.
'ULeivLontblyMicr oscopic alJo-qrnalD eoll8 71
PI
.
CV".
ITTTg.
ITeYrTriTUij oraa>
—
—
THE
MONTHLY MICROSCOPICAL JOURNAL.
DECEMBER
Notes
I.
on Prof. James
New
description of
1,
Claries
Species.
1871.
FlageUate Infusoria,
By W.
with
Saville Kent, F.Z.S.,
F.R.M.S., British Museum.
{Read
The
lefore the
Royal Microscopical Society, Nov.
1,
1871.)
a brief sjmopsis of certain genera and species of
Flagellate Infusoria described by Professor James Clark, of Pennsylvania, U.S., in the
Memoirs of the Boston Society of Natm-al
History,' vol. i., 1866,* with the diagnostic characters of new
following
is
'
and those of other previously-described ones
species interpolated
EXPLANATION OF PLATE
Fig.
echi'mda,
„
2.
„
3.
„
4.
„
5.
„
6.
„
7.
„
„
„
CV.
—A colony of Codosiga
magnified 500 diameters.
—A single zooid, detached, magnified 1500 diameters.
—A colony of Codosiga umbeUata, magnified 400 diameters.
—A detached
magnified 800 diameters.
exhibiting a
ramifica—Another colony of the same
tion of the supporting pedicle, magnified 75 diameters.
—A colony of Codosiga pulcherrima, magnified 500 diameters.
—Another colony of the same species consisting of only two individuals.
1.
zooid,
bi-tripartite
species,
Salpingccca marina (after Jas. Clk.).
Salpingceca gracilis (after Jas. Clk.).
Two solitary and shorter individuals of the
10, 11.
8.
9.
—
same
species as observed
by the author, magnified 1200 diameters.
„ 12.
—A colony of
shorter individuals, in which the elongate, hollow
peduncle
entirely suppressed. Magnified 1200 diameters.
—A variety of Salpingceca amphoridium, attached by a short pedicle, and in
still
is
„
13.
marina. Magnified
this character approaching the stalked species
1200 diameters.
ordinary sessile individual of the same species, magnified 1200
^S".
^n
„ 14.—
„
„
|r<.iiameters.
15.—JPwo zooids of BicoscBca lacustris in the condition of full extension, magnified 1200 diameters.
16.
single individual of the same species, further enlarged, witli the zooid
retracted within its lorica, and exhibiting the spiral manner in which
—A
the fiagellum
is
then disposed.
„ 20.
—Two zcoids of
magnified 800 diameters.
magnified 600 diameters.
—Two compound colonies of Anthopjhysa
magnified 400 diameters.
of
—Two zooids of the same
derived from the longitudinal
21.
a single individual, and still connected with one another at their base.
Magnified 1500 diameters.
A compound colony of Anthophysa laxa, magnified 900 diameters.
„
„
„
„
17.
18.
19.
Bicosceca socialis,
Bicosaeca inclinata,
solitaria,
fission
species,
—
* Reprinted in
tlie
'Annals and Mngazine of Natural History,' 4th
ser., vol. i.,
1868.
VOL,
VI.
U
;
262
Transactions of the
amended in accordance with the author's personal experience.
Without exception the material furnishing these descriptions was
obtained from a pond of moderate dimensions on the estate of
Thomas Kandle Bennett, Esq., of Wentworth House, Stoke
Newington.
CODOSIGA,
Jas. Clark (revised).
Bodies of animalcules ovate, one or a number seated at the termination of a fixed, slender, unretractile, simple or branching pedicle
the anterior and distal portion bearing a membranous, infundibular,
retractile collar
;
the single attenuate, flexible flagellum originating
Contractile
it circumscribes.
from the centre of the area which
vesicles conspicuous,
one or more in number.
Increasing by longi-
tudinal fission.
Codosiga ])uhherrima, Jas. Clk. (revised), PI. CV., Figs.
6, 7.
Animalcules from one to as many as eight or nine in number,
attached to the primary pedicle through the medium of very short
secondary ones; surface of the body smooth, length of the same,
exclusive of the collar, ^ho J^am. (2 sVtf Eng. inch), breadth -^wu '^'^- 5
length of the primary pedicle, four or more times that of the body,
Contractile vesicles
of the secondary ones about half its diameter.
conspicuous, two or more in number.
Hab. Fresh water, attached to Myriopliyllum and Conferva.
Pennsylvania, U.S., Jas. Clark.
Stoke Newington, London,
W.
S.
K.
Codosiga echinata,
n. sp., PI.
CV., Figs.
1, 2.
Similar to C. imlcherrima, but the individual animalcules having
the surface of their body beneath the collar beset with verticels of
Length of the body t^tj- mm.,
evenly-disposed sty late processes.
breadth
-^ mm.
Hab. Fresh water, on Myriophyllum and Conferva.
Newington, London, W. S. K.
Codosiga unibellata,
n. sp., PI.
CV., Figs.
Stoke
3, 4, 5.
Bodies of animalcules similar in structure to those of C. pulcherrimus, but of double the length (^^^j mm.) and more elongate
outline, seated in groups at the terminations of a rigid tripartite,
bi-tripartite, or occasionally quadri-partite, branching pedicle.
Stoke
Hab. Fresh water, on Myriophyllum and Conferva.
Newington, London, W. S. K.
SALPING^CA,
Jas. Clk. (revised).
