PROTOZOA. 
681 
Aporea ambigua, Bailey. Archer calls attention to a form referable, he 
thinks, to this species of Bailey. Quart. Journ. Mic. Science, 1809, p. 421. 
Vasicola ciliata, gen. et sp. nov., Tatein, 1. c. p. 117, pi. iv. figs. 1-7. No 
generic or specilic diagnosis of this Infusorium is given. It occurs both as a 
free swimming and as an invaginated form. The investing sheath is firm, 
hyaline, vase-shaped, transversely marked. The animal is ciliated all over. 
Oral aperture is large, and the raised margin is edged with long cilia. 
Habitat unknown. 
Cothmuia opercuUgera^ sp. n., Kent, I, c. p. 290, pi. 12. figs. 1-4, Victoria 
Docks, London. 
Euplotcs paradoxa^ sp. n., Kent, c. p. 292, pi. 12. fig. 6, Victoria Docks, 
Ivondon. 
Acineta socialise sp. n., Kent, /. c. p. 292, pi. 12. figs. 0, 7, Victoria Docks, 
London. 
IIHIZOPODA. 
Mr. Robertson gives a list of thirty -five species of Foraminifera taken in 
about forty fathoms, seven miles south-east of the Eddystone. Rep. Brit 
Assoc. 1869, p. 91. 
Clathridina clegam. Greeff, 1. c. p. 467, and tab. 26. figs. 1-7, describes 
this beautiful form at great length, slightly amending the specific diagnosis. 
He mentions two forms of reproduction met with. Ho argues that both the 
perforate globe and stipes are siliceous, as they withstand the action of strong 
sulphuric acid. He also puts forward the somewhat strange suggestion that 
the formation of colonies by sever al individuals being attached to each other 
by means of their stipes, may be in connexion with a sexual reproduction. 
4 Acanthoegstis pertgana, sp. n.. Archer, 1. c. p. 2d2, pi. 16. fig. 1, counties 
Wicklow and Westmeath. 
Acanthoegstis vtrtdts (Ehrbg.), Greeff, 1. c. p. 481, tab. 26. figs. 8-17, de- 
scribes and figures this species. Is not this A. turfacea, Carter ? and is not 
A. turfacea, Carter, quite different from Actinophrgs viridis, Ehrbg. ? Greeff 
quotes Raphidiophrgs viridis, Archer, as a synonym ; but there is really no 
similarity between these genera. 
Acanthoegstis viridis. It may be doubted w'hether this is not the A. tur- 
facea, Carter, and a totally different form from the Actinophrgs riVjW/ 5 ,'Ehrbg. 
For an account of the species, see Grenacher, 1. c. p. 289. 
A. spinifera, sp. n., Greeff, 1. c. p. 493, tab. 27. fig. 20-23. Some specimens 
were found with minute yellow bodies in their interior, which the author 
believes, though he has not absolutely seen the change from one stage to 
another, to be the young undeveloped forms represented in figures 24 to 
28 ; the three latter of which certainly represent Biplophrgs archeri, Barker 
{vide Zool. Record, 1868, p. 689). He further thinks the form represented in. 
fig. 29 to be but a further stage of Biplophrgs ; but this is s,wrQ\y Vgstophrgs 
oenlea, Archer ; and it seems scarcely probable that three such forms should 
be only stages in the development of A. spinifera. 
A. pallida, sp. n., Greeff, 1. c. p. 489, tab. 27. fig. 19. A pale form, perhaps, 
of A. turfacca. 
Astrodiscidus, gen. nov., Greeff, /. c. p. 496. Body of two distinct regions; 
the outer hyaline, porous, siliceous, not acted on by sulphuric acid ; no ex- 
ternal processes ,* the inner a sarcode mass, containing a round, smoothly^ 
18 69. [voL. VI.] 3a 
