So I posted this on another story, where it was not as important but here it is:

_Supernatural Dictionary

Species: Serpents (original name has been lost )

Scientific name: Corniger Scala sp.

Coleration: mollted scales usally in a mix of an ombre of greens, blues, sometimes can be red, orange or yellow though it depends on gender ( as males are have darker color concentration then females )and where it lives. Both genders are roughly the same size.

Description: An ancient species that has existed in isolation for a millennia. Takes the form of a large serpent. Females are mistaken in human literature as gorgons or even as medusa herself. When appearing as a serpent rather than a humanoid form, females have fins used for swimming when laying eggs or for taking care of young until they are old enough to protect themselves on land. These fins also placed them in human myth and legends as sea serpents .Only females in their humanoid form sport serpent hair which likely is there for protection. Males in their serpent form do not have fins and are typically a bit larger. While both the male and female serpents have venom; the effect tends to differ. Only males have the ability to turn beings into "stone" with a bite; upon the site of the wound a calcifying agent is injected in to the body of a victim and slowly within 24 to 48 hours turns the victim into "Stone ". In reality the victim has not been turned to stone but rather calcifies like a stone baby or even animals found in Lake Natronl . This ability of turning creatures to stone is written in human myth as being performed by basilisk. A bite from a female will case the breakdown of most tissues and cause immense pain and damage to the body, death will occur in a few hours. The venom of a female can be likened to an extremely concentrated acetic acid .Because of this if a victim is bitten by a male and is given the venom of a female before death they will be cured and vice versa. Females are not affected by this the calcification of a male bite nor are male affected by the acetic acid like properties of the female.

In human history/ myth they were seen as evil (Christian myth ),As symbols of fertility ( Egyptian myth ) and even as gods ( Aztecs / Mayan ,myth ). In modern times there has animation, books and movies refereeing to creatures that are similar in appearance such as the movie Harry potter in the chamber of secrets.

Birthing / breeding: females are prone to miscarriages and death during childbirth; if a female has two children and is still healthy they are seen as a good breeders and therefor more desirable. Even so females stay fertile their whole lives and but, only conceive during breeding seasons .Can breed with certain species without genetic modifications such as dragons and daemons.

Culture: cast and clan system .

Extremely matriarchal

Official language(s) : Language of the serpents , Arabic, Nahuatl

Life span: 200- 400 years

Most closely related to: Dragons (Chinese Lung, Japanese lung, dragonkin and sea) , Water horses, Drakons, Cetea , wyverns ….

Mortal enemies: Man,

Diet : prefers fish and sea creatures but will eat land animals

In general they are very neutral species that tends to keep to themselves. They value family and children but, they are not social to those outside of family groups.

Places of origins: Americas, Egypt

Note : any references used I do not own