340 Lord Walden on the late Colonel TickelVs 
represented pure white underneath, with (including the ter¬ 
minal) five caudal hands; the other with the under-surface 
plumage marked with brown drops, the thigh-coverts with 
the usual transverse bars, and the rectrices with only four 
bands. 
Falco lathami (Tickell*, J. A. S. B. 1833, p. 569) is inci¬ 
dentally alluded to in the article on Limnaetus cristatellus (T.). 
This is the passage :■—■“ I shot a Hawk-Eagle in 1833-34 in 
the jungles of Seheria, Borabhoom (Bengal), which Jerdon 
considers may possibly be referred to this species; but of this 
I am very doubtful, as it was noted by me at the time as 
only 18 inches in length. It had a fine long occipital crest, 
black, with white tips. Head, nape, and wing-coverts clouded 
with ashy and rusty. Back clouded with brown. Lower parts 
white, with a streak of black down the centre of the throat, 
and with rusty bars on the breast and belly. A drawing 
made of it at the time was lost by the sinking of my boat in 
the Ganges; and I have never met with the bird again, al¬ 
though I often subsequently traversed and explored those 
vast forests.” 
Jerdon has suggested that F. lathami , Tickell, might have 
been founded on a young example of L. kieneri , or perhaps 
on Astur trivirgatus^ . The description may have been taken 
* It is not to be concluded with any certainty, from the way Colonel 
Tickell introduces this name (7. c.), that he was bestowing an original 
title of his own on an undescribed species. The internal evidence is the 
other way. The species is the first of the list, and is entered thus:— 
u 1. Falco lathami. Colvy Falcon ? Latham f and then follows the de¬ 
scription. The Colvy ( Cohy) Falcon of Latham is unquestionably B. lo~ 
photes j and on Latham’s plate (G. H. i. 1.10) Mr. G. It. Gray had some four 
years previously founded his F. lathami (Griff, ed. of Cuv. An. King. 
Aves, i. p. 30). It is only at the third species in the list that Colonel 
Tickell begins to bestow titles of his own; and to the name of this species, 
Falco herhcecola , the following footnote is attached :—“ The names of such 
birds as have never come under my notice before, and are necessarily of 
my own coining, I have distinguished by the addition of a T.” All 
through the paper the letter T is added to a new title; but it is wanting 
after the title F. lathami. 
t L. kieneri ad. was obtained at Oorkhia, in Singbhoom, by Colonel 
Tickellj with Astur trivirgatus he was well acquainted. 
