~ as bilobate may need qualification in view of 
= aks the Eutheria and the others (ee 
x 916 Remarks on Classification of Vertebrata. 
In accordance with the prevailing tendency to utilize the 
skeletal parts for taxonomic purposes, the vertebrates and T 
cates have been called Chordata, and Balanoglossus has tea 
spoken of as a Hemichordate. Balfour regards the notoc 
“the most characteristic organ of the Chordata.” 
In proposing to replace Chordata (a word, by the way, ¢ 
mistaken for the Latin caudata) by Cceloneura, the writer c 
less for the adoption of the term than for the admission that 
parts are not only physiologically but morphologically more 
nificant than hard; that the neuron is more important than $ 
axon; and that the cavity of the one is a more substantial basis 
the primary subdivision of the Metazoa than is the entire 
the other. 
Special Points and Queries—Should it seem desirable to 
arate those Metazoa in which the nervous system is di 
from those in which none has been detected, it would only 
necessary to interpolate between furcas one and two anot 
the two tines of which should stand respectively for sae 
Aneurica, or equivalent terms; the Neurica would then co 
the Cceloneura and the Stereoneura. 
The name Vertebrata is used only as a synonyme; if re 
there should be an understanding as to whether it —_ g 
oe or include that form, or include the Tun 
po the members of the oblique division of the © 
furca the Ganoids and Teleosts should be combined as fishes 
_ Pisces, and distinguished from each other by the persistent 
_ Considerable cavities of the olfactory lobes with all 
Notwithstanding the writer's supposed observation pose 
Proc., 1876, 258), these cavities are absent or insi 
Teleosts examined. i 
The association of the Amphibia with the Dipnoi is be : 
ance with the considerations presented in the writer $ P% 
tie brain of Neoceratodus ; see this journal, June, 1837 
- The characterization of the mesoccelian roof of ei 
tions on the interoptic lobes of some reptiles. 
The primary division of the Mammals Should, p 
ete said for either view, and it is to be 
