MEXICAN TAILLESS AMPHIBIANS 



71 



parts light; upper lip white; a wide white interorbital band, bordered 

 anteriorly and posteriorly by a black stripe; white vertebral stripe 

 interrupted and irregular in width; a lateral white stripe; underparts 

 yellowish, with dusky marbling; a lateral row of small warts; skin of 

 upperparts tubercular; bony surface of top of head fairly smooth. 

 In the southern part of the range of Bujo valliceps specimens will be 

 found that have a much yellower ground color than typical individ- 

 uals and these usually have rather conspicuous dark-brown spots 

 irregularly arranged on the upperparts. They often occur along with 

 other specimens that exhibit the normal coloration of this species. 

 Females generally have a smaller tympanum than males. In a large 

 series of specimens considerable variation in the size of the tympanum 

 will be noted. 



Specimens examined. — One hundred and thirty-three, as follows: 



Bufo valliceps 



Museum 



M.C.Z. 



U.S.N.M.. 

 Do... 



Do. 

 Do. 

 Do. 

 Do. 



Do 



F.M.N.H.. 



M.C.Z 



A.M.N.H.. 

 B.M 



U.S.N.M.. 



Do.... 



Do.-.. 

 C.O.E.M.. 

 U.S.N.M.. 



Do.... 

 A.M.N.H. 



Do.... 

 U.S.N.M.. 



M.C.Z 



F.M.N. H... 

 A.M.N.H... 



Do 



C.A.S 



Do.... 



Do.... 



Do.... 

 M.N.B--.- 

 A.M.N.H. 



Do.... 



Do.... 



U.S.N.M.. 



C.O.E.M. 

 M.C.Z 



Catalogue- 

 No. 



47168 

 2599 



47081-83 



46918 



47053-55 



42501-04 



2591 



1481 



8447-51 



13756 



5a 3. 17. 25 



12170 



25094-96 



71056 



47230 

 30360-69 



13792 



13763 

 16548-51 



10298 



1687 



13768-72 



13774-77 



5083 

 5299 

 5468 

 5563 

 3532 

 12306-08 

 12292 

 12340 



46948-49 



2630 



Num- 

 ber of 

 speci- 

 mens 



Locality collected 



Coahuila: MoDclova 



NUEVO Leon: 



Cerro de la Silla 



Santa Catarina 



Tamaulipas: 



Alta Mira — 



Hidalgo 



Jaumave 



La Barra, 8 kilo, east of Tam- 

 pico. 



Matamoros 



Vera Cruz: 



Achotal 



Cerro del Qallo 



Cocos... 



Cordoba — 



Mirador 



do 



do 



Motzoronga.. 



Orizaba 



do 



do 



do... 



Vicinity of Orizaba 



Panuco-- 



Perez 



Potrero — 



North of Rio Atoyac near 

 Potrero. 



Tezonapa 



Vera Cruz 



do 



do 



do 



do 



do.. 



Vera Cruz (2 miles south)... 



Natarit: Acaponeta 



Puebla: Puebla 



Morelos: Cuernavaca 



Date collected 



Mar. 27, 1902 

 Apr. —1853 



Apr. 23,1898 

 Mar. 19,1891 

 June 4,1898 



Mar. — , 1863 



1904 



1921 

 June 22,1919 



Jan. 19, 1894 



June 25,1919 

 do 



1923 



1903 

 June 19, 1919 

 June 18,1919 



July 14,1925 



July 24,1925 



July 23,1925 



July 25,1926 



June 3, 1919 

 June 2, 1919 

 Mar. 1,1919 

 /June 30,1897 

 IJuly 2, 1897 



By whom collected or 

 from whom received 



1 Young. 



' Cotypes of Bujo sternosignatus. 



• Cotypes of Bufo valliceps. 



Edward Palmer. 



Nelson and Goldman. 

 D. N. Couch. 



Nelson and Goldman. 

 William Lloyd. 

 Nelson and Goldman. 

 Edward Palmer. 



D. N. Couch. 



and 



Edmund Heller 

 C. M. Barber. 

 E. R. Dunn. 

 Paul D. R. Ruthling. 

 Augusta Sallfe. 

 C. Sartorius. 



Do. 



Do. 



Nelson and Goldman. 

 Francis Sumichrast. 

 Paul D. R. Ruthling. 



Do. 

 Francis Sumichrast. 

 W. W. Brown. 

 S. E. Meek. 

 Paul D. R. Ruthling. 



Do. 



Joseph R. Slevin. 



Do. 



Do. 



Do. 

 Ferdinand Deppe. 

 Paul D. R. Ruthling. 



Do. 



Do. 



[Nelson and Goldman. 

 T. Barbour. 



