List of dragon breeds

[Captain Eleanor Hawke]

Heavyweights


British Dragons

-Chequered Nettle
-Parnassian
-Regal Copper


French Dragons

-Chanson-de-Guerre
-Defendeur-Brave
-Grand Chevalier
-Petit Chevalier


Spanish Dragons

-Cauchador Real

[Captain Eleanor Hawke]

Middleweights

British Dragons

-Anglewing
-Bright Copper
-Longwing (acid spitter)
-Malachite Reaper
-Xenica (generally prefers female captains)
-Yellow Reaper


French Dragons

-Flamme-de-Gloire (fire-breather)
-Fleur-de-Nuit (night vision)
-Honneur-d'Or
-Papillon Noir (often painted to resemble Flamme-de-Gloire in battle)
-Pêcheur-Couronné
-Pêcheur-Râyé


Spanish Dragons

-Can't find any yet

[Captain Eleanor Hawke]

Lightweights


British Dragons

-Grey Copper
-Grey Widowmaker
-Greyling (courier)
-Sharpspitter (venomous, courier or scout)
-Winchester (light combat or courier)


French Dragons

-Chasseur Vocifere
-Pascals Blue (also seen in the British Isles)
-Poux-de-Ciel
-Plein-Vite (courier)
-Roi-de-Vitesse


Spanish Dragons

-Flecha-del-Fuego (fire-breather)

[Captain Eleanor Hawke]

Other Breeds, by nation:

Middle East
-Akhal-Teke (Turkey)
-Alaman (Turkey)
-Kasilik (fire-breather, Turkey)

Other European Powers
-Berghexe (Prussia)
-Mauerfuchs (Prussia)

-Ironwing (venomous bite, Russian)

-Lindorm (Scandinavia)

Asia
-Celestial (China)
-Imperial (China)
-Jade Dragon (China)

-Ka-Riu (acid spitter, Japan)
-Sui Riu (water spitter, Japan)

-Kiao (sea serpent sometimes found in the Atlantic and Indian Oceans)

The Americas
-Copacatia (acid spitter, Incan empire)
-Yupanqui (Incan empire)


Most characters  won't know about the breeds in this list unless they have made a study of dragon breeds and/or travelled to the lands where these dragons are found.
There are other breeds that are as-yet unknown to the Europeans, such as those in North America and others in the far east.

[Sir Barnaby Howard]

Helpful Links:

Greater descriptions of the dragons.

Even more descriptions of the dragons.

Portaits of all the dragons, with typical coloration and relative size. They correlate to numbers at the bottom.

A larger view of the portraits.
Some Roman names. Dragons in England are often given Latinate names.

A bit more of Roman names.

[Captain Eleanor Hawke]

This is a size chart for dragons.  From left to right we have:

Regal Copper
Celestial 
Kazilik
Longwing
Yellow Reaper
Winchester
Kiao


The Celestial, Kazilik and Kiao are not British breeds.