Animalcules inhabiting a transparent lorica or sheath, the anterior portion of the body provided with a membranous retractile
;
Royal Microscopical
collar
and bearing a single attenuate
attached, sessile or pedunculate.
263
Society.
flexible flagellum.
Lorica
Contractile vesicles conspicuous,
one or more in number.
Saljpinffseca gracilis, Jas. Clk. (revised), PI.
CV.,
Figs. 9, 10, 11, 12.
Lorica cylindrical, solitary or in groups
;
expanding anteriorly,
attenuate, in the form of an elongate hollow peduncle, or abruptly
truncate posteriorly.
Bodies of animalcules cylindrical, rounded at
the two extremities. Average length of lorica ^V to ^V mm., breadth
xso mm., animalcules occupying one- third to one-half the length of
its
internal cavity.
Hab. Fresh water.
Stoke
Pennsylvania, U.S., Jas. Clk.
ington, London, on Conferva,
W.
S.
New-
K.
Salpingssca ampJioridium, Jas. Clk. (revised), PI. CV.,
Figs. 13, 14.
Lorica flask-shaped, having an inflated posterior portion and an
attenuate narrow neck, sessile, or attached by a short pedicle. Body of
irregular form, adapting itself to the outline of the lorica. Length
of the lorica y^-o nim., breadth of the expanded base ^^o t^^Hab. Fresh water, attached to Conferva. Pennsylvania, U.S.,
Stoke Newington, Loudon, W. S. K.
Jas. Clk.
BICOS^CA,
Body
Jas. Clk. (revised).
enclosed within an ovate
membranous
lorica or sheath,
which it is attached through the medium of a contractile ligament; no collar; one or two flagelliform appendages
originating from the anterior extremity.
Lorica usually peduncuContractile vesicles one or more in number.
late.
to the bottom of
Bicosaica lacusiris, Jas. Clk, (revised), PI. CV., Figs. 15, 16.
Lorica elongate oval, narrowing at the anterior extremity, attached by a short pedicle.
Body rounded posteriorly, rostrate
anteriorly and bearing a single flagellum originating excentrically,
curved and rigid in extension and a shorter stylate appendage.
Length of lorica t^o mm., breadth ^io i^m. ; body occupying onethird to two-thirds of its internal cavity.
Contractile vesicles two
in number.
Hab. Fresh water, on Conferva. Pennsylvania, U.S., Jas. Clk.
Stoke Newington, London, W. S. K.
Bicoseeca socialis, n.
sp., PI.
CV., Fig. 17.
Lorica elongate oval, half as long again as that of B. lacusiris
pedicle not exceeding one-third or half its length.
Body rounded
u 2
264
Transactions of the
posteriorly, pointed anteriorly, not rostrate, and bearing two flexible
attenuate vibratile flagella.
Length of lorica ^V mm., diameter
T^TT mm. ; body occupying about one-half of its internal cavity.
Hab. Fresh water, attached to Conferva.
London, W. S. K.
Stoke Newington,
Bicos8sca inelinata, n. sp., PI. CV., Fig. 18.
Lorica ovate, set obHquely on a slender pedicle of twice its
length.
Body occupying two-thirds of the cavity of the lorica,
flagellum single.
Length of lorica ^V mm., greatest diameter
rU mm.
Hab. Fresh water, attached
London, W. S. K.
to Conferva.
ANTHOPHYSA,
Stoke Newington,
Duj. (revised).
Animalcules pyriform, obliquely truncate anteriorly and furnished with two flagelliform appendages, attached singly or in
Increasing
clusters to a simple or branching uncontractile stem.
by longitudinal
fission.
Anihophysa
solitaria,
Bory, PI. CV., Figs. 19, 20.
Animalcules grouped in a cluster of forty or fifty at the extremity of a simple flexible thread-hke stalk. Length of bodies
j^ mm.
European Continent,
Hab. Fresh water, on Conferva, <Src.
Bory and Tresenius. Stoke Newington, London, W. S. K.
Anihojpliysa laxa, n.
sp.,
PI. CV., Fig. 21.
Animalcules disposed singly, excepting during fission, at the
extremities of a loosely and irregularly branching flexible stalk.
Length of bodies -ys^ mm.
Hab. Fresh water, on Conferva.
W.
S.
Stoke Newington, London,
K.
Anthophysa Bennettii,
n. sp.
Animalcules stationed singly or in pairs (during fission) at the
extremities of a slender, rigid, and repeatedly dichotomously dividing
Length of bodies -^^ mm., of the branching stalk 1 mm.
stalk.
and upwards.
Hab. Fresh water, attached to Conferva. Stoke Newington,
London, W. S. K.
Monas
termo, Ehr.
Having encountered the attached form
by Prof, James Clark, I difier from him
referred to this species
in his
assumption that
Royal Microscopical
Society.
265
the animalcule possesses a distinct mouth, having on many occasions
observed it to take in food on the lateral as well as the anterior
surface of its body, it investing and engulphing its prey with an
expansion of its protoplasm after the manner of Amoeba. On
numerous occasions I have
also certified the presence of
two instead
of only a single flageUiform appendage.
Addenda.
In Anthophysa the interception of food is similar to that of
In Codosiga and Salpingseca it takes place anywhere
Monas.
within the area circumscribed by the membranous collar, the discharge of foecal matter being efiected within the same Kmits.