GLYPTODONTID^. 125 



Panochthus tuberculatus (Owen^). 



Syn. Glyptodon tuberculatus, Owen^. 



Schistopleurum tuberculatum, Nodot^. 



This is the type species, and is described as being nearly equal in 

 bulk to a Rhinoceros. 



The specimen which may be taken as the type is the one figured 

 by Owen in the ' Catalogue of Fossil Mammalia and Aves in the 

 Museum of the Eoyal College of Surgeons,' pi. v. figs. 3-5 (^o. 

 3609^), since it is probable that the unfigured specimen (No. 3607), 

 which, intended as the type, belongs to G. reticulatus. 



Udb. South America (Argentine Republic and ? Uruguay'). 



M. 3606. Fragment of the peripheral portion of the carapace ; from 

 the Pleisi ocene of Buenos Ayres, Argentine Republic. This 

 specimen accords closely with the above-mentioned frag- 

 ment figured by Owen, and also with the corresponding 

 portion of the complete carapace figured by Burmeister in 

 the ' An. Mus. Buenos Aires,' vol. ii. pi. xiii. 



Bravard Collection. Purchased, 1854. 



39402. Fragment of a carapace, somewhat water-worn, provision- 

 ally referred to this species ; from the Pleistocene of the 

 Rio Negro, Uruguay. 



Presented by D, A. Stoddart, Esq., 1865. 



19954. The greater portion of the terminal tube of the caudal shield 

 from the Pleistocene of Buenos Ayres. This specimen 

 agrees precisely with the corresponding element figured 

 by Burmeister, op. cit. pi. xvi. figs. 1, 2. 



Purchased, 1846. 



39401. A small fragment of a caudal sheath, doubtless belonging to 

 the same form as No. 39402 ; from the Rio Negro. This 

 specimen apparently agrees exactly with the preceding. 



Presented by D. A. Stoddart, Esq., 1865. 



1 Cat. Foss. Mamm. Aves Mus. E. Coll. Surg. p. 120 (184^).— Gl^j^todon. 

 The proposed identification of G. tubercidatus with G. typus (Nodot) is noticed 

 undei- the head of G. reticidatus. 



* Loc. cit. 



3 M6m. Ac. Sci. Dijon, ser. 2, vol. v. p. 81 (1857). 



4 See Flower, Cat. Vert. Mus. R. Coll. Surg. pt. 2, p. G91 (1884). 



5 The remains of a Panochthus from Umguay have been named P. morenoi 

 by Ameghiuo, but the two fragments from that region in the Museum do not 

 apparently differ from the type species. 



