24 ARKIV FÖR ZOOLOGI. BAND 12. K:0 8. 



The elongated middle rectrices attain in the male speci- r 

 men 178 mm; the wing being in the same one 76,5 mm. 



131. Pipromorpha assimilis dyscola Bångs. ~ I J", 

 Nic, San Juan del Norte, Oet. 27. 



Compared with a Mexican specimen of P. a. assimilis 

 the present one is easily recognized as belonging to the 

 southern subspecies P. a. dyscola by its smaller size and 

 paler under surface. 



Measurements: 



Wing 58,5; tail 45,6; culmen 11,5; tarsus 14,5; middle 

 toe without claw 9 mm. »Iris brown.» 



132. Myiozetetes cayanensis cayanensis Lin. — I J, 

 Pa., Pacora, March 3. 



133. Myiozetetes texensis texensis Giraud. — 1 $, 

 C. R., Siquirres, no date; 1 $, Nic, G. Masaya, Dec. 17; 1 

 unsexed, Nic., R. Castillo viejo, no date; 3 cTc?, Nic., San 

 Juan del Norte, Nov. 3 and 6. 



»Iris grayish brown, reddish brown or brown.» 



134. Myiozetetes texensis columbianus Cab. et Heine. 

 — 15, Pa., Panama Viejo, Febr. 26; 1 9, yonug, Pa,, Pa- 

 cora, March 3. 



The coloration of the young is similar to that of the 

 adult, except that the edgings on the remiges are påle russet. 

 Only the head is remarkably different. In the young the 

 superciliary stripes are still not developed, only the prae- 

 frontal region is at the base of the bill and laterally to the 

 upper eyelids duU white. Pileum with the gray feathers 

 intermixed with olive-green ones, and without red on crown. 



135. Myiodynastes maculatus nobilis Sclater. — 1 J", 

 Pa., Pacora, March 3. 



136. Megarhynchus pitangua mexicanus Lafr. — 1 $, 

 C. R., Siquirres, Aug. 21; 1 J*, young, C. R., Talamanca, Si- 

 purio, Aug. 30; 1 ^, Nic, San Juan del Norte, Oct. 23. 



The young has the yellow^ underparts much paler than 

 the adult birds and the superciliary stripes distinctly con- 



