BY DR. T. T. KAUP. 
1. S. passerina , Kp. ; Str. passer ina, Linn.; pusilla , Daud. ; 
acadica , Temm. ; Yaill. t. 46, Gould t. 50. — Tail 56-62 mm. long, 
with five arrow-like cross bands reaching to the shaft. Northern 
and eastern parts of Europe and Asia. 
b. Subgenus Nyctea, Steph.— The long wings cover two-thirds 
of the tail, which is as long as the body; the first quill shorter 
than the fourth ; l-4th with broad inner- webs and emarginated to 
the end ; ear-orifice larger than the diameter of the eye (perhaps 
asymmetric). 
2. S. nyctea , Selby ; Str. nyctea , Linn. ; Candida, , Lath. ; nivea, 
iliunb. ; Daud.; Gould, t. 45. — Bill and nails black ; total plumage 
in advanced age pure white, in youth black spotted ; size of Bubo 
maximus male. Northern parts of Europe, Asia, and America. 
c. Subgenus Surnia, Dum. — The first quill as long as the 
seventh, l-3d quills distinctly emarginated ; ear-orifice less than 
the diameter of the eye ; tail longer than the body. 
3. S. idula , Bp. ; Str. ulula , Linn. ; Faun. suec. 78 ; hudsonia , 
Gmel.; funerea, Lath; Gould, t. 45; PI. Enl. 463; Edw. t. 62; 
' ils. t. 50, 6; Aud. 378. — A broad black vertical stripe from the 
cai to the neck. It inhabits the same countries as the S. nyctea , 
and strays very rarely to England and Germany. 
V. Genus IERAGLAUX, Kp. 
Athene, Auct. Nov. 
i t] ! e “ argin of a lon £ developed cere, which 
toes loner ft a ? * a f ° f the bin ; Will = s lon 2 with long Wing-end ; 
lai-'re S ’ m 7 covered with bristle feathers ; in size middling or 
eun'ed S tr U t 8 l 1 CE / HAL0GLAUX -“ With lar S e head > strong 
than the tarsus ° ^ sllorter tllan tIie tenth; toes shorter 
With Strong S,r s COyered WitL Str0Dg Shafted feathers l toes 
Pb Col 2\ Cl \\j iriS ’ ^ tr ‘ sv -P erci l %aTls > Yieill. ; sonnerati, Temm., 
‘107 ’ VmgS and tail -feathers rusty red, with white traces 
