Morphology refers to the specific body sub-types found among the dragon types on Dragon cave. Each morphological type is identified by particular physical characteristics. Morphology generally does not restrict breeding behavior, or game mechanics such as Vampire biting, though it does sometimes have gameplay impacts for features such as the monthly raffle. Additionally, each morphological group has a unique Undead Dragon sprite. Breed morphologies can be found in the Dragon Encyclopedia.
Amphipteres[]
Amphipteres are winged serpents. They usually have a long, snake-like body, one or more sets of wings, and no other limbs.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Aeria Gloris Dragon | 
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| Garland Dragon | 
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| Hydrophidius Dragon | 
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| Iridichi Dragon | 
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| Magnesium Amphiptere Desert variant shown |
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| Mirisia Amphiptere | 
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| Lacula Dragon | 
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| Skystrider Dragon | 
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| Skywing Dragon | 
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| Sunsong Amphiptere | 
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| Two-Finned Bluna | 
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| Undead Dragon
Amphiptere variants |
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| Wintertide Dragon | 
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Drakes[]
On Dragon Cave, drakes are a separate species to dragons, making them incapable of cross-breeding with other dragon types. Unlike dragons, which may have many morphological classes within a type, drakes share a common morphology. They are defined by being quadrupedal, with leathery wings, and having antlers.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Glaucus Drake | 
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| Greater Spotted Drake | 
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| Honey Drake | 
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| Howler Drake | 
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| Moonglow Drake | 
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| Morphodrake | 
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| Ochredrake | 
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| Pseudo-Wyvern Drake | 
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| Sabertooth Bull Drake | 
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| Spotted Teal Drake | 
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| Sunbeam Drake |
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| Tarantula Hawk Drake | 
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| Tatterdrake | 
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| Undead Dragon
Drake variant |
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| Vremya Drake | 
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Eastern dragons[]
Eastern dragons are quadrupedal dragons with long, sometimes serpentine bodies and no wings. Typically, they will also have antlers, a furry mane or ruff extending down the neck or back, and two long whiskers.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Almerald Dragon | 
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| Amarignis Dragon | 
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| Aqualis Dragon | 
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| Blancblack Dragon | 
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| Bolt Dragon | 
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| Cloudplume Dragon | 
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| Gemshard Dragon
Sapphire variant shown |
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| Heartstealing Dragon | 
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| Kyanite Pygmy | 
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| Labradorite Dragon | 
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| Lihnseyre Dragon | 
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| Melismor Dragon | 
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| Scourgekeeper Dragon | 
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| Shimmer-scale Dragon
Gold variant shown |
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| Silver Dragon | 
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| Striped River Dragon | 
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| Thundersnow Dragon | 
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| Undead Dragon
Eastern variants |
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| Venturis Dragon | 
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Lindwyrms[]
Lindwyrms are bipedal dragons, with only a set of forelimbs and a long, serpentine body. Though lindwyrms typically have one or more sets of wings on Dragon Cave, the traditional definition is usually wingless.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Blusang Lindwyrm | 
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| Ciriax Lindwyrm
Blue variant shown |
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| Elux Lucis Dragon | 
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| Erador Lindwyrm | 
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| Kovos Pygmy | 
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| Paper Dragon | 
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| Pryanost Lindwyrm | 
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| Risensong Dragon | 
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| Script Dragon | 
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| Seawyrm Pygmy | 
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| Setsong Dragon | 
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| Tideweaver Lindwyrm | 
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Lindwyrm variants |
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Sea serpents[]
Sea serpents have long, snake-like bodies, and have flippers or fins in place of limbs or wings. These dragons are typically aquatic, though this group also includes Stratos Dragons, which are known to be unable to swim.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Baikala Dragon
Blue variant shown |
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| Deep Sea Dragon | 
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| Lotaan Dragon | 
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| Sapo Dragon | 
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| Shallow Water Dragon | 
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| Stratos Dragon
Dawn form shown |
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| Undead Dragon
Sea serpent variants |
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| Water Dragon | 
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Western dragons[]
Western dragons are the most populous morphological class on Dragon Cave. These dragons are defined as winged quadrupeds, and frequently have horns.
