556 



OSSIFEEOUS CAVES OF GIBRALTAR. 



Bos. A large form, equalling the Aurochs in size ; re- 

 mains few and imperfect ; species undetermined. 



Bos taurus. Abundant in the upper chamber. 



Capra hircus (?) . In the upper chamber. 



Capra iEgoceros, form A. ; Capra iEgoceros, form B. 

 Two forms of Ibex, probably extinct, but in vast abund- 

 ance throughout the fissure. 1 



Rodents. 



Lepus timidus. Rare. 



Lepus cuniculus. Very abundant at all depths. 



Mus rattus. 



Carnivora. 



Felis Leopardus. 



Felis pardina. 



Felis serval. 



Hysena brunnea. 2 



Canis vulpes. 



Ursus, sp. Not the Cave Bear ; form undetermined. 



Delphinidce. 



Phocsena communis. 



Birds. Remains numerous ; genera and species undeter- 

 mined. 



Tortoise. Bare ; species undetermined. 



Fish. Remains numerous in the upper chamber. 



1 Extract of Letters from Dr. Falconer 

 to M. Lartet, Stpt. 9," 1864.—' I am of 

 opinion that there are two distinct 

 species of Ibex among the Gibraltar 

 fossils ; the one large with a step to 

 the last lower, and a grooved flange to 

 the talons of the last upper, molar. We 

 have a beautiful upper maxillary of this 

 form which you have not seen. It is 

 larger than a very large male Siberian 

 Ibex. The following are the dimensions 

 of the 6 molars : — 



Upper Lower 



maxDla maxilla 

 In. In. 



Small Gibraltar Ibex 2-85 

 Large „ „ 3-25 



Siberian Ibex . . . 2-85 2-82 



Pyrenean Ibex, female 2'8 2'95 



Nubian Ibex, male • 2-8 2-97 



' The larger upper maxillary of Gib- 

 raltar has the teeth quite as large in 

 proportion as your large lower jaw from 

 the " Gorge d'Enfer." In my view the 

 latter agrees with the characters of the 

 Ibex of the Alps, and differs from the 

 Siberian or Nubian forms. We have 



no jaw so large.' Sept. 11, 1864. — ' Our 

 large upper maxillary of Gibraltar Ibex 

 compares well with the Ibex of the Alps 

 (female). From another cave in Gib- 

 raltar (the Judge's Cave) we have the 

 lower jaw of an Ibex, entire to the 

 tip of the coronoid, which is nearly of 

 the same age as your " Gorge d'Enfer" 

 specimen. 



Gorge 



d'Enfer 



In. 



27 



1-7 



Gibral- 

 tar (B) 

 In. 



245 



115 



Height of four last 



molars .... 

 Height of jaw at 



penultimate . 



' The lower jaw of the female Ibex of 

 the Alps has the penultimate and last 

 lower molars very much as in the Gib- 

 raltar form (B) and as in the "Gorge 

 d'Enfer " specimens, but the horn-core is 

 nearly round in section and less abruptly 

 acuminated, and there is no lateral 

 compression.' — [Ed.] 



2 Hytena crocuta. See antea, p. 465, 

 note 2, and Mr. Busk's paper in the Proc. 

 Lin. Soc. for May 3, 1866, p. 62.— [Ed.] 



