MONOGRAPH OF THE OWLS— STRIGID2, 
« 
My arrangement is now closed so far as regards the genera. 
A. Surnixn. 1. Glaucidium. 2. Nyctale. 3. Athene. 4. Surnia. 5. Zeraglaux. 
B.Srricin2. 1. Scops. 2.OTus. 3.Bubo. 4.Striz. 5.Syrnium. 
I think we have no more existing genera, because the tenth 
genus makes a circle, and Glaucidiwm and Syrnium exhibit the 
same character, that the first wing-feather is shorter than the 
tenth. The last genus Jbicter in the family Falconide, has also 
some characters in common with the first genus Zerax. 
We see also in every subfamily the affinity of the alternates, and 
(1.) Glaneidium, (3.) Athene, (5.) Zeraglaux, are so very nearly 
connected, that all the Ornithologists have mixed these three 
genera together; (2.) Nyctale, and (4.) Surnia, show also a very 
near affinity. 
The same is the case also. with (1.) Scops, (3.) Bubo, and (5.) 
Syrnium. These genera are algo so near, that some Ornithologists 
have brought a true Bubo (Bubo cristatus) into the neighbourhood 
of Scops and a true Bubo (B. philippensis) to Syrnium. 
All the genera must be divided into subgenera, which must be 
arranged in the same way, as I have classified the true genera. I 
give a survey of all these subgenera :— 
A. SuRNINA. 






I. Guaverpium. Il. Nyoraue. IIL. ATHENE. TY. SuRNIA. V. ZERAGLAUX- 
a.The species! a. Microglaux | a. Microptynx | a. 
with naked toes) ——perlata, &c. 8. passerina 
b. Nyctale 6. Athene b. Nyctea b, Spiloglaux 
acadica, &e, noctua, &c. 8. nyctea T. boobook, ke. 
¢ .. . . |¢. Pholeoptynx |e, ¢. Sceloglaux 
cunicularia, ke. albifacies 
d. Glaucidium | d. d. d. Surnia d. Ctenoglaux 
nanum, &c. ulula scutellatus 
e. Taenioptynx | ¢. ¢e. Taeniogl 
ynx | ¢. q aux |¢. e. Zeraglaux 
Brodiei. cantanaeptars, &e. strenuus, &€- 

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