CHAMBERLIN: THE CHILOPODA OF BRAZIL. 209 
MECISTAUCHENUS MICRONYX Broélemann. 
Aphilodon micronyx Brélemann, Rev. Mus. Paulista, 1901, 5, p. 46; Cat. Myr. 
Brésil., 1908, p. 3. 
Mecistauchenus micronyx Brélemann, Bull. Soc. ent. France, 1907, p. 283. 
Locality.— Brazil (precise locality not reported). 
APHILODON Silvestri. 
Comm. Mus. nac. Buenos Aires, 1898, 1, p. 39; Attem, Zool. jahrb. Syst., 
19038, 18, p. 215, 288; Verhoeff, Bronn’s Thierreich, 5, p. 279, 282; 
Silvestri, Boll. Lab. zool. R. se. Agricol. Portici, 1909, 4, p. 53. 
APHILODON ANGUSTATUS Silvestri. 
Rend. R. acead. Lincei, ser. 5, 18, p. 269; Boll. Lab. zool. R. sc. Agricol. 
Portici, 1909, 4, p. 56. 
Locality— State of Matto Grosso: Urucum, Corumbé. Also 
reported from Paraguay and Argentina. 
Mecopuiuus Silvestri. 
Rend. R. accad. Lincei, 1909, ser. 5, 1, 18, p. 268. 
M£EcOPHILUS NEOTROPICUS Silvestri. 
Rend. R. accad. Lincei, 1909, ser. 5, 1, 18, p. 269. 
Locality.— State of Parand: Iguasst. 
MECISTOCEPHALIDAE. 
MercistocerHaLus Newport. 
Proc. Zool. soc. London, 1842, p. 178; Trans. Linn. soc. London, 1844, 19, 
p. 276; Meinert, Naturh. tiddskr., 1870, ser. 3, 7, p. 92; Latzel, Myr. 
Ost-Ung. monarch., 1880, 1, p. 160; Meinert, Proc. Amer. philos. soc., 
1886, 23, p. 212; Haase, Abhandl. Mus. Dresden, 1887, 5, p. 100. 
Lamnonyx Attems, Zool. jahrb. Syst., 1903, 18, p. 210; Verhoeff, Bronn’s 
Theirreich, 1908, 5, p. 273. 
