﻿290 Herpetological Notes. 



3. Trachyischium instead of Trachischium. 



Günther's Trachischium (1858) which figures for a genus 

 of Colubridae, is incorrectly written. 



Marschall in tlie year 1873 substituted a y for the i and 

 wrote Trachyschium ; but in making, as he thought, a correc- 

 tion. lie evidently fell liimself in error, as this ñame, being a 

 eompositum derived from xpayú; and foy.íw, must be written 

 Trachyischium, in the same way as vve write Brachyichthys 

 and not Brachichthys ñor Brachychthys. 



<±. Stylophis for Stilosoma. 



The ñame Stilosoma given by A. E. Brown to a genus of 

 Colubridae (1890) ought correetly to be written Stylosoma, 

 as derived from utúXo<; and 3w¡j.a, but as this latter ñame is 

 preoccupied for a genus of Coleóptera by Solier (1851), 

 Brown's ñame must be changed, and I cali this genus Stylo- 

 phis and its species Stylophis extenuatus (A. E. Brown). 



5. Dieurostus for Eurostus. 



When Duméril and Bibron in the year 1853 established 

 the ñame Eurostus for a genus of Colubridae, there existed 

 already the same ñame for a genus of Hemiptera founded by 

 Dallas in 1851, and I propose now the ñame of Dieurostus, 

 so that the species of this genus must he written Dieurostus 

 Dussumieri (D. B.). 



6. Hetaerodipsas for Eteirodipsas. 



The ñame Eteirodipsas given by Jan (1863) to a genus of 

 Colubridae, must be correetly spelled Hetaerodipsas, as deri- 

 ving from !xaípo<; and oi<Wí. The specis must now be called 

 Hetaerodipsas colubrina (Schl.). 



7. Elapohomoeus instead of Elapomojus. 



As 1 liad already occasion to indícate (Anal. Mus. Nac. 

 Buen. Aires, vi, p. 28, nota. 1898), the generic ñame Elapo- 

 mojus Jan (1862) must be correetly written Elapohomoeus. 



