Mr. O. Thomas on Neotropical Mammals. 235 
In addition the small-spotted F. Geoffroyd, with its little 
ally F. salinarum, sp. n., makes yet a fourth Neotropical 
section of the group; while a fifth appears to be formed by 
the true /. tigrina*, judging by a small cat from Cayenne 
which may be assigned to that species, and is distinguished 
by its small size, bright colouring, and delicate skull; but 
it is in too imperfect a state for me to describe it more fully. 
Felis glaucula, sp. n. 
The Mexican representative of Group I. General charac- 
ters as above described. Colour grey instead of fulvous or 
tawny. 
Size about as in /. Wedd. Fur fine and soft, rather 
short; hairs of back (April and May specimens) about 
17 to 18 millim. Fur of nape reversed forwards, in some 
cases from behind the withers on to the crown. General 
ground-colour pale drab-grey, very different to the strong 
tawny of the South-American members of the group. Linear 
markings narrow, and on the sides enclosing elongate spaces 
so as to recall the pattern found in the ocelots. Lower cheek- 
line less developed than usual. Nape with two strongly 
defined and two less defined lines outside them, but all are 
very narrow, and in some cases, as in the type, the central 
pair are themselves longitudinally split by a pale line. 
Black markings of posterior back forming a double series of 
broken lines one to three inches in length on each side of the 
pale middle line. lLiaterally the markings take the form of 
rosettes, rounded on the shoulders and hips, obliquely elon- 
gate on the flanks; the bordering lines of these markings are 
deep black, sharply defined, and rarely more than about + inch 
in diameter. Central space of rosettes also grey, slightly 
darker than the general ground-colour. Under surface white, 
a prominent black line across below jaw, another less promi- 
nent across chest (in the type this latter is replaced by two 
lines of spots), and a number of round black spots on belly. 
Limbs buffy grey on outer, white on inner aspect, the spots 
continued down to the proximal part of the hands and feet. 
Tail marked with 11 or 12 black and buffy-white rings, the 
dark and the light about equally broad. 
Skull in general shape like that of F. Wiedii, but more 
heavily ridged. Brain-case smaller, narrower, more con- 
stricted behind the postorbital processes, and more parallel- 
* Schr, Siug. pl. evi. (1775). The publication of this plate antedates 
that of the text, and as it is a copy of Buffon’s plate, the animal figured 
by the latter—which is from Cayenne—may be taken as its type. 
