80 
Journal of the Mitchell Society. [ June 
sexual, the small headed ones being males,* the large headed 
ones females. Young specimens are nearly circular with a 
distinct dorsal keel, as in all young Pseudemys, but a speci- 
men 130 mm. long has substantially the form of the adult. 
Some measurements of specimens from Neuse River near 
Raleigh are as follows: 
Taken. 
Greatest Length. 
Width. 
Height. 
1 . 
Feb. 26, 
1902, 
sex? 
131 
107 
55 
2. 
April 23, 
1906, 
male 
150 
114 
54 
3. 
March 29, 
1904, 
female 
161 
— 
— 
4. 
July 27, 
1903, 
sex? 
202 
139 
— 
5. 
March 24, 
1903, 
male 
211 
150 
82 
6 . 
March 29, 
1904, 
female 
240 
158 
— 
7. 
June 2, 
1905, 
sex? 
240 
172 
80 
8. 
March, 24, 
1903, 
female 
275 
185 
110 
9. 
March 16, 
1902, 
sex? 
280 
195 
107 
Of what Baur called mobiliensis, I have had one adult and 
several smaller specimens from Baker County, in Southwest 
Georgia, but while the adult has an arched shell and is a 
little larger (290 mm. long) than the largest I have meas- 
ured from Raleigh, its shell is not more arched than those of 
some Raleign specimens, nor is the head larger than in some 
of them. In coloration it is identical with Raleigh speci- 
mens, as are also the young ones, except that none of them 
have any vertical yellow bars and concentrix markings on the 
marginals replaced by longitudinal yellow lines. I am inclined 
to consider this form as merely, at the most, a large south- 
ern form of concinna. 
Of jloridana I have had three good sized adults from John- 
ston County, N. C., and quite a number of small and half 
grown specimens from Southwestern Georgia, and Florida. 
These differ from concinna in usually having a vertical yellow 
* See also “Some observations on the turtles of the genus Malademmys” 
by O. H. Hay, (Proc. U. S. N. M., Yol. XV, No. 908) in which he states 
that the females of this genus have larger heads than the males. 
