XVI LIST OF NEW GENERA AND SPECIES. 



Order SQUAMATA. 

 Suborder SAURIA. 



Family Anguid^. 

 Genus Glyptosaurus Auct. 

 Glyptosaiirus sp. indet p. 159. 



Sul)ordcr SERPENTES. 

 Family Typhlophid^. 

 Genus Helminthophis Peters. 

 Helminthophis bondensis Griffin p. 165. 



Family Colubrid^. 



Aporophis mdanocephalus Griffin p. 171. 



Atractus tceniatus Griffin p. 173, PI. XXVIII, figs. 1-3. 



Liophis elceoides Griffin p. 187. 



Bhadina'a orina Griffin p. 195. 



Tropidodipsas spilogaster Griffin p. 197, PI. XXVIII, figs. 4-6. 



Clelia euprepa Griffin p. 203, PI. XXVIII, figs. 7-9. 



Clelia peruviana Griffin p. 204. 



Elaps columbianus Griffin p. 216. 



Flaps hoUandi Griffin p. 218, PI. XXVIII, figs. 10-12. 



Class PISCES. 



Family Characid^. 



Subfamily Cheirodontin^. 



Aphyocharax paraguayensis Eigcnmann p. 33, PI. II, fig. 2. 



Leptobrycon Eigenmann, gen. nov p. 46. 



Leptobrycon jatuarance Eigenmann p. 46, PI. VI, fig. 1. 



Macrupsobrycon Eigenmann, gen. nov p. 48. 



Macropsobrycon uruguayance Eigenmann p. 48, PI. VI, fig. 2. 



Megalamphodus Eigenmann, gen. nov p. 49. 



Meyulamphodus rnegalopterus Eigenmann p. 50, PI. VII. 



Megalamphodus micropterus Eigenmann p. 54, PI. VIII, fig. 1. 



Microschemobrycon Eigenmann, gen. nov p. 56. 



Microschemobrycan guaparensis Eigenmann p. 56, PI. VIII. fig. 2. 



Oligobrycon Eigenmann, gen. nov p. 56. 



Oligobrycon microstomus Eigenmann p. 57, PI. IX, fig. 1. 



Aphyocheirodon Eigenmaiui, gen. nov p. 58. 



Aphyocheirodoji heynigramynus Eigenmann p. 59, PI. IX, fig. 2. 



Compsura Eigenmann, gen. nov p. 60. 



Compsura heterura Eigenmann p. 61, PI. X, fig. 1. 



Mixobrycon Eigenmann, gen, nov p. 62. 



