98 FLORIDA GEOLOGICAL SURVEY-EIGHTH ANNUAL REPORT. 
the smallest. The presence of the three species of hipparions in the 
Dunnellon and Bone Valley formations is one of the strong argu¬ 
ments for the essential contemporaneity of these two formations. 
URSIDAE. 
AGRIOTHERIUM SCHNEIDERI, SP. NOV. 
Plate 12, figs. 1-2. 
A new carnivore is represented in the Survey collection by a 
right lower jaw from the Bone Valley formation at Brewster. The 
specimen was obtained and presented to the State Geological Sur¬ 
vey by Mr. Anton Schneider, Superintendent of the Amalgamated 
Phosphate Company. For this species the writer suggests the name 
Agriotherium schncidcri in recognition of the attention that is being 
given by Mr. Schneider and those, working under his direction to 
the preservation of the very important series of fossils tjiat is be¬ 
ing obtained in connection with mining phosphate rock. The type 
specimen is No. 6856 of the Geological Survey collection. 
The genus, Agriotherium Wagner, is based on Ursws sivalensis 
and was described by Wagner in 1837.* Subsequently the generic 
term Hyacnarctosy was assigned to the same species, under which 
name the fossils are more commonly known in literature. The 
genus has not heretofore been definitely recognized in America, al¬ 
though Freudenberg has referred to it provisionally a sectorial 
tooth from the Pleistocene of Mexico.t In Europe the genus is 
found in the upper Miocene and the Pliocene. Among the species 
referred to Agriotherium (Hyacnarctos ) according to Lydekker 
are H. insignis, lower Pliocene of Montpellier; an undetermined 
species from the upper Miocene of Spain; and H. sivalensis from 
the old Pliocene of England (Red Crag).yf The Asiatic species 
of the genus are from the Sind, Punjab and. Sub-Himalayan Si- 
waliks (Miocene and Pliocene). The reference of the Florida 
specimen to this genus is necessarily provisional. When more 
*Munchn. gelerten Anzeigen, 1837. According to Lydekker, from whom this 
foot note reference is taken, the species JJrsus siz’alensis was described by hal- 
coner and Cautley in the “Asiatic Researches” in 1836. According to the same 
writer, Blainville in 1841 proposed for the species the generic names Sivalarctos 
(Compt. Rend., p. 165), and Amphiarctos (Osteographie, Vol. ii, pp. 96-103. 
Among these several terms Agriotherium has priority. 
tOwen, Odontography, p. 505, 1840-1845. 
fDie Saugetierfauna des Pliocans und Post Pliocans von Mexiko. 1. Carni¬ 
vora, by Wilhelm Freudenberg. Geol. u. Palaeo. Abh., N. F., Bd. 9, Heft 3, 
pp. 13-17, 1910. 
•ttlndian Tertiary and Post-tertiary Vertebrata. Vol. ii, p. 220, 1884. 
