•8 9 9 J 



345 



" This form of Bewick's Wren is the one to which Baird's name leuco- 

 gaster is applicable, as the range, ' southern borders of United States 

 into Mexico,' given by him, taken in connection with the specimens he 

 enumerates, clearly indicates. But it now seems quite certain that by 

 perhaps an interchange at labels Baird was in error when he identified 

 the Texas Thryomanes with Gould's Troglodytes leucogastra} There 

 seems to be no reasonable doubt of the authenticity of the specimen 

 which Dr. Sharpe catalogues as the type of Troglodytes leucogastra, 

 Gould, 2 for it came from the collection of the Zoological Society, where 

 Gould's type was supposed to have been; it was collected in Tamauli- 

 pas, Mexico, the type locality of Troglodytes (=Hemiura) leucogastra, 

 whence, until recently, no other specimen (of Hemiura) has been 

 recorded; and, finally, it is undoubtedly a Hemiura, thus agreeing per- 

 fectly with Gould's original description of Troglodytes leucogastra, 

 while in that description the expression " crissoque pallidi-brunneis" 

 could not possibly apply to any form of Bewick's Wren. Baird's term 

 leucogaster, as used for the T/iryomanes, thus having been based upon 

 a misidentification, can not, according to the usual precedure in such 

 cases, be considered entitled to recognition ; for in reality he proposed 

 no new name, but merely referred his specimens to a species already 

 described. 



"The Texan form of Thryomanes maybe readily distinguished from 

 bewickii by much paler, grayer coloration above, as well as by longer 

 tail, wing, culmen and middle toe. In fact, the lack of intermediate 

 specimens strongly suggests the possibility of specific distinctness; but 

 the material at hand is not sufficient satisfactorily to determine this 

 point." 



Thryomanes bewickii eremophilus Oberholser? 



" Thryothorus beivickii bairdi A. O. U. Check-List, 1886, p. 328 (in 

 part). 



" Ckars. subsp. — Thryomanes T. b. crypto affinis; sed partibus supe- 

 rioribus magis griseis distinguendus. 



••Measurements (18 specimens). — Wing, 51 to 60 (average, 56.1) mm. ; 

 tail, 50.5 to 63.5 (average, 56. S) mm. ; exposed culmen, 13 to 15 (average, 

 13.8) mm.; bill from nostril, 9 to 1 1 (average, 10) mm.; tarsus, 15 to 18.5 

 (average, iS) mm.; middle toe with claw, 13.5 to 17 (average, 15.5) mm. 



" ' Sclater and Salvin, Nomenclator Avium Neotrop., 1873, P- J 55! Salvin 

 and Godman, Biol. Centr.-Amer., Aves, 1SS0, I, p. 95; Faxon, Auk, 1898, 

 XV, p. 60." 



" 2 Cat. Birds Brit. Mus., 1SS1, VI, p. 285." 



3 Proc. U. S. Nat. Mus., XXI, No. 11 53, Nov. 19, 189S, 427. 



