No. 2.] ANATOMY OF A SPECIES OF PLATYASPJS. 67 



LITERATURE. 



'72 Huxley. Anatomy of Invertebrated Animals. 



HoYLE. Article Trematoda. Encyclopaedia Britannica. 

 '85 PoiRiER. Trematoda, nouv. ou peu connu. Bull, de la Soc. Philotti. 



Paris, 7 ser., x, pp. 20-42, pis. 1-4. (Quoted from Broun. Original 



not seen by me.) 

 '92 Braun. Article Trematoda. Bronn's Klassen u. Ordnungen. Vol. 



iv, p. 897. 

 '92 MONTICELLI. Article Cotylaspis. Festschrift 70. Geburtstag R. 



Leukarfs. 

 '94 NiCKERSON. On Stichocotyle nephropis Cunningham, a Parasite of 



the American Lobster. Zool. Jahrb. 8, pp. 477-480, Taf. 29-31. 

 '98 OSBORN. Observations on the Parasitism of Anodonta plana Lea. 



Zool. Bulletin. Vol. i, p. 301. 



Biological Laboratory of Hamline University, 

 March 22, 1898. 



