medium-sized South-American Felide. 45 
According to Matschie and Thomas, therefore, there are 
two species of cats living side by side in Roca Nova, Parana 
—a larger (/. guttula) and a smaller (Ff. pardinoides) ,—which 
differ in the skull-characters mentioned by Thomas in his 
diagnoses of groups II. and III. 
As stated above, the two skulls which formed the basis of 
this opinion are those of a male and female respectively. An 
examination of them convinces me that the differences they 
present are beyond doubt individual and sexual, and not 
specific. Nor is this conviction shaken by a comparison 
between the skins of the two cats. That of the male shows 
a bold pattern of rather large blackish spots, strong stripes 
on the neck, and well-defined rings at the end of the tail. 
Although the female is black and clearly a melanistic sport, 
the pattern of rings on the tail and of large spots on the sides 
is perceptible and does not differ appreciably from that of the 
male. A second male from the same locality differs a little 
in skull-characters and somewhat markedly in pattern from 
the first, the spots being differentiated into incomplete black 
rings partly surrounding a brownish area. 
Thus it appears that groups II. and III. of Thomas’s 
classification are based upon a single species, Ff. pardinoides, 
Gray, with guttula, Hensel, and guigna, Hensel, as synonyms. 
That &. pardinoides is closely related to geoffroy? does not 
appear to me to be open to question. /. salinarum also 
comes into this category. Moreover, as Thomas has pointed 
out, the skull of 4’, pardinoides shows many resemblances to 
that of #. jaguarondi, thus serving to link the latter with 
F, geoffroyi. Nevertheless, although F. jaguarond: is affili- 
ated to the group of species, or subspecies, exemplified by 
if, pardinoides, guigna, salinarum, and geoffroyi, there is a 
wider interval between it and pardinoides than between the 
latter and geoffroyt. 
' Now, as regards group V.: this was established for the 
reception of a cat from Cayenne which Thomas identified as 
fF, tugrina, Schreber. The skin of this animal is yellowish 
grey in the tint of the ground-colour and decidedly richer in 
tone than skins of F. geoffroyt, salinarum, and pardinoides. 
On each side of the body there are about five longitudinal 
rows of tolerably large, mostly imperfectly ocelliform spots. 
On the neck there are four rather narrow stripes, of which 
the two external pass forwards to the eyes, the median stopping 
short between the ears. The tail is long and boldly patterned 
to the end, and the hairs of the neck are not reversed. 
Of the skull only the facial pait is preserved. It is poorly 
developed from the muscular point of view, but the special 
