64 FLORIDA GEOLOGICAL SURVEY-EIGHTH ANNUAL REPORT. 
differs from the other specimens in having the surfaces more un¬ 
even. 
Another fragment, No. 7082, of those referred to this species, 
shows the sutures between the bones. Between the last neural and 
the suprapygal the eighth costals join for a space of 9 mm. The 
furrow between the fourth and the fifth costals crosses the last 
neural. The suprapygal is 19 mm. wide; the pygal 16 mm. wide. 
In none of the specimens referred to this species does the tenth 
marginal come at all near the fifth vertebral scute, a character 
which differentiates the species from Cope's T. eurypygia. 
No. 5471 of the collection (pi. 6, fig. 3) is an anterior lobe 
of the plastron. Its size, shape, and thickness suggest that it be¬ 
longed to T. irmoxia. It presents no characters by which it may 
be distinguished from the same part in T. major. No. 7085 (pi. 
6, fig. 4) is the left xiphiplastral bone. It is 41.5 mm. long on 
the median suture and 34.5 mm. wide on the hypo-xiphiplastral 
suture. The anal scute extends forward nearly to the suture last 
mentioned. The horn-covered surface on the outer border of the 
upper surface is flat and 9 111m. wide. 
PSEUDEMYS CAELATA HAY. 
Plate 2, figs. 1-7. 
In the Fossil Turtles of North America, page 356, plate LVII, 
the writer described the species named above. The specimens are 
in the National Museum and were found somewhere in Levy 
county, Florida. The parts figured are the nuchal (made the type 
of the species), the first left costal, the fifth left costal, the seventh 
right (wrongly called the left third) and tenth peripherals, and the 
left hypoplastron. 
In the collection of the Florida Geological Survey are several 
fragments of the same species. These also were found in Levy 
county, at what is called the Mixon locality, two miles northeast 
of Williston, the type locality of the Alachua formation. The 
parts present are the left epiplastron (3537) ; a part of the right 
hvoplastron (3420) ; a part of the right hypoplastron (3418) ; and 
a part of the left (3427) ; a fourth neural (3425), a part of the 
right fifth costal (3421); the right first peripheral (3415); two 
left second peripherals (3423, 3426) ; the right third peripheral 
(3410) ; a right and a left ninth peripheral (3416, 3417). These 
bones certainly do not all belong- to the same individual. No two 
