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peculiarity of Manculus, however, is a character expressed in Fig. 7, 
which relates to the pharynx. Immediately anterior to the muscles 
above described, there extends along the roof of the mouth a secon- 
dary pharyngeal cavity, flattened from above down- 
wards and ending blindly posteriorly. It shows in the 
series as a Separate cavity for the space of about ten sections, anterior 
to which it gradually opens into the main cavity. 
This readily admit of interpretation as an attempt to increase 
the pharyngeal surface for respiration, but why this rather 
small species out of all the lungless forms, should have developed 
such a formation is not clear. 
Anaides, 
Of this genus I have obtained a single badly-preserved specimen, 
A. lugubris. It shows no trace of lungs and no orifice for a glottis. 
Desmognathus. 
For this I can refer to my former paper, |. c., with the correc- 
tion referred to above. At the time I first wrote, I was in doubt 
concerning the homology of the muscles. but from the figures and de- 
scription it would seem to correspond closely to Spelerpes and Man- 
culus, rather than to Plethodon. 
I have recently received a specimen of Desmognathus brimleyorum 
from Arkansas which may be added to the lungless species already 
described. 
Summary. 
As a result of all investigations upon the subject up to the 
present, the following list of lungless Salamanders can 
be presented. ay 
Family: Salamandridae. 
Sub-Family : Salamandrinae 
Salamandrina perspicillata (CAMERANO) 
Sub-Family: Plethodontinae 
Plethodon cinereus 
Plethodon erythronotus 
Plethodon glutinosus 
Spelerpes porphyriticus 
Spelerpes fuscus (CAMERANO) 
Spelerpes bilineatus 
Spelerpes ruber 
Batrachoseps attenuatus | 
Manculus quadridigitatus A, 
Aeneides lugubris 
