soc. 



Northumberland, n.s., 1:437-454; 5 pi. 

 Leidy, J. 



1877. On Flukes infesting Mollusks. Proc. Acad. Nat. Sci. Phila., 29:200-202. 



1890. Notices on Entozoa. Proc. Acad. Nat. Sci. Phila., 42:410-418. 



1904. Researches in Helminthology and Parasitology. Smiths. Inst. Misc. Coll. 



Vol, 46, 281 pp. 

 Leiper, R. T. 



1915. Report on the Results of the Bilharzia Mission in Egypt, 1915. III. Jour. R. 

 Army Med. Corps, 25:253-267; 15 Figs. 



1916. On the Relation between the Terminal-Spined and the Lateral-Spined Eggs of 

 Bilharzia. Brit. Med. Jour., 1916, 1:411. 



Leiper, R. T., and Atkinson, E. L. 



1915. Observations on the Spread of Asiatic Schistosomiasis. Brit. Med. Jour., 1915, 



1:201-203; 1 pi. 

 Lejtenyi, Th. 



1881. Ueber den Bau des Gastrodiscus polymastos Leuck. Abhandl. Senkenberg. 

 naturf. Ges. Frankfurt, 12:125-146; 3 Taf. 



Leuckart, R. 



1863. Die MenschUchen Parasiten. Leipzig. 766 pp. 



1886. Die Parasiten der Menschen. 2 Aufl. 1, Trematodes. Leipzig u. Heidelb. 



534 pp. 

 Leydig, Fr. 



1853. Helminthologische Notizen. Zeit. wiss. Zool., 4:382-384. 

 Lindner, E. 



1914. Ueber die Spermatogenese von Schistosomum haematobium Bilh. (Bilharzia 



haematobia Cobb.), mit besonderer Beriicksichtigung der Geschlechtschromosomen. 



Arch. ZeUforsch., 12:516-538; 2 Taf. 



LiNSTOW, O. 



1877. Enthelminthologica. Arch. Naturgesch., (1)43:173-198; 3 Taf. 

 Looss, A. 



1885. BeitrSge zur Kenntnis der Trematoden. Zeit. wiss. Zool., 41:390-446; 1 Taf. 

 1892. Ueber Amphistomum subclavatum Rud. Leuckart's Festschr., 142-167; 2 Taf. 



