254 PALEONTOLOGY. 



ranked as new species : — Cheiroptera : Vespertilio Bourguignati, Am- 

 phidozotherium Cayluxi, n. gen. Rodentia: Hystrixil) Lamandini, 

 teeth not preserved, so that the presence of this genus in F. Eocene is 

 not certain ; Theridomys platiceps, founded on a skull with teeth, and 

 Issiodoromys minor. Carnivora : Amphicyon amhiguus differs much 

 from the dog in the form of jaw ; Bracliycyon Gaudryi (Filhol, 1872), 

 dentition given, viz. one premolar less than dog ; allied both to Canis 

 and Amphicyon. The skull of Cynodictis Borieri (Filhol, 1875) is 

 figured : one of the most powerful carnivora of the deposit ; upper 

 jaw has i. 3, c. 1, pm. 3, cr. 1, t. 2; hut pm. 4 in lower jaw, or ono 

 premolar less than Amphicyon : the base of the skull offers mixed cha- 

 racters, some canine, some viverrine, and others peculiar and not found 

 in any living forms. C. Gryei shows some relations to Viverrida) ; but 

 the facial bones are as in Canidse ; the pterygoid processes are very 

 long. C. crassidens has affinity with Amphicyon. C. Leymeriei ; C. 

 hrachyrostris ; 0. curvirosfris, near to C. robastus (Filhol, 1872); C. 

 crassirostris, a smadl form near to O. compressidens (Filhol, 1872), 

 occurs also in Miocene of Auvergne. (7. ferox, allied to Viverra an- 

 gustidens (Filhol, 1872), has the points of the carnivorous tooth the 

 most elevated of the genus ; C. intermedins a small form, the second 

 tubercular tooth constantly small, always present in the type; but in 

 the next form, C. intermedins viverroides, it disappears altogether, 

 showing a carnivore with Cynodictis form of teeth, but dental formula 

 of Viverra ; this character seems constant, as it holds in 20 examples, 

 and indicates a passage of Yiverroid Canidse into Yiverridae ; C. gracilis ; 

 C. leptorhynchus^ known by a skull and numerous jaws, has again 

 leanings towards Amphicyon. In C. compressidens (Filhol, 1872) the 

 first tubercular has exactly the same shape as the carnivorous tooth, 

 suggesting the existence of forms with 2 or more teeth (as in Cyno- 

 hycenodon) ; C. exilis [see FUhol, Compt. Rend.'] shows the same 

 feature. Viverra minima is a small new form. MachcBrodus insignis^ 

 from portions of canines, is larger than any Miocene examples ; M. 

 hidentatus (Filhol, 1873) = Eusmilus perarmatus (Gerv.) is allied to 

 Drepanodon. Fresh material enables a re-description of Pseudcelurus 

 Bdwardsii (Filhol, 1872), which is allied to Cryptoprocta of Mada- 

 gascar : P. intermedins is a new species. A skull of Hycenodoyi shows 

 the milk-dentition, and proves that this genus is not marsupial ; H. 

 Heberti, based on fragmentary jaws, is the largest form yet known ; 

 H. compressus and H. Cayhixi are separated by details of dentition ; 

 Pterodon bi-incisivus, founded on an upper jaw, has 4 premolars, — also 

 a third molar, which has not been previously found. E. B. T. 



Filhol, H. Note sur la decouverte d'une dent de Bhinoceros fossile 



a la Nouvelle Caledonie. [Tooth of Fossil Ehinoceros from New 



Caledonia.] Ann. Sci. Nat. ser. 6, Zool. t. iii. p. 1. 



Note on a first upper premolar of Ehinoceros, said to have been 



found in gold-searching. It has all the appearance of being fossil, but 



does not differ from the Sumatran species. E. 13. T. 



