1905. | ON THE ANATOMY OF LIMICOLINE BIRDS. 155 
5. On the Anatomy of Limicoline Birds; with special 
Reference to the Correlation of Modifications. By 
P. Cwaumers Mrrcuent, M.A., D.Se. (Oxon.), 
Secretary to the Society. 
[Received May 16, 1905. | 
(Text-figures 23-28.) 
In this memoir I use the term Limicole in the sense of 
Gadow (3) as a major subdivision of the Order Charadriiformes. 
I have dissected examples of the following forms, and where, in 
this paper, I refer to family-characters, I must be understood as 
limiting my remarks to the birds I have myself dissected, unless I 
definitely state otherwise :— 
Suborder Limicoa. 
Family Charadriide ...... Charadrius pluvialis. 
Timantopus nigricollis. 
Vanellus vulgaris. 
Gallinago celestis. 
Rhynchea capensis. 
Scolopax rusticola. 
Chionide............ Chionis alba. 
Glareolide ......... Glareola pratincola. 
Thinocoride ...... Thinocorus species @ 
(Edicnemide ...... “dicnenus scolopax. 
Paaridee. apices. Hydrophasianus chirurgus. 
The greater part of the actual dissection was completed in 
1902, in continuation of my work on Gruiform Birds (7); pressure 
of other duties has made it impossible to finish it sooner. JI am 
indebted to the facilities afforded by this Society in the prosectorium 
at the Gardens for the material, and to my friend Mr. F. E. 
Beddard, F.R.S., the Society’s Prosector, for much kindly interest. 
DIASTATAXY IN THE LIMICOLA. 
In the arrangement of the feathers on the wing, all Limicoline 
birds are closely similar. They are diastataxic in the most typical 
form. The condition in Chionis alba (text-fig. 23, p. 156) may 
serve as an example. Along the edge of the ulna, from the wrist 
towards the elbow, the great quills with their associated coverts 
are arranged in an orderly series, but after four of these rows, each 
headed by a quill, there is a row from which the quill is missing, 
forming the diastataxic gap (text-fig. 23, x, p. 156). The carpal 
remex and covert are present (C.R., C0. ), the covert, in most cases 
(although not in Chionis), beimg ‘conspicuously larger than the 
remex. These two feathers lie closer to the most pr oximal primary- 
