

Printed on the plate
“Caspian Snow-Partridge”
Tetraogallus Caspius
Engraved caption: TETRAOGALLUS CASPIUS.
Modern identification
Tetraogallus caspius
- Certain
- Checked against the engraved caption
- Pheasants, Grouse, and Allies · Phasianidae
Why
Gmelin's Tetrao caspius = Caspian Snowcock, drawn from a living bird from Tabriz.
Sources
List of Plates (vol. VII); Gould's text; Kansas catalogue; the plate
Who made the plate
J. Wolf and H. C. Richter, del et lithHullmandel & Walton, Imp
- Joseph Wolf drew and lithographed
- Henry Constantine Richter drew and lithographed
- Hullmandel & Walton printed
As the credit line gives it. More on who made these plates.