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Show 1888.] MR. R. B SHARPE ON A NEW SPECIES OF ELAINEA. 107 (4) These facts necessitate the separation of the Varanidae from the true Lacertilia into a group equivalent to that of, e.g., Rhynchocephalia. (5) It is probable, as generally believed, that the Lacertilia more nearly represent the primitive Reptilian stock than any other Sauropsida. (6) The particular resemblance between the Varanidae and the Crocodilia renders it probable that some Reptilian type existed in early Mesozoic or late Palaeozoic times, which in many points, especially those enumerated in(l), resembled the existing Varanidae. From this type originated the Crocodilia, Dinosauria, and Aves. 4. O n a new Species of Elainea from the Island of Fernando Norohna. By R. B O W D L E R SHARPE, F.L.SV F.Z.S., &c. [Received January 18, 1888.] My colleague Mr. Ii. 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 ELAINE.\ RIDLEYANA, sp. n. Adult male. General colour above dusky olive-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, tbe latter edged with whity brown, the inner secondaries with white like the greater coverts, broadening 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, writh 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 olive ; thighs yellowish, with brown bases ; under tail-coverts pale sulphur-yellow ; under wing-coverts and axillaries pale sulphur-yellow; quills below dusky, pale ashy olive along the inner edge. Total length 6 7 inches, culmen 06, wing 3 25, tail 2*9, tarsus 0*8. Hab. Island of Fernando Norohna (Ridleg). This species approaches Elainea pagana (Licht.) hi general appearance, but is a much darker bird, with dusky brown head and ear-coverts, and is at once to be recognized by its conspicuously longer bill. |