88 General Notes. [Jan, 
lowing results. - The following species have the otoglossal carti- 
lage essentially like that of A. tenebrosum: A. aterrimum, A. paro- 
ticum, A. decorticatum, and A. microstomum. As the type is so 
entirely different from that of Amblystoma proper, I propose to 
separate these species under the distinct generic name Chondro- 
tus, with C. ¢enebrosus as the type. Examination of the species 
recently described as A. annulatum and A. lepturum,: shows that 
they represent a third genus quite distinct from either of the pre- 
ceding. Here the otoglossal cartilage (Fig. 3) has somewhat the 
form of the basal part of that of Chondrotus, but it is entirely 
free from the basibranchial bone, sliding on it in obedience to 
the contractions of the pubohyal and genioglossal muscles. This 
genus I propose to call Linguelapsus. I know but two species of it, 
According to the figures given by Wiedersheim (/. c.), Hyno- 
bius and Ranidens do not possess an: 6toglossal cartilage, agree- 
ing in this respect with the Plethodontide. Wiedersheim also 
Color of the Eyes as a Sexual Characteristic in Cistudo 
_carolina.—Naturalists interested in our native land-tortoise must 
often have noticed the bright-red eyes in some individuals. I 
have seen them so vivid in color as to attract the attention before 
let” twice, perhaps very bright red would be more correct, 
though I will leave the characters as originally noted. 
Staten Island, July, 1885. Full-grown specimen, male, eyes bright red. 
e ga “ee e ga és * scarlet 
6 
: a T n “ female, eyes reddish brown. 
ee se oe ee és é “ brown. 
g E “ One-fourth grown specimen, female (?), eyes brown. 
“ss Aug., “ — . Full-grown specimen, female, eyes reddish brown. 
- New Jersey, a a a ; is “ male- |“ ; 
‘ os u Y, I 6. "E se female, é dark ; 
Staten Island, elt ang “ ‘e uoa o k EN 
Re Otao x «male, “scarlet. 
have a particular fondness for certain 
Lk on 
| I believe these tortoises 
nd I know of two places where they 
