AUT. 7 REVISION OF THE GENUS BASILEUTERUS TODD 75 



flanks shaded with sulphine yellow; "iris brown; bill brownish 

 black, paler below ; feet flesh color/' (Young stages not seen.) 



Measurements. — Male: Wing, 59-63 (average, 61); tail, 52-57 

 (53.5); bill, 9.5-11 (10.2); tarsus, 18-19.5 (19). Female: Wing, 

 54-58 (56); tail, 48-52 (49.5); tail, 9-10.5 (9.7); tarsus, 17.5-19.5 

 (18.8). 



Range. — Southern Mexico, from Vera Cruz (also in Jalisco) and 

 Pueblo south and east to Chiapas and Campeche, and to Guatemala; 

 reappearing in northern Nicaragua and northwestern Costa Rica. 



Remm'ks. — I select as type locality for this form Jalapa, Vera 

 Cruz, ex Cabanis, 1850, who was the next after Lichtenstein to record 

 it. Sclater at first overlooked Lichtenstein's brief diagnosis, and 

 identified the form with the Musckapa hrasierii of Giraud, with 

 which it is now^ considered conspecific, as given by Mr. Ridgway in 

 his great work. I can not, however, follow this noted authority in 

 separating the birds from Jalisco under another name, flavescens. 

 I find that the type and topotype of this supposed new race are so 

 closely matched by skins from Jalapa and other points in eastern 

 Mexico that I could not think of separating them, certainly not on 

 the basis of only two specimens. On the other hand, there appears 

 to be some geographical variation in evidence between specimens 

 from the northern and southern parts of the range, respectively. 

 Thus, only 10 out of 53 skins from Mexico, Guatemala, and British 

 Honduras show any decided admixture of " orange rufous" (i. e., 

 raw sienna) on the crown, the majority of the individuals being 

 plain yellow on this part. By way of contrast, only 14 out of 63 

 specimens from Nicaragua and northwestern Costa Rica fail to show 

 decidedly this reddish color. (All the specimens of this race from 

 Costa Rica come from the northwestern part of the country; those 

 from other parts I refer to godnmni.) Nevertheless, to set up the 

 southern birds as an intermediate race on the basis of this imper- 

 fecth' differentiated character would be highly undesirable. 



Specimens exammed. — Mexico : Jalapa, Vera Cruz, 14 ; Pasa 

 Nueva, Vera Cruz. 1; Buena Vista, Vera Cruz, 1; Motzorongo, Vera 

 Cruz. 2 ; Presidio, Vera Cruz, 1 ; San Andreas Tuxtla, Vera Cruz, 1 ; 

 Mirador. Vera Cruz, 3: Cordova, Vera Cruz, 1; Metlatoyuca, Puebla, 

 4: mountains near Santo Domingo, Oaxaca, 2; Choapam, Oaxaca, 1; 

 Pluma. Oaxaca. 2; San Sebastian, Jalisco, 2 (including type of B. c. 

 -flavescens) : Teapa, Tabasco. 5; Apazote. Campeche, 1 : Camp Mengel, 

 Quintana Roo, 1 ; Amatan, Chiapas. 2 ; Ocuilapa, Chiapas, 2 ; un- 

 specified, 2. British Honduras: Manatee Lagoon, 2; El Cayo, 1. 

 Guatemala: Vera Paz. 1; Patulul. 2; Finca Sepacuite, 12-; Secan- 

 quim, 5; Finca El Espino, 1; unspecified, 13. Nicaragua: R'o Coco 



