1877.] 227 
{Cope. 
It is well distinguished from this form by the structure of the component 
parts of the crown of the last molar tooth, and by its long symphysis, that 
of the 7. mirificus possessing the more usual short spout. It is with the 
L. longirostris, of Eppelsheim and the valley of the Danube, that the 
closest affinity exists. In 7. campester the symphyseal production is much 
more robust, not being separated from the rami by any constriction, as in 
T. longirostris. It is moreover without incisive tusks, but it is yet uncer- 
tain what value should be attached to this character, as it may turn out to 
be individual or sexual. In the intimate structure of the molars there is 
considerable resemblance to the 7’. longirostris ; that species is however 
stated by Dr. Falconer* to possess but five crests and a heel on. the last 
molar. The presence of the enamel band on the tusks also separates the 
T. campester from that species, where, according to Mr. Vacek,t+ it is 
wanting. 
In comparison with M. sivalensis, this Mastodon differs in the transverse 
character of the valleys ; in the Indian species the tubercles alternate and 
close them. 
The dimensions of the 7. campester are those of the African Elephant. 
From the Upper Miocene and Loup Fork horizon of Kansas. 
TAXIDEA SULCATA Sp. nov. 
This badger is represented by the nearly entire maxillary bone of the 
left side containing all the teeth excepting the canine and first premolar. 
It resembles the corresponding portion of the 7. americana very nearly, 
but differs in two important features. The first of these is the abbrevia- 
tion of the anterior portion of the dental series. The first premolar is 
closely wedged in between the canine and second premolar, so that its an- 
terior root is almost obsolete. The head was thus doubtless relatively 
shorter than in the existing species where there are hiatuses between the 
roots of the first premolar and adjacent teeth. The second character is 
seen in the last or true molar. On its crown the tubercles are arranged in 
two well separated transverse rows, forming crests by their confluence, 
which are separated by a deep valley, and bound by a half valley in front 
and rear. 
Measurements. M. 
Length of series, including canine........ Sieve abmwenes 038 
CEA 0) 42) 0 1\0) (:) «: i cc 023 
s  Jast premolar... . 6. cece cece ee eee eee e eee O11 : 
Width of fs OS gegeata Pies powered a s4eRe Tee .009 
Length of last molar (inside)........-.-.-eeeeeeeee eee 012 
Width “ 6 Loada ew ecmenee oben teee gareeebans 010 
From the Pliocene of Washington Terr.; found by Major Truax, U.S.A. 
* On British and European Fossil Mastodons, p. 19 (8 vo.). 
+ Ueber Oesterreichische Mastodonten Wien, 1877, p. 8E (Abh. K. K, Geol, 
Reichanstalt). 
