QFATERNAEY FAUNA OP GIBALTAE. 75 



IV. Ht^NA. 



The principal specimen belonging to the Hymna yielded by the Genista cave is a fine 

 cranium, in several pieces, but which, when placed together, constitute two portions, 

 which respectively comprise the facial and occipital regions (Plates I. and II.), the 

 intermediate connecting part having been broken or lost in the extraction from the hard 

 matrix. 



The facial segment presents half of the right orbit, part of the zygomatic arch, and 

 the whole of the maxillary of the same side, together with all the molars in situ, 

 with the exception of the small tubercular. It shows also part of the alveolus of the 

 canine, the incisive border being wanting. On the left side only a small part of the 

 maxillary is left, containing the three anterior premolars. The palate connects the 

 two lines of teeth, and is complete on the right side almost to the extreme posterior 

 verge, exhibiting the large digital fossa within the carnassial, and an indistinct Indica- 

 tion of the alveolus of the apparently uniradicular molar. 



The posterior portion of the cranium includes the whole of the occipital region, 

 a part of both parietals, and the greater part of both temporals, with the auditory 

 foramina and bullae, together with the glenoid fossae and occipital condyles, which are 

 quite perfect. The right glenoid fossa is in a diseased condition; and what remains 

 of the temporal zygomatic process appears to indicate that that process had been dis- 

 eased, or perhaps the seat of an old ununited fracture. The sagittal crest is wanting ; 

 but the occipital area and spine are tolerably entire (fig. 4). The teeth are all much 

 worn ; and the general condition of the bones is also such as to prove that the animal 

 was aged. 



The specimen was found at a depth of 36 feet, in the upper chamber of the Genista 

 Cave ; but it is thoroughly fossilized, dense, and heavy. The cerebral cavity and all 

 the hoUows are occupied by a thick deposit of ochreous stalagmite, in a mass of which 

 the whole was imbedded. 



In the subjoined Table wiU be found the principal dimensions that the condition of 

 the specimen will allow to be taken, contrasted with those obtained in H. spelwa (one 

 example), H. crocutafera (mean), H. brunnea (mean), H. striata (mean) : — 



