LypEKKER—On Siwalik Fossils in the Science and Art Museum, Dublin. 73 
Calcutta, figured in plate xxxv., figure 2 of the same volume. In that figure the 
hinder cheek-teeth of the left side are restored from those of the opposite side. 
C. 39. Hymna convint, Lyd.—Left ramus of the mandible, not improbably 
belonging to the same individual as the last This specimen is alluded to on page 
295 of the above-mentioned volume; and its hinder cheek-teeth are similar to 
those of the specimen represented in the woodcut on the opposite page of the same 
work. This species is in many respects allied to the preceding form, but is 
distinguished by its taller and more slender cheek-teeth, and by the generally 
larger size of the tubercular molar. It appears entirely to do away with the 
generic distinctness of Crocuta, since while its premolars and lower carnassial are of 
the type of the spotted hyzena (although pm. 4 indicates a tendency to a transition 
from the crocutine to the striatine type), its upper true molar, in its different 
variations, forms an almost complete transition from that of the striped to that of 
the spotted species, though generally of the type of the latter. 
C. 40. Hyana, sp. non det.—Part of right ramus of mandible. It is possible 
that this specimen may belong to the same species as a specifically undetermined 
maxilla represented in plate xxxy. A of the above-mentioned volume, and described 
on page 309. 
Family 1V.—FPelide. 
C. 47-8. Frxis suBHIMALAYANA, Bronn.—Cranium, mandible, and bones of hind - 
limb. These specimens are unique, and are figured in “Journ. Asiat. Soc., 
Bengal,” vol. v., pl. xxvii., figs. 1, 2, and described on pages 330—1 of the above- 
quoted volume of the ‘“‘ Pal. Ind.” They indicate an animal of about the size 
of the existing Indian F. bengalensis, but of stouter build. 
©. 49. Macuaropus stvacensis (Fale. and Caut.).—Left ramus of mandible of 
male. This specimen, which is figured in the accompanying woodcut (figure 4) 
(reproduced from p. 836 of the above-mentioned pm. 8. pm. 4. m. 1. 
volume of the “Pal. Ind.”), is the most perfect th peal 
known specimen of the mandible of this species. 
Macherodus sivalensis is a species coming nearer 
in its main cranial characters to the American 
M. neogeus, and M. necator, than to the European 
M. meganthereon, and (probably) M. cultridens. Vt pig 4. aracherodus sivalensis (Fale. and Caut,). 
apparently agrees with the two former in its Outer view of left ramus of mandible of a male. 
relatively large canines; while in dental characters it presents a strong general 
resemblance to M@. necator, although lacking the suppression of pm. 3; and in the 
structure of pm. 3 agreeing with M. meganthereon. In the small size of m.1 the 
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Siwalik species again comes nearest to WM. necator. In the variation in size of 
pm. 3, and in the tendency to the disappearance of the second fang of this tooth, 
the species is evidently intermediate between the European and the American forms. 
