
1891] Zoology. 101g 
the vomerine teeth more anteriorly placed, and there are no dermal 
folds. In coloration there is no resemblance to any other species. 
I obtained five adult and two half-grown individuals, and had two 
other adults almost within my grasp, but they escaped me. The 
specimens agree nearly in size, the chief differences being observed in 
the amount of dark blotching of the belly and the regularity of the 
markings on the inferior side of the femur. The specimens were 
found in a cut-off of a tributary of the Great Egg Harbor, River in 
Atlantic county, New Jersey. The water is stagnant, and is well 
grown with Nymphezas, Utricularia, and Sphagnum. The frogs did 
not display any considerable powers of leaping or swimming, but con- 
cealed themselves with much ease within the aquatic vegetation. I 
did not observe any voice. In the same locality I observed the Rane 
virescens and clamata. The cut-off is in the woods, and I found no 
individuals in similar situations in the open country, nor any along 
running water in the woods 
The oversight of this conspicuous species is a curious circumstance. 
2E. D. Cope. 
Zoological Notes.— General. — Dr. A. Voeltzkow has been 
giving ê a general résumé of fresh-water fauna of Madagascar. The 
present paper gives promise of many interesting facts when the com- 
pleted paper appears, both of new forms and of geographical relation- 
ships. Frenzel describes,” without naming, an interesting infusore 
from a salt-water aquarium in Argentina. It is saccular, pointed at 
either end, and depressed so that it may be called bilateral, the ventral 
surface being flattened, the back rounded. The lower surface is ciliated, 
the dorsal with a few short bristles. In front is a mouth, posteriorly an 
anus, the mouth being surrounded by strong cirri. The wall of this 
os eign is composed of a single layer of cubical cells, bounding the 
‘alimentary canal.’’ Reproduction takes place in two ways: (1) by 
transverse fission, and (2) by conjugation and subsequent encystment. 
Two individuals oppose the ventral surfaces, and contract into a sphere 
which secretes a cyst. The internal processes were not clearly 
observed ; it appears that the alimentary lumen is filled by cell division, 
so that the whole cyst is filled with similar cells, each of which is to be 
regarded as a spore which, after liberation, swims about as a ciliate, and 
by cell division develops directly into the adult. No hints are given 
as to the relationships of this form.——Mr. F. A. Lucas describes ê 

* Proc, U. S. Nat. Mus., XIV. 2: 169, 1891 


