INFUSORIA, ROIZOPODA. Pi'ot. 11 
Algiers. A. jolii, id. 1. c. p. 311, pi. xx. figs. 1 & 2; marine, Algiers. 
When suitably prepared, the suckers may bo seen to extend as delicate 
rods into the central region of the body. When killed with osmic acid, 
its nucleus has a vacuolated appearance. A . emaciata,\di. 1. c. p. 313, 
pi. xix. figs. 23-26 ; marine, Algiers. Exhibits great variation in its 
proportions, viz. from .008-062 mm. in the vertical, and from .016-.057 in 
the horizontal diagonals. A. fceiida^ id. 1. c. p. 315, pi. xix. figs. 6-22; 
marine, often in putrefying water, Brittany and Algiers. Exhibits 
extensive variation in form and size. Nucleus vacuolated. Formation of 
endogenous embryos occurs in this and the preceding species. In 
A.faitida^ the embryo bears five annular ciliated grooves at the time of 
birth. When they become attached, the cilia are absorbed, after forming 
pearl-like drops of protoplasm. 
Acineta livadiana, Mereschkowsky, (13) p. 214, pi. xii. fig. 10, Black 
Sea, near Livadia. 
Acineta dihdoMeria, Parona, (14) p. 81, fig. ; sea- water, Gulf of Genoa. 
Ilemiophrya thouleti and microsoma^ Maupas, (12) pp. 330 & 333, pi. xx. 
figs. 12, 13, & 3-6 ; marine, Algiers. 
General Anatomy and Physiology. 
Absorption of carbonic acid by Infusoria^ possibly indicated by some 
experiments made by K. Semper, Die natiirlichen Existeuzbedingungen, 
&c. (see General Subject), p. 416 of English edition. 
Ciliate Infmoria inhabited by a unicellular Alga identical with that 
which furnishes the green colour of Hydra, and now named by Brandt, 
(18) p. 143, Zoochlorclla conductrix. 
RHIZOPODA. 
Chief Works. 
16. Brady, H. B. Notes on some of the Reticularian Rhizopoda of the 
‘ Challenger’ Expedition. Q. J. Micr. Sci. xxi. p. 31. 
Gives a classification of the Foraminifera, and short diagnoses of 101 
new species, besides varieties, and a note on BilocuUna mud. 
17. . a. On some Arctic Foraminifera from Soundings obtained on 
the Austro-Hungarian North-Polar Expedition of 1872-74. Ann. 
N. H. (5) viii. p. 393, pi. xxi. b. Supplementary Note on some 
Foraminifera from soundings obtained by Capt. A. H. Markham, 
R.N., on the shores of Novaya Zemlya in 1879, tom. cit. p. 415. 
A includes 71 species, 4 being new (for synonyms, see the paper itself). 
A German account has been published in 1882, in Denk. Ak. Wien, xliii., 
with plate. 
18. Brandt, K. Ueber das Zusammenleben von Thieren und Algen. 
SB. Nat. Fr. 1881, p. 143. 
