256 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Leger, L., and Duboscq, 0. 



1911. Deux nouvelles espfeces de grSgarines appartenant 

 au genere Porospora. Ann. Univ. Grenoble 23: 

 401-404. 



Lucas, M. S. 



1934. Ciliates from Bermuda sea urchins. I. Metopus. 

 Jour. Roy. Micros. Soc. 44: 79-93. (Cited from 

 Powers, 1935.) 



Mackin, J. G.; Owen, H. M.; and Collier, A. 



1950. Preliminary note on the occurrence of a new 

 protistan parasite, Dermocysiidium marinum n. sp., 

 in Crassostrea virginica (Gmelin). Science 111: 

 328-329. 



NOLAND, L. E. 



1937. Observations on marine ciliates of the gulf coast 

 of Florida. Trans. Am. Micros. Soc. 56 (2): 160-171. 



-, and FiNLET, H. E. 



1931. Studies on the taxonomy of the genus Vorticelta. 

 Trans. Am. Micros. Soc. 50 (2): 81-123. 



Pearsb, a. S. 



1932. Animals in brackish water ponds and pools at 

 Dry Tortugas. Papers Tortugas Lab. Carnegie 

 Inst. Washington 28: 125-141. 



1932a. Observations on the parasites and commensals 

 found associated with crustaceans and fishes at Dry 

 Tortugas. Papers Tortugas Lab. Carnegie Inst. 

 Wash. 28: 103-115. 



1949. Zoological names, a list of phyla, classes and 

 orders. 4th Ed. Durham, N. C. 



Powers, P. B. A. 



1933. Studies on the ciliates from Tortugas echinoids. 

 Yearbook Carnegie Inst. Washington 32: 278-280. 



1935. Studies on the ciliates of sea urchins, a general 

 survey of the infestations occurring in Tortugas 

 echinoids. Papers Tortugas Lab. Carnegie Inst. 

 Washington 29: 293-326. 



Prytherch, H. F. 



1938. Life-cycle of a sporozoan parasite of the oyster. 



Science 88: 451-452. 

 1940. The life cycle and morphology of Nematopsis 

 ostrenrum, sp. nov., a gregarine parasite of the mud 

 crab and oyster. Jour. Morph. 66 (1): 39-65. 



Rathbun, M. J. 



1930. The cancroid crabs of America. U. S. Nat. Mus. 

 Bull. 152: 1-609. 



Schaeffer, a. a. 



1926. Taxonomy of the amebas with descriptions of 

 thirty-nine new marine and freshwater species. 

 Carnegie Inst. Washington Pub. 345: 1-116. 



Sprague, V. 



1949. Species of Nematopsis in Oslrea virginica. Jour. 

 Parasit. 35 (6-2), page 42. 



1950. Studies on Nematopsis prytherchi Sprague and 

 N. ostrearum, emended. Mimeographed for private 

 distribution by Texas A and M Re.search Foundation. 

 Pp. 1-59. 



1950a. Notes on three microsporidian parasites of 

 decapod Crustacea of Louisiana coastal waters. 

 Occasional Pap. Marine Lab. Louisiana State Univ. 

 5: 1-8. 



ViOSCA, p. 



1943. A critical analysis of practices in the management 

 of warm-water fish with a view to greater food produc- 

 tion. Trans. Am. Fisheries Soc. 73: 274-283. 



Wichterman, R. 



1940. A new ciliate from a coral of Tortugas. Jour. 



Parasit. 26 (Suppl.) : 25-26. 

 1942. Cytological studies on the structure and division 



of three new ciliates from the littoral earthworm of 



Tortugas. Papers Tortugas Lab. Carnegie Inst. 



Washington Pub. 524: 83-103. 

 1942a. A new ciliate from a coral of Tortugas and its 



symbiotic zooxanthellae. Papers Tortugas Lab. 



Carnegie Inst. Washington Pub. 524: 105-111. 



