188 a. leith adams on chelonia from gibraltar. 



Reptilia, Amphibia. 



Testudo robusta. Gigantic Maltese Tortoise. 

 Testudo Spratti. Spratt's Tortoise. 

 Lutremys europcea (?). Speckled Tortoise. 

 Lacerta, sp. Lizard, sp. ? 

 Bairachia, sp. Frogs or Toads, sp. 



Mollfsca *. 

 Helix aspersa. 

 Helix vermiculata. 

 Helix candidissima. 

 Helix aperta. 

 Helix Sprattii. 

 Helix striata. 

 Bulimus acutus. 

 Cyclostoma, sp. 

 Clausilia syracusana. 



The stratigraphical conditions under which these animal remains 

 ■were discovered varied considerably. On that account it may be 

 inferred that all were not conveyed into the rock- cavities and hol- 

 lows at the same time and under exactly the same conditions ; and 

 it is not wholly improbable that a redeposition of remains may in 

 one or more instances have taken place. At all events, a contem- 

 poraneity may be claimed for the Elephants, Hippopotami, Myoxi, 

 Anatidse, Chelonia, Lacertilia, and certain Helicida?, inasmuch as 

 their remains were intimately associated. 



I exclude the remains of Horse, Fallow deer, Deer or Goat, and a 

 canine tooth referable to a small Canis, also the remains of the 

 Water-rat, Frogs, and several species of land shells, on account of 

 the following circumstances connected with their discovery : — 



The exuviae of the Horse, Fallow deer, and of a small carnivore of 

 about the size of a Fox were found together in a rock-rent containing 

 red soil and fragments of the parent rock. The other ruminants' 

 teeth, also the canines of a small Vidpes, Arvicola, and Frog-bones, 

 were met with in close proximity to the larger quadrupeds ; but the 

 deposits being composed of closely packed red soil, it may not be 

 improbable that, in the case of the two last-named and several spe- 

 cies of land Snails, they had made their way into the bed after 

 its deposition. At all events, the entire absence of large Carnivora 

 is not the least remarkable feature of the collections. 



Note on Chelonian Remains from the Rock-fissures of Gibraltar. 



As far as yet ascertained, the mammalian and avian remains from 

 the rock-cavities of Malta and Gibraltar belong to different faunas, 

 the Maltese being the more ancient. 



* The Mollusca were determined by the late Dr. S. P. Woodward. 



