ICHUITES. 215 



ICHN1TES. 



A. Specimens ivhich are probably in most cases of Labyrinthodont 



origin. 



CHIROSAURUS, Kaup 1 . 

 Syn. Chirotherium, Kaup 2 . 



The impressions of both feet are pentaclactylate, with distinct 

 nails; those of the manus being rather more than half the size of 

 those of the pes. The pollex is short, and projects nearly at right 

 angles to the axis of the third digit ; the third digit of the pes is the 

 largest. 



The Labyrinthodont nature of these footprints was suggested by 

 Owen 3 : Miall i considered that some of them might by Dinosaurian ; 

 Winkler a regards them as formed by Trematosaurus brauni, but 

 the larger size of Capitosanrus nasutus is in favour of those of the 

 type species of Ohirosaurus having been made by the latter animal. 

 The name Chirosaurus is earlier than either Capitosaurus or Trem- 

 atosaurus. 



The so-called Chirotherium minus appears to indicate another 

 genus (vide infra). 



Chirosaurus barthi, Kaup 6 . 



Syn. Chirotherium barthi, Kaup 7 . 

 Chirotherium majus, Sickler 8 . 



The type species, occurring typically in the Bunter of Hessberg. 

 The footprints of the pes usually have a length of about eight inches 

 in large individuals. 



The name Chirotherium geinitzi, Hornstein 9 , has been applied to 

 an animal indicated by footprints of the same general form, but 

 differing decidedly in contour ; the type specimen being from the 

 Bunter of Karlshafen. 



Hab. Europe (Germany) 



1 Neues Jahrb. 1835, p. 328. As it was considered that these footprints 

 were probably Mammalian, the name Chirotherium was proposed, but in the 

 event of their proving to be Saurian the alternative name Chirosaurus was also 

 given. 2 Loc. cit. 



3 See Palaeontology, 2nd ed. p. 190 (1861). 



4 Eep. Brit. Assoc, for 1873, p. 244. 



5 Archiv. Mus. Teyler, ser. 2, vol. ii. p. 187 (1886). 



6 Neues Jahrb. 1835, p. 328. 7 Loc cit. 



8 Die vorziiglichsten Farhten-Abdrucke, etc., von Hildburghausen (1836). — 

 Not seen. 



9 See Archiv. Mus. Teyler, ser. 2, vol. ii. p. 174. 



