INTRODUCTION JO5 
classes—Archxornithes, of which Archexopteryz alone can be said to be 
known, and Neornithes, his Classification of which, according to the 
paradigm given by himself (pp. 299-302) is as follows :— 
1. Ratira, 
Ratite: Struthiones; Rhee; Casuarii; Apteryges; Dinornithes ; Aipyor- 
nithes. ‘ 
Stereornithes : Phororhacos, Brontornis, Stereornis, &c.; Diatryma; Remi- 
ornis, Dasornis ; Gastornis. 
2. ODONTOLCH: Hesperornithes ; Enaliornithes. 
3. Carinata: [Orders. ] [Suborders. ] 
*, 
Ichthyornithes. 
Colymbiformes:— Colymbi, Podicipedes. 
Sphenisciformes :— Sphenisci. 
Ist Legion. 
ex. Alectoromorphe. Pelargomorphe. Colymbomorphe. 
Procellaritiformes :—Procellariz. 
Ciconiiformes:—  Steganopodes (5); Ardee (2); Ciconie (2); Pheeni- 
copteri (2). ; 
Ansertformes:—  Palamedez ; Anseres. 
First Brigade. 
2nd Legion. 
Falconiformes:—  Cathartee ; Accipitres (4). 
¥ Tinamiformes:— ‘Tinami. 
& Galliformes :— Mesites ; Turnices (2) ; Galli (3) ; Opisthocomi. 
g | | Gruiformess:.... (7). 
3 2 Charadriiformes :— Limicole (6) ; Lari (2); Pterocles ; Columbe (2). 
2 2 Cuculiformes:—  Cuculi (4) ; Psittaci (6). 
3 shy Coractiformes:—  Coraciv (9); Striges (2); Caprimulgi (3); Cypseli (2) ; 
4 E Colii ; Trogones ; Pici (7). 
Be Passeriformes:— PP. anisomyodi :—Subclamatores ; Clamatores (5). 
s) P. diacromyodi :—Suboscines (2) ; Oscines (2). 
[The number suffixed to the name of the Order or Suborder indicates the number 
of Families and Subfamilies recognized, when there is more than one. ] 
Dr. Gadow’s Phylogeny arranged in ordinary fashion, for comparison 
with those used before, would be thus— 
Neornithes 
Ratite...Alectoromorphe. Pelargomorphe + Colymbomorphe...Odontolca 
Coraciomorphe. 
From the preceding pages, recounting the efforts of many system- 
makers—good, bad and indifferent—it will have been seen what a 
very great number and variety of characters need to be had in remem- 
brance while planning any scheme that will at all adequately repre- 
sent the results of the knowledge hitherto attained, and the best 
lesson to be learnt from them is that our present knowledge goes 
