FAMILY II. CHLAMYDIACEAE 



959 



antibodies which fix complement with anti- 

 gen from Miyagawanella lymphogranuloma- 

 tosis. 



Pathogenic for man, apes and monkeys, 

 affecting only the cornea and the conjunc- 

 tiva, causing highly destructive lesions. 



Antibiotic- and chemo-therapy: Suscep- 

 tible to sulfonamides and to antibiotics. 



Source: Found in the scrapings of either 

 the cornea or the conjunctiva in cases of 

 trachoma. 



Habitat: The etiological agent of tra- 

 choma in man. 



2. Chlamydia oculogenitalis (Mosh- 

 kovskiy, 1945) Rake, comb. nov. (Chlamy- 

 dozoon oculogenitale Aloshkovskiy, Uspekhi 

 Souremennoi Biologii, 19, 1945, 12.) 



o.cu.lo.ge.ni.ta'lis. L. noun oculus eye; 

 L. adj. genitalis genital; M.L. adj. oculo- 



genitalis (apparently intended to mean) 

 the ocular and genital (organism). 



Resembles Chlamydia trachomatis morpho- 

 logically and in staining reactions. 



Cultivation: Has not been cultivated. 



Immunology: Same as for C. trachomatis. 



Pathogenic for man, baboons and mon- 

 keys. Causes an acute conjunctivitis and, 

 in man, an inflammation of the lower uro- 

 genital tract. 



Antibiotic- and chemo-therapy: Suscep- 

 tible to sulfonamides and to antibiotics. 



Source: Found in conjunctival exudates 

 and in exudates from infected urethra or 

 cervix. Also present in contaminated pools 

 of water. 



Habitat: The etiological agent of swim- 

 ming-pool conjunctivitis (neonatal, or in- 

 clusion, conjunctivitis). 



Genus II. Colesiota Rake, 1948. 

 (Rake, in Manual, 6th ed., 1948, 1119.) 



Co.le.si.o'ta. M.L. dim. ending -iota; M.L. noun Colesiota named for Prof. J. D. W. A. 

 Coles, the first to study these organisms. 



Usually coccoid cells, but pleomorphism is marked. Gram-negative. Occur intracytoplas- 

 mically as colonies. Cause ophthalmic diseases in sheep. 



The type species is Colesiota conjunctivae (Coles) Rake. 



1. Colesiota conjunctivae (Coles, 

 1931) Rake, 1948. (Rickettsia conjunctivae 

 Coles, 17th Rept. Dir. Vet. Serv. and Anim. 

 Ind. Union So. Africa, 1931, 175; Chlamy- 

 dozoon conjunctivae Moshkovskiy, Uspekhi 

 Souremennoi Biologii, 19, 1945, 19; Rake, 

 in Manual, 6th ed., 1948, 1119; Chlamydozoon 

 pecoris Zhdanov and Korenblit, Jour. Mi- 

 crobiol., Epidemiol, and Immunobiol. (Rus- 

 sian), No. 9, 1950, 43; Rickettsia conjunctivae 

 ovis Coles, Ann. New York Acad. Sci., 56, 

 1953, 460.) 



con.junc.ti'vae. L. adj. conjunctivus con- 

 nective; M.L. fem.n. conjunctiva the con- 

 junctiva; M.L. gen. noun conjunctivae of the 

 conjunctiva. 



Pleomorphic cells with diameters ranging 

 from 200 millimicrons to 2 microns. May be 



uniformly staining coccoid forms or bacil- 

 lary, triangular, annular or horse-shoe in 

 form. Do not occur in chains. Colony-like 

 masses are frequent. Not encapsulated. 

 Non-motile. Stain with ordinary aniline 

 dyes but less intensely than do bacteria. 

 Gram-negative. 



Cultivation: Has not been cultivated. 



Immunology: Unknown. 



Tissue tropism: Affects only the conjunc- 

 tiva and the cornea. 



Pathogenic for sheep. Causes acute con- 

 junctivitis and keratitis. 



Habitat: Found in the scrapings of the 

 cornea, the conjunctiva and in the dis- 

 charges from affected eyes of sheep. The 

 etiological agent of infectious, or specific, 

 ophthalmia in sheep. 



Genus III. Ricolesia Rake, gen. nov. 



Ri.co.le'si.a. Ri- an arbitrarily formed prefix taken from Rickettsia; M.L. noun Colesia 

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

 an arbitrarily formed generic name. 



