SPIROTRICHA, HETEROTRICHA 811 



tened, round or ovoid; edge with membranelle zone which extends 

 to pharyngeal funnel; macro nucleus long chain-form; without con- 

 tractile vacuole; commensal in salt water animals. 



L. macfarlandi Stevens (Fig. 346, /). Average 90-1 10m by 45-60/t; 

 diameter of basal disc 40-45/1 ; basal disc circular; macronuclei in 

 25-35 parts in 4 groups; commensal in the respiratory tree of Sticho- 

 pus calif ornicus (Stevens, 1901). Morphology, fission and regenera- 

 tion (Balmuth, 1941, 1942). 



L. conklini S. (Fig. 346, g). 100-135/* long; commensal in Crepidula 

 plana of Atlantic coast. 



References 



Andrews, E. A.: (1914) The bottle-animalcule, Folliculina; ecologi- 

 cal notes. Biol. Bull, 26:262. 



■ (1921) American Follinulinas: taxonomic notes. Am. Nat., 



55:347. 



(1923) Folliculina: case making, anatomy and transforma- 

 tion. J. Morphol., 38:207. 



(1942) Parafolliculina violacea at Woods Hole. Biol. Bull., 



83:91. 



Balamuth, W. : (1941) Studies on the organization of ciliate Pro- 

 tozoa. I. J. Morphol., 68:241. 



(1942) II. J. Exp. Zool., 91 : 15. 



Beers, C. D.: (1948) Encystment in the ciliate Bursaria truncatella. 



Biol. BuR., 94:86. 

 Beltran, E.: (1933) Gruberia calkinsi, etc. Ibid., 64:21. 

 Biggar, Ruth B.: (1922) Studies on ciliates from Bermuda sea 



urchins. J. Parasitol., 18:252. 

 Blattner, H.: (1926) Beitrage zur Reizphysiologie von Spirosto- 



mum ambiguum. Arch. Protist., 53:253. 

 Brumpt, E. : (1909) Demonstration du role pathogene du Balantid- 



ium coli et conjugaison de cet infusoire. C. R. Soc. biol., 67: 103. 

 Carini, A. : (1938) Sobre um Nyctotherus da intestino de um grillo- 



talpideo. Arch. Biol., 22, 1 p. 

 (1938a) Sobre um Nyctotherus da intestino da "Testudo 



tabulata." Ibid., 22, 2 pp. 

 (1939) Sobre um Nyctotherus da cloaca de uma Amphis- 



baena. Ibid., 23, 1 p. 

 — ■ (1940) Contribuicao ao estudo dos nictoteros dos batraquios 



do Brasil. Ibid., 24, 15 pp. 



(1945) Sobre um Nyctotherus do Crossodactylus gaudi- 



chaudi. Ibid., 29, 2 pp. 



da Cunha, A. M.: (1915) Spirorhynchus verrucosus, etc. Brazil Med- 

 ico, 19:3. 



Dewey, Virginia C: (1939) Test secretion in two species of Folli- 

 culina. Biol. Bull., 77:448. 



Dierks, K.: (1926) Untersuchungen uber die Morphologie und 

 Physiologie des Stentor coeruleus, etc. Arch. Protist., 54: 1. 



Fernandez-Galiano, D.: (1948) Los cilios tactiles de Nyctotherus 



