FAMILY II. CHLAMYDIACEAE 961 



le.sto.quar'di.i. M.L. gen. noun lesto- Immunology: Unknown. 



quardii of Lestoquard; named for F. Lesto- Pathogenic for swine. Causes acute con- 



quard. junctivitis and keratitis. 



Pleomorphic. Resembles Ricolesia con- Tissue tropism: Affects only the conjunc- 



junclivae morphologically and in staining tiva and the cornea, 



reactions. Habitat: The etiological agent of infec- 



Cultivation: Has not been cultivated. tious kerato-conjunctivitis in swine. 



Genus IV. Colettsia Rake, nom. nov. 

 (Unnamed new genus, Coles, Ann. New York Acad, of Sci., 56, 1953, 461, (89).) 



Co.lett'si.a. -ttsia an arbitrarily formed suffix taken from Rickettsia; Cole- from Coles; 

 named for Prof. J. D. W. A. Coles, the first to study these organisms; M.L. fem.n. Colettsia 

 an arbitrarily formed generic name. 



Large, pleomorphic cells occurring intracytoplasmically. Apparently non-pathogenic, 

 but may be saprophj^tic. Found only in the conjunctival cells of goats, sheep and cattle. 



The type species is Colettsia pecoris Rake. 



1. Colettsia pecoris Rake, nom. nov. horse-shoe and comma forms occur. Occur 



(See Coles, Ann. New York Acad, of Sci., scattered in the cytoplasm. Gram-negative. 



56, 1953, 461, (8).) Cultivation: Has not been cultivated. 



pe'co.ris. L. noun pecus cattle (as a col- Immunology: Unknown, 



lective herd); L. gen. noun pecoris of cattle. Apparently non-pathogenic, but may be 



Pleomorphic cells. Larger than members saprophytic, 



of the genera Colesiota and Ricolesia. Usual Tissue tropism: Found in the conjunctiva. 



form is ellipsoidal, 2 microns in diameter; Habitat: Found only in the cells of the 



the cells are often coccoid, but annular, conjunctiva of goats, sheep and cattle. 



Genus V. Miyagawanella Brumpt, 1938. 



(Brumpt, Ann. de Parasitol., 16, 1938, 153; Rickettsiafonnis Zhdanov and Korenblit, 



Jour. Microbiol., Epidemiol, and Immunobiol. (Russian), No. 9, 1950, 43; also 



see Zhdanov, Opredelitel Virusov Celovska i Zivotmych, Izd. Akad. Med. 



Nauk, U.S.S.R., Moskau, 1953, 175; see Philip, Canad. Jour. 



Microbiol., 2, 1956, 265.) 



Mi.ya.ga.wa.nel'la. M.L. fem. dim. ending -ella; M.L. fem.n. Miyagawanella named for 

 Prof. Y. Miyagawa, a Japanese bacteriologist, the first (1935) to grow the type species of 

 this genus in the chick embryo. 



Coccoid cells with a developmental cj^cle. Occur intracytoplasmically. Gram-negative. 

 Cultivable in chicken embryonic tissues in tissue culture. Susceptible to sulfonamides and 

 antibiotics. Pathogenic, causing various diseases in warm-blooded animals. 



The type species is Miyagawanella lymphogranulomatosis Brumpt. 



Key to the species of genus Miyagawanella. 



I. The etiological agent of lymphogranuloma venereum, lymphogranuloma inguinale, 

 climatic bubo and esthiomene in man. 



1. Miyagawanella lymphogranulomatosis. 

 II. The etiological agent of psittacosis (parrot fever). 



2. Miyagawanella psittaci. 



III. The etiological agent of ornithosis (Meyer). 



3. Miyagawanella ornithosis. 



IV. The etiological agent of one type of viral pneumonia. 



4. Miyagawanella pneumoniae. 



