150 FLORIDA GEOLOGICAL SURVEY-EIGHTH ANNUAL REPORT. 
distinct from'the deer which is so abundant in the next succeeding 
horizon (No. 3). The scapula of the deer found in stratum No. 2 
is larger and the corocoid process is broader than is that of the 
deer in the succeeding horizon. 
BISON. 
An extinct bison is represented in the collection by a number of 
teeth, the distal end of a humerus, and some foot bones. While 
none of these bones have been found in place the species is probably 
to be referred to stratum No. 2. 
• ELEPHAS. 
PI. 25, fig. 1. 
The Columbian elephant, E. columbi, is one of the very abund¬ 
ant fossils of stratum No. 2. The skeleton is usually disassociated 
and the bones are frequently broken or imperfectly preserved, al¬ 
though a few complete teeth and limb bones have been found. The 
plates of the teeth of this elephant are apparently somewhat coarser 
than are those typical of the Columbian elephant as known else¬ 
where, there being only about five plates per 100 mm. In this re¬ 
spect the teeth resemble those of the Imperial elephant, Elephas im- 
peraior. 
mammut. 
Pi. 31. 
The American mastodon, Mammut americanum, is abundant 
in this deposit. The collections include of this species a lower jaw, 
parts of the skull, molar teeth, and left half of the atlas. The con¬ 
dition of preservation of the mastodon remains is similar to that 
of the elephant. The skeleton is usually scattered, although oc¬ 
casionally complete teeth and bones are found. 
NEOTOMA. 
The genus, Neotoma, is represented by a lower jaw, in which 
unfortunately the teeth are lacking, obtained from stratum No. 3. 
NEO FIBER. 
PI. 29, fig. 7. 
The Florida water-rat, Neofiber alleni , is represented in stra¬ 
tum No. 2 by several detached teeth, and in stratum No. 3 by a 
number of lower jaws and parts of skulls. 
