OF THE TICNTH KDrrU)X OF I.lXX.tlS. 141 



Genus 17. Dasypus. p. 50. 



Six species. Type by tautonymy: /). novemcinctns (•'Dasypu.s, 

 Hern."). 



Apart from the difficult and doubtful ca,se of Simla, this is the 

 only instance in which the use of tautonymy in selecting Linnean 

 types brings out a result conti'ary to common use. 



Linnteus placed the name " Dasypus'' among the synonyms of 

 D. novemcinctus alone, and the account in Hernandez from which 

 this name comes is cleai'ly that of one of the group long known as 

 Tatasia, more recently as Tatu. 



The comparatively recent date of the latter cha.nge, the extreme 

 ugliness of I'atu, which antedates 7'atusia. and the classical suita- 

 bility of Eaphractas, which stands for sexcinctits and its allies, 

 will all help to i-econcile us to the shifting of Dasypios from one 

 group to another. 



This shifting is quite unavoidable, if the invaluable principle of 

 tautonymy is to be utilized at all- 

 Species : 



1. UNiciNCTUS, p. 50. Cabassous. 



Linnean reference : Syst. ISTat. (6) p. Q, no. 4, where the sole 

 reference is to Seba, Mus. i. p. 47, pi. xxx. figs. 3 & 4. 

 This, or at least fig. 3 (fig. 4 being more doubtful), is clearly the 

 Ta,touay or Twelve-ba.nded Armadillo. 



No original locality available., but being' from Seba, Surinam 

 may be suggested, if Cabassous occurs there, which is not as yet 

 certainly known. 



2. TRiomcTus. p, 51. ' Tolypeutes. 



Linnean reference : Syst. Nat. (6) p. 6, no. 2, where the sole 

 quotation is to Seba, i. p. 62, pi. xxxviii, figs. 2-3. 

 Seba's animal is a typical Three-banded Armadillo- 

 Suggested type locality : Surinam. 



3. QUADRiciNCTUS. p. 51. Tolypeutes. 



Linnean reference : Syst- Nat. (6) p. 6, no. 3, where the single 

 quotation is to "Column, aquat. ii. p. 15. pi. xvi." (1606). 

 Oolonna's animal is a four-banded specimen of Tolypeutes 

 tricinctus, of which D. quadricinctus is ther-efore a s\'nonym. 



4- SEXCINCTUS. p. 51. Euphractus. 



Linnean references: Mus. Ad. Frid. p. 7 (1754), and Syst. 

 Nat. (6) p. 6, no. 5. 



The former takes precedence, as being based on a specimen, 

 whatever the reference to Ray in the latter might lead to. 



Six-banded Armadillo. 



Type specimen in Stockholm Museum, its locality unknown, 

 Tint Para specimens agree with it in size, and ma v be provisionally 

 accepted as typical {cf. P. Z. S. 1903, ii. p. 242 j. ' 



