76 BULLETIN 32, UNITED STATES NATIONAL MUSEUM. 



Hydromorphus Peters. 



Monatsber. K. Preuss. Akad., 1859, p. 276. 

 Hydromorphus concolor Peters, loc. cit., 277. 

 Costa Rica, Hoffmann. 



Scytale Boie. 



Dum. Blbr., Giintber. 



Scytale coronatum Schneider, Dum. Bibr,, vii,999. ' 



Subspecies coronatum Dam. Bibr. 

 Panama, Sternberg. 



Oxyrrhopus Wagler. 



Nat. Syst. Amphib., 1830, p. 185 ; Idem et BrachyrhytonDnm.BihT. Erp. G^n., vii, p. 1002. 

 Oxyrrhopus doliatus Dum. Bibr., Erp. G^n., vii, p. 1020 ; Oxyrrhopus pelolarins Linn, 

 Cope, Journ. Acad. Pbila., 1875, p. 132 (not of Dum. Bibr.). 

 Subspecies semicinctus Cope ; the bands not extending on the belly. 

 East Costa Rica, Gabb. 

 Oxyrrhopus occipitolutkus Dum. Bibr., vii, p. 1009. 



Darien, Selfridge. 

 Oxyrrhopus clelia Linn. ; Brachyrhyion clelia Dum, Bibr. ; Scolecophis scytalinus 

 Cope, Proc. Acid. Phila., 1866. p. 320. 

 Panama, Gallaer ; Veraguas, Mitchell; Tehuautepec, Sumichrast ; Yucatan, Schott ; 

 Darieii, Sel/ridije. 

 Oxyrrhopus plumbeus Wied; Giintber, Catal. Col. Snakes in Brit. Mns., 1658, p. 

 189 ; Cope, Journ. Acad. PhiJa., 1875, p. 131 ; Brachyrhyion plumbeum Dum. Bibr., 

 Erp. G6n., viii. 

 Costa Rica, Gabh ; Tehuautepec, Streets. 



Xenodon Boie. 



Isis von 0kcn,1827. 



Xenooon axgustirostris Peters, Monatsber. Preuss. Akad., 1864, p. 390 ; Cope, Journ. 

 Acad. Phila., 1875, pp. 107-Hl. 

 Panama, Leconte ; Costa Rica, Gabh; Panama, Bransford ; Guatemala, Hague. 



Tomodon Dum. et Bibr. 

 Erp. G6n., vii, j). 932. 



Tomodon s trigatus Giintber, Catal. Col. Brit. Mns., 1858, p. 52. 

 Nicaragua, GUnther. 



Manolepis Cope. 



Proc. Amt-r. Philos. Soc, 1884, p. 176. 



Manolepis nasutus Cope, Proc. Amer. Philos. Soc, 1884, p. 176; Tomodon naautua 

 Cojie, Proc. Acad. Phila., 1864, p. 166; Sumichrast, Arch. del. Science Bibl. Uuivers. 

 1872, 262 ; Bocourt, Journal de Zoologie 1876, p. 24. 

 Pacific coast at Tehuautepec, Sumichrast ; Colima Xantus. 



Conophis Peters. 



Monatsber. K. Akad. Berlin, 1860, p. 521. 



Conophis vittatus Peters, Monatsber. Akad. Preuss., 1860, p. 519. 

 Guatemala, Dow. 



