CASTLE : NORTH AMERICAN ItllYNCHOBDELLIDyE. bd 



Linnaeus, C. 



1758. Sj-steina Naturae. 10th edition. 

 Moore, J. P. 



'98- The Leeches of the U. S. National Museum. Proc. U. S. Nat. Mas. 

 Vol. 21, pp. 543-563, PI. 40. 

 Moore, J. P. 



1900. A Description of Microbdella bianuulata, with Especial Reference to 

 the Constitution of the Leech Somite. Proc. Acad. Nat. Sci. Philadel- 

 phia, pp. 50-73, PI. 6. 

 Moquin-Tandon, A, 



'46. Monographic de la famille des Hirudinees. 8vo, 448 pp. Atlas, 

 14 PI. Paris. 

 Muller, O, F. 



1774. Vermium terrestrium et fluviatiliura, etc. 4to. Vol. 1, Havniae et 

 Lipsiae. (See Vol. I., " Helmmthica," p. 49.) 

 Nicholson, H. A. 



'73. Contributions to a Fauna Canadensis ; being an Account of Animals 

 dredged in Lake Ontario in 1872. Canadian Journal, Vol. 13, pp. 490- 

 506, 4 Textfigs. 

 Oka, A. 



'94. Beitrage zur Anatomic der Clepsiue. Zeit. f. wiss. Zool., Bd. 58, pp. 

 79-151, Taf. 4-6. 

 Savigny, J. C. 



'20. Systeme des Auuelides. Folio, Paris. 

 Say, T. 



'24. Zoology. Keating's Narrative of an Expedition to the Source of St. 

 Peter's River, etc., in 1823, under S. H. Long. 2 vols. Philadelphia. 

 Vol. 2, pp. 253-378, PI. 14, 15. 

 Verrill, A. E. 



'74. Synopsis of the North American Fresh- Water Leeches. Rept. U. S. 

 Fish Commissioner for 1S72-3, Pt. 2, pp. 666-689. 

 Whitman, C. O. 



'85. The External Morphology of the Leech. Proc. Amer. Acad. Arts and 

 Sci., Vol. 20, pp. 76-87, 1 PL 

 Whitman, C. O. 



'91. Spermatophores as a Means of Hypodermic Impregnation. Jour, of 

 Morph., Vol. 4, pp. 361-406, PI. 14. 

 Whitman, C. O. 



'91*. Description of Clepsine plana. Jour, of Morph., Vol. 4, pp. 407-418, 

 PI. 15. 

 Whitman, C. O. 



'92. The Metamerism of Clepsiue. Festschr. Leuckarts, pp. 3S5-395, PI. 

 39, 40, Leipzig. 



