281—104 INDIAN TERTIARY AND POST-TERTIARY YERTEBRATA. 
In general form this skull is very like tliat of II. crocuta, but is distinguished by 
the more backward prolongation of the occipital crest behind the condyles 
(“ F.A.S.,” pi. K, fig. 16), and the more regular triangle formed by the boundaries 
of the occipital surface : in both of which respects it shows affinity to H. striata. 1 
The cheek-teeth are very much worn, indicating the extreme age of the animal ; 
and have also been much battered about : it appears, however, that there is no 
large anterior talon to pm. 3 , and the crown of the carnassial in relatively low, 
with the inner tubercle proportionately large : this tooth is, however, long in 
proportion to the earlier premolars, and the position of the summit of the middle 
lobe f to ell shown in Mr. Bose’s figurej indicates that the hindmost lobe was relatively 
large, as in If. crocuta. The diminutive size of m. 1 allies the skull more closely 
to the last-named species than to any other ; and taking into account the constancy 
of the size of this tooth in the latter, which according to Professor Busk never 
exceeds 02 or 0-21 in its transverse diameter, it is probable that the minuteness of 
this tooth should be considered characteristic of the fossil. With regard to the 
absence of pm. 1 , which will however, be shown to be present in another specimen, 
it has been mentioned that there is one instance of the absence of this tooth in 
II. eximia, but in that case, the canine is not approximated to pm. 2 , as in the 
specimen under consideration, and it may, therefore, be considered probable that 
the approximation of pm. 2 and the canine is another characteristic of the species 
under consideration. The dimensions of this skull will be given after describing the 
next specimen. 
Dublin cranium. — In the accompanying woodcut ' (fig. 13) two views are given 
of the cranium described by Sir W. E. Baker, already referred to, and now in 
the Museum of Science and Art, Dublin. 2 The specimen is described “ as the 
most perfect fossil we have yet been so fortunate as to meet with. It appears to 
have been enclosed in the stratum with the lower jaw in position but not quite 
closed. The only injuries which it has sustained are the loss of its left zygomatic 
arch, a slight displacement of the [same] half of the lower jaw, of which the 
canine tooth is broken off near its base, and the mutilation of the occiput, which is 
perhaps the greatest loss of all. 
“ The skull must have belonged to a full-sized animal, as some of the molars 
are worn flat on the tops ; it is smaller than Cuviers’ fossil Hysena [11. crocuta], and 
somewhat different, though having a much near resemblance to it than to the 
existing hysena of the country \_II. striata].” Since this description was written 
the specimen has suffered the loss of the right zygoma, and of the left upper 
carnassial ; but it is otherwise in very good preservation, and, with the above- 
mentioned exceptions, exhibits the whole of the dentition, although only the outer 
surface of most of the teeth are visible, and m. 1 is totally concealed. In the 
1 See Busk. “ Zool.' Trans.” op. ci/., p. 7S. 
2 This was one of the specimens purchased hy the Museum from Dr. Beatty ; it is numbered, 42. 
