HOLOTRICHA 735 



body; bilobed posteriorly; contractile vacuole terminal; macronu- 

 cleus ellipsoid, anterior; a micronucleus; ectoplasm thick anteriorly; 

 ciliation uniform (Chatton and Perard, 1921). One species. 



N. ctenodactyli C. and P. (Fig. 313, b). 70-550/z by 40-150/x; in the 

 colon of Ctenodactylus gundi. 



Genus Collinella Chatton and Perard. More elongate than Nicol- 

 lella; uniform ciliation; a groove extends from end to end; cytostome 

 at posterior end of the groove; contractile vacuole terminal; macro- 

 nucleus much elongated, central or posterior (Chatton and Perard, 

 1921). One species. 



C. gundi C. and P. (Fig. 313, c). 550-600 m by 100m; in the colon of 

 Ctenodactylus gundi. 



Genus Buxtonella Jameson. Ovoid; a prominent curved groove 

 bordered by two ridges from end to end; cytostome near anterior 

 end; uniform ciliation; in the caecum of cattle (Jameson, 1926). One 

 species. 



B. sulcata J. (Fig. 313, d). 55-124/x by 40-72 M . 



Genus Taliaferria Hegner and Rees. Body ovate; circular in cross- 

 section; ectoplasm is two-layered and thick; ciliation uniform; cyto- 

 stome anterior, subterminal; macronucleus and a closely attached 

 micronucleus near center; two contractile vacuoles; cytopyge (Heg- 

 ner and Rees, 1933). One species. 



T. clarki H. and R. (Fig. 313, e). 83-146/x by 42-83/z; in the caecum 

 and colon of the red spider monkey (Ateles geoffroyi). 



References 



Chatton, E. and Perard, C: (1921) Les Nicollelidae, infusoires 



intestinaux des gondis et des damans, etc. Bull. biol. France et 



Belgique, 55: 87. 

 Canella, M. F.: (1951) Contributi alia conoscenza dei Ciliati. II. 



Ann. Univ. Ferrara, Sez. 3, Biol. Anim., 1:81. 

 da Cunha, A. M.: (1914) Beitrag zur Kenntnis der Protozoenfauna 



Brasiliens. Mem. Inst. Oswaldo Cruz, 6: 169. 

 Faure-Fremiet, E.: (1951) The marine sand-dwelling ciliates of 



Cape Cod. Biol. Bull., 100:59. 

 Gelei, J. v.: (1933) Beitrage zur Ciliatenfauna der Umgebung von 



Szeged. II. Arch. Protist., 81:201. 

 Hegner, R. W. and Rees, C. W.: (1933) Taliaferria clarki, etc. Tr. 



Am. Micr. Soc, 52:317. 

 Ivanic, M.: (1933) Die Conjugation von Chilodon cucullulus. Arch. 



Protist., 79:313. 

 Jameson, A. P.: (1926) A ciliate, Buxtonella sulcata, etc. Parasitol- 

 ogy, 18:182. 

 Jones, E. E. Jr.: (1951) Encystment, excystment, and the nuclear 



cycle in the ciliate Dileptus anser. J. El. Mitch. Sc. Soc, 67: 



205. 



