18S8.] MR. R. B SHARPE ON A NEW SPECIKS OF ELAINEA. 107 



(4) These facts necessitate the separation of the Varanidse from 

 the true Lacertilia into a group equivalent to that of, e. <j., Rhynclio- 

 ceplialia. 



(5) It is probable, as generally believed, that the Lacertilia more 

 nearly represent the primitive Reptilian stock than any other 

 Sauiopsida. 



(6) The particular resemblance between the Varanidse and the 

 Crocodilia renders it probable that some Reptilian type existed in 

 early Mesozoic or late Palseozoic times, which in many points, 

 especially those enumerated in(l), resembled the existing Varanidse. 

 From this type originated the Crocodilia, Dinosauria, and Aves. 



4. On a new Species of Elainea from the Island of Fernando 

 Norohna. By R. Bowdler Sharpe, F.L.S., F.Z.S., &c. 



[Keceived January 18, 1888.] 



My colleague Mr. H. N. Ridley, during his recent visit to the 

 island of Fernando Norohna, procured several specimens of a Tyrant- 

 bird, which is evidently undescribed. I propose therefore to call it 



Elainea ridleyana, sp. n. 



Adult male. General colour above dusky oUve-brown, slightly 

 paler brown on the lower back and rump ; lesser wing-coverts olive- 

 brown, the lower ones edged with white ; median and greater coverts 

 dark sepia-brown, tipped with white, forming wing-bars; bastard-wing, 

 primary-coverts, and quills dark brown, the latter edged with whity 

 brown, the inner secondaries with white like the greater coverts, broad- 

 ening towards the ends of the outer web ; upper tail-coverts and 

 tail-feathers dark brown ; crown of head crested, a little more 

 dusky in colour than the back, with a concealed white streak in the 

 centre ; lores dull ashy ; feathers round eye and ear-coverts dark 

 olive-brown ; cheeks ashy grey, with an olive tinge ; throat ashy 

 whitish ; fore neck and chest ashy grey, with an olive tinge ; breast 

 and abdomen pale sulphur-yellow ; sides of body and flanks ashy, 

 washed with ohve ; thighs yellowish, with brown bases ; under tail- 

 coverts pale sulphur-yellow ; uiuier wing-coverts and axillaries pale 

 sulphur-yellow ; quills below dusky, pale ashy olive along the inner 

 edge. Total length 67 inches, culmen 06, wing 325, tail 2-9, 

 tarsus 0'8. 



Hab. Island of Fernando Norohna (Ridlei/). 



This species approaches Elainea pagaiia (Licht.) in general ap- 

 pearance, but is a much darker biid, with dusky brown head and 

 ear-coverts, and is at once to be recognized by its conspicuously 

 longer bdl. 



