492 MK. O. SALVIN ON THE AVIFAUNA 



Genus Pyrocephalus. 

 This genus is of purely Neotropical range, its most northern range extending in 

 P. mexicanus to Mexico. In P. ruhineus it is found in imperfectly segregated races 

 all over the greater part of the southern continent, including the shores of Ecuador 

 opposite the Galapagos Islands. P. nanus is closely allied to the other species of the 

 genus, and strictly congeneric with them. 



Fykocephalus nanus. 



Pyrocephalus nanus, Gould, Zool. Voy. Beagle, iii. p. 45, t. vii. ; Scl. & Salv. P. Z. S. 1870, p. 323; 



Suudev. P. Z. S. 18n, p. 125. 

 Pyrocephalus dubius, Gould, Zool. Voy. Beagle, iii. p. 46. 



cf (Indefatigable Island) fusco-niger : pileo toto et corpore subtus coccineis : tectri- 

 cihus subalaribus rosaceis : rostro et pedibus nigris : long, tota 4-25, alaj 2'5, caudse 2'5, 

 tarsi 0'7, rostri a rictu 0'7. 



2 (Indefatigable Island) fusca, alls caudaque paulo obscurioribus : loris et corpore 

 subtus albis, abdomine luteo induto: rostro et pedibus nigris: long, tota 4-5, alee 2-5, 

 caudae 2'I, tarsi 0-75, rostri a rictu 0'7. 



c? juv. feminsc omnino similis, sed pectore striis fuscis indistincte notato. 



llah. " Several islands of the Galapagos " [Darwin) ; Indefatigable and Bindloe 

 Islands [Habel) ; Indefatigable and James Islands (Sundevall). 



Having examined the types of P. dubius in the British Museum, I believe them 

 to be young males of P. names. This may account for their diiferent appearance in 

 life from P. nanus, to which Mr. Darwin alludes. It also accounts for the slightly 

 smaller dimensions compared with the adults to which I believe them to belong. 



" Nearly related to a common and favourite species of the mainland of Ecuador, 

 which is known by the name of ' Chocoterin.' The female is tamer than the male, 

 and frequents shady spots under the trees. The male seeks a solitary bush, from 

 which he darts upon his prey. The plumage of the young male resembles that of the 

 female. This species was found on all the islands visited." — H. 



Genus Myiaechus. 

 This, too, is a member of a Neogean family, the species of which are distributed over 

 the greater part of the two continents, as well as the West Indies. Its nearest allies are 

 perhaps the island races of the Antilles rather than those of the continent ; and in this 

 respect the affinities of Dendraeca aureola are, to some extent, repeated ; but in tlie 

 present case the specific differences of M. magnirostris are well defined. 



