834 KANSAS UNIVERSITY SCIENCE BULLETIN. 
pond on Mount Constitution, on Orcas Island, Puget Sound, 
Washington. 
The similarity of intestinal structure is of considerable im- 
portance to our understanding of the relationship existing 
between the Carboniferous Branchiosauria and the modern 
Caudata. This fact only confirms other arguments, offered 
in another place, concerning their immediate relationship. 
(American Naturalist, vol. xliv, June, 1910.) 
The branchiosaurian affinities of the present species are 
almost too evident to need discussion. The entire structure 
is essentially similar to that of other genera of the order. 
MEASUREMENTS OF EUMICRERPETON PARVUM MOopig. 
Specimen No. 803, (222) Yale University Museum. 
mm. 
Mengtheofeanimalern. a ccteracve ae steerer oe 37.5 
Lengths ofiskulllia:)..- tis. Sih aios deere eee eae 4.5 
Posterior width of skull at table.............. 6 
Ihoneuidiametersolveye nics crsjesieio eee eee eee al fs) 
Transverse diameter of the eye...............-. 65 
lengthwofolertshumerusS. acy oe eee 125 
henge thwoteremun: secre ss Geis ee ot eee oe 1.75 
Width across base of tail impression.........:. 3.5 
Wengthy of tailfrom jbase toi ytips 2! te... oe 17 
Number of ventral armature rods in 1 mm..... 10 
Measurements of second specimen, No. 802, (471) Yale University 
Museum. 
mm 
ength ot animalltvan sciences ieee 30 
mengtheof skullysayoncn saints steiner s Conia ee 4 
Posterior widbh (of skullt see. see eee ents oe 5 
length oficesophaguse. sacarieicscmicw see cites 3:5 
Gengthiofsstomachty- -y-tearn-tartet tence oe 6 
Wiidtheofgstomachy sacs prsoetcicereoiien eee ecks 1.33 
Estimated length of intestine.................. 18 
Width across base of tail impression........... 2.5 
ihengthiofatailtfrom' baseitotipencceiecneceeeeee 7 
Eumicrerpeton parvum Moodie (an additional specimen). 
(Plate 5, fig. 1.) 
After the above had been written the writer received from 
Mr. C. W. Gilmore, of the U. S. National Museum, an addi- 
tional specimen of this species. It is No. 4400 of the U. S. 
National Museum. The additional specimen serves to sub- 
stantiate the above-described genus and species, and shows 
