7 Prot. 
PROTOZOA. 
Metschnikoff, E. Zur Lehre fiber die intracellulare Yerdauung 
niedere Tliiere. Zool. Anz. v. pp. 310-316. 
CILIATA. 
Phillips, F. W. On a new Ciliate Infusorian allied to Pleuronema. 
J. L. S. xvi. pp. 476-478. 
Calyptotricha pleuronem\at]oides , the new genus and species described, 
agrees in structure with Pleuronema ; but differs from that type in the 
circumstance that it excretes and inhabits an elongate hyaline lorica, 
attached usually by its lateral surface to aquatic plants, and possessing a 
teat-shaped aperture at each extremity, from out of which the animal- 
cule occasionally protrudes the anterior region of its body. Inhabiting 
fresh-water. 
Leidy, J. A new Infusorian belonging to the genus Pyxicola } S.-Kent. 
P. Ac. Pliilad. 1882, pp. 252 & 253, 2 figs. 
Describes a new fresh-water species referable to the genus Pyxicola. 
In shape the lorica resemble that of P. pusilla aud P. affinis, belonging 
to the English fresh- water series, but is annulate, as in P. socialis , a salt- 
water type. 
. Infusorial parasites of Enchytrceus and Distichopus. L. c. pp. 
145-148, 4 figs. 
Anoplophrya modesta aud A. funiculus are new Opalinida obtained 
from the body cavity of the Annelid Enchytrceus , and a third species, 
A. meli, from that of a species of Lumhricus. A new Gregarine, Mono - 
cystis mitis , remarkable for enclosing a variable number of curved 
elliptical bodies, the supposed spores, inhabited a Distichopus. 
Stokes, A. 0. On a new species of Tliuricola. Am. Micr. J. iii. 
pp. 182 & 183. 
A new species referable to the Peritrichous genus Thuricola, S.-Kent, 
found in fresh-water in the leaflets of Ceratophyllum , is figured and 
described under the title of T. innixa. 
Mereschkowsky, C. Les Suctocilies, nouveau groupe d’Infusoires inter- 
m6diares entre les Cilies et les Acinetiens. C. R. xcv. pp. 1232- 1235. 
An Infusorian obtained from the Bay of Naples, and identified with the 
Acarella siro of Cohn, is maintained by Mereschkowsky to be an inter- 
mediate form between the two groups of the Ciliata and Acinetma , and 
is hence assigned to a new section, having the value of an Order, and 
denominated the Suctociliata. To a subglobose or pyriform body, resem- 
bling that of a small Halterina , is superadded a conical neck, perforated 
by the oral aperture. Four short suckers, affirmed to be identical in 
structure with those of an Acineta , are developed upon the margin of 
the neck orifice, with the aid of which the animal affixes itself to 
various objects. The neck, with its accompanying suckers, is capable of 
complete iuvagination ; around the base of the neck, are developed the 