Wingless dragons[]
Wingless dragons are quadrupedal dragons with no wings. Though sometimes similar to eastern dragons, wingless dragons usually have a shorter and stockier torso than easterns. Some wingless dragons have vestigial wings.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Aegis Dragon | 
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| Aranoa Dragon | 
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| Ash Dragon | 
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| Dark Green Dragon | 
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| Dorsal Dragon | 
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| Fell Dragon | 
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| Furor Pygmy | 
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| Leodon Dragon | 
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| Magma Dragon | 
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| Mint Dragon | 
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| Sweetling | 
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| Terrae Dragon |   
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| Undead Dragon
Wingless variant |
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| Water Walker Dragon | 
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| Waterhorse Dragon | 
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| Wisteria Dragon | 
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| Xol Dragon
Blue variant shown |
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Wyrms[]
Wyrms lack any type of limbs, giving them the most snake-like appearance of any morphological group. Though they frequently have horns or spikes on their heads and bodies, these traits are not required.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Aquilo Xenowyrm | 
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| Aso Xenowyrm | 
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| Astrapi Xenowyrm | 
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| Chrono Xenowyrm | 
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| Gaia Xenowyrm | 
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| False-Headed Hydra Dragon Coast variant shown |
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| Glystere Wyrm | 
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| Ke’maro Xenowyrm | 
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| Mageia Xenowyrm | 
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| Obidar Xenowyrm | 
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| Omen Wyrm | 
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| Oracle Wyrm | 
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| Pharos Xenowyrm | 
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| Pyro Xenowyrm | 
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| Red-Tailed Wyrm | 
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| Rift Wyrm | 
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| Staterae Xenowyrm | 
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| Temple Wyrm | 
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| Thalassa Xenowyrm | 
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| Umbra Xenowyrm | 
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| Undead Dragon
Wyrm variants |
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Wyverns[]
Wyverns are winged, bipedal dragons. Unlike lindwyrms, which have only a set of forelimbs, wyverns have only a set of hindlimbs. Their wings may be either feathered or leathery.
| Dragon breed | Sprites | |||
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| Egg | Hatchling | Mature Hatchling | Adult | |
| Aeon Wyvern | 
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| Aether Wyvern | 
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| Alcedine Wyvern
Blue variant shown |
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| Avin Pygmy | 
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| Bright-Breasted Wyvern | 
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| Cantormaris Dragon
Mundus variant shown |
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| Carmine Wyvern | 
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| Coastal Waverunner | 
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| Copper Dragon
Liver of Sulfur |
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| Coral Pygmy Wyvern | 
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| Falconiform Wyvern | 
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| Fever Wyvern | 
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| Flamingo Wyvern | 
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| Iris Floret Wyvern
Gold variant shown |
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| Floret Wyvern (Alstroemeria)
Pink variant shown |
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| Galvanic Wyvern | 
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| Ghanser Dragon | 
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| Golden Wyvern | 
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| Hellfire Wyvern | 
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| Kohraki Dragon | 
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| Lightning Pygmy | 
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| Luminox Dragon | 
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| Magelight Pygmy | 
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| Mimic Pygmy | 
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| Nebula Dragon | 
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| Nhiostrife Wyvern | 
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| Pyropellis Wyvern
Orange variant shown |
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| Razorcrest Wyvern | 
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| Sakuhana Wyvern | 
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| Scimitar-wing Wyvern | 
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| Serrati Wyvern | 
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| Spinel Wyvern
Violet variant shown |
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| Spirit Ward Dragon
Day form shown |
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| Tri-Horn Wyvern | 
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| Tsunami Wyvern | 
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| Undead Dragon
Wyvern variants |
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| Vermeil Dragon | 
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