22 Prot. 
PEOTOZOA. 
CoccidiuTriy g. n., Leuckart, (13) p. 254. Based on the oval forms of 
FsorospermicBy inhabiting chiefly the intestine and gall-ducts of Verte- 
brate animals. In their early stages, they are without envelopes and 
inhabit epithelial cells; at the close of growth they develop a strong 
shell ; they then abandon their resting-place, and their contents break up 
into a number of spores, besides granular masses and rod-liko ernbryoes. 
The spores are roundish or oval, and have a thin envelope. C. oviforme, 
sp. n., id. 1. c. p. 255, figs. 102, 106 & 107, liver of Rabbit. 
Coccidium rivolta, sp. n., Grassi [sw^m, p. 1]. 
Cono [r] rhynchua gibbosus, g. & sp. nn., = Gregarina ecMuri, Greef ; 
Greef, Verb. L.-O. Ac. ii. pp. 128 & 129, pi. v. figs. 64-61. 
Leuckart, (13) p. 285, is unable to recognize as Psorospermice the bodies 
described by Lindemann as such from the human hair, and is doubtful 
about those of the kidney. 
Amoeboid sarcodic parasites of the urinary bladder of the Pike. B. 
Gabriel, JB. schles. Ges. Ivi. p. 188, criticizes Lieberkiihn’s interpreta- 
tion of the Gregarine nature of these organisms. Ho gives an account 
of their development, and assigns them to a distinct group, intermediate 
between the Gregarinida and the Myxomyceies. 
Poincare, C. R. xci. p. 177, figs. 1-3, figures and describes some elon- 
gated organisms, marked by transverse lines, found in muscular fibre at 
the Paris slaughter-houses, which have some resemblance to Gregarinida^ 
but perhaps are stages of one of the Cestode worms. 
Psorosperms in the fish Aphredoderus sayanus ; J. A. Ryder, Am. Nat. 
xiv. p. 211, figs. 1 & 2. 
H. T. Whittell, J. Quek. Club, 1880, p. 47, “ On the Association of 
Bodies resembling Psorospermia with the Degeneration of Hydatid 
Cysts,” concludes that Psorospermice occur within such cysts, but as they 
do not occur in the early stages of the Hydatid, their presence affords 
evidence that degeneration has commenced in the cyst ; they are perhaps 
the cause of this degeneration. 
iNCERTiE SEDIS. 
Dimystax perrieri, g. & sp. nn., P. Van Tieghem, Bull. Soc. Bot. Fr. 
xxvii. p. 130, Sea-water, Roscoff. A globose mass, a centimetre and 
upwards in breadth, attached, composed of cells; gelatinous, coloured 
green by amorphous chlorophyll. Each cell has a delicate investing 
membrane ; no nucleus or vacuole ; a tuft of cilia at one point ; two 
flagella, situated at the sides, proceeding from a protoplasmic band which 
traverses the cell. In development, the cilia are lost, and dichotomous 
continuous fission takes place, producing a globe which becomes covered 
with cilia. The author is uncertain to which Kingdom to refer it. [In 
many points this form recalls Volvox and allied organisms. — Recorder.] 
