830 General Notes. [August, 
time. When the circular outline of one is distinctly visible, the 
pulsations only of the other 
lar, giving an amplification 
of nearly a thousand diam- 
eters, the systole of each 
can be seen alternately by 
manipulating the fine 
justment screw during the 
diastole, or vice versa. 
The cuticular elevations 
are arranged in a series on 
the margin of the peristome 
border, but the nuclear 
bodies are there small 
frequently obscure or ab- 
sent. The prominences 
vary much in size even 
where most abundant. In 
contour they are §' 
A X 400 
Fic, 1.— Vorticella lockwoodii, sp. nov. FIG. .: ine is 
2,—Cuticular elevations much sokarped sionally their outl ure 
ovate, the two forms oce 
hemispherical, but occa- 
ing on the same individual. The shape of the enclosed nuciels — 
is uniformly the same in both, being that of a small ci 
but that these internal bodies are disciform and not 
have not been able to positively determine. They are, 
probably spherical. i ; 
_ The anterior and posterior regions of the body are, 1n ig 
individuals, almost naked, while the cuticular promin 
spherical, 
usually more numerous centrally, with a tendency to €o he ole 
a more or less conspicuous equatorial zone. Some of the, 
however, : 
ect into 
stituents of this belt, with their apparently disc-shaped nuclei, a? | 
shown greatly enlarged in Fig. 2. mem 
t affords me much pleasure to dedicate this peer PhD, 
ber of a remarkable genus to the Rev. Samuel Lockwoo#, 
an illustrious naturalist by whose friendship 
Alfred C. Stokes, M.D. 
T aat honot — 
of the 
PECIES OF ĪNFUsORIAN.—[In the Proceedings occur 
