INFUSORIA. 
Prot. 9 
INFUSORIA. 
Papers, &o. 
[In addition to some cited under Rliizopoda^ but relating to Infusoria 
as well.] 
25. Butschli, O. Ueber Dendrocometes paradoxus, nebst einigen 
Bemerkungen iiber Spirochona gemmipara, &c. Z. wiss. Zool. xxviii. 
p. 49, pi. vi. 
26. Fromentel, E. de. Etudes sur les Microzoaires ou Infusoires 
proprement dits. Journ. Micrograpbie, i. p. 75. [Not seen by the 
Recorder.] 
27. Hertwig, R. Ueber den Bau und die Entwickelung der Spirochona 
gemmipara. Jen. Z. Nat. xi. p. 149, pis. x.-xii. 
28. Leidy, J. On intestinal parasites of Tcrmes favipes. P. Ac. 
Philad. 1877, p. 146. 
29. . Remarks on some Parasitic Infusoria. Tom. cit. p. 259. 
30. Van Rees, — . Bijdrage tcJt de Biologie der Infusorien. (Prize 
dissertation of the Athenaeum of Amsterdam, with plate.) Reported 
in Niederl. Arch. Zool. iv. 
31. Wrzesniowski, A. W. “Ueber Infusorien;” and “ Beitrage zur 
Naturgeschichte der Infusorien.” Z. wiss. Zool. xxix. p. 267, 
pis. xix.-xxi. (the first is an abstract of the latter, as reported from 
the Protocols Assombl. Russ. Naturalists & Physicians, Sept., 1876, 
in Z. wiss. Zool. xxviii. p. 404). 
32. Zeller, E. Untersuchungen fiber die Fortpflanzung und die Ent- 
wickelung der in unseren Batrachiern schmarotzenden Opalinen. Z. 
wiss. Zool. xxix. p. 353, pis. xxiii. & xxiv. 
Cf also notes on the Littoral and Deep Fauna of the Lake Leman 
(Geneva), by F. A. Forel, in Bull. Soc. Yaud. xiv. p. 202 ; also a report 
on J. Fraipont’s “ Recherches sur les Acin^tariens,” &c., in Bull. Ac* 
Belg. (2) xliv. p. 692 (it refers to Ophryodendrum helgicum^ A cineta divisa, 
&c.). 
Genera, Species, &c., referred to. 
Spirochona gemmipara, St. (25) The apparent budding is real, for 
the old nucleus divides for the bud. (27) Relations of the spiral funnel 
further elucidated ; cilia feeble ; nucleus passes through many changes ; 
before the gemmation is divided into a granular and a homogeneous part: — 
three oval paranuclei ; in development, the nucleus shows much internal 
disturbance, and takes the form of several rods laid side by side, which 
end in threads ; paranuclei also lengthen, and give off three portions to 
the embryo, which is constricted off as a cleft cup ; no Acineta stage. 
