Pid *% 
PROCEEDINGS 
OF THE 
CALIFORNIA ACADEMY OF SCIENCES 
FouRTH SERIES 
VoL. III, pp. 183-186 May 3, 1912 
DESCRIPTION OF A NEW GENUS AND SPECIES OF 
SALAMANDER FROM JAPAN 
BY SURGEON J. C. THOMPSON, U. S. NAVY 
PLATE XIV 
The California Academy of Sciences has received from the 
Far East a tailed batrachian belonging to the subfamily of 
Amblystomatinz. It is intermediate between the groups com- 
posed of Hynobius Tschudi and Salamandrella Dybowski on 
the one hand and of Onychodactylus Tschudi and Geomolge 
Boulenger on the other. 
The larvz possess stout claws, which is also the condition 
found in the young of Geomolge. The development of the 
dermal covering of the palms and soles is unique among sala- 
manders. 
Pachypalaminus new genus 
Type.—Pachypalaminus boulengeri, No. 33192 California Academy of 
Sciences. 
Generic Characters.—Tongue large, with longitudinal plicze and sulci 
and with anterior and lateral borders free. Series of palatine teeth inter- 
rupted, forming a pair of salient angles, with mesial sides the longer. 
Palms, soles, and inferior surface and tips of fingers and toes covered with 
a tough brown corneous modification of the epidermis. Toes five. Tail 
compressed at the base, deepened and strongly compressed posteriorly. 
The following species is dedicated to Mr. G. A. Boulenger, 
F.R.S., V. P. Z. S., as a slight token of the appreciation felt 
for assistance rendered me when a student in London. 
May 3, 1912 
