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Morph: Brindle Black Ratsnake
Eyes: Orange/brown iris with a black pupils


History: The first Brindle Black Ratsnake was collected was in 1974 near Macon Georgia in the area of interegration. It could not with any certainty be identified as either subspecies and didn't have the characteristics associated with an intergrade. Dr Bern Betchel obtained the animal on breeding loan from the Savannah Science Museum and successfully demonstrated that it's colour and pattern where the result of a autosomal recessive gene mutation.

The first breeding in 1977 with a wild type black ratsnake resulted in seven wild type hatchlings. Of these three were kept for future breeding.
F1 crosses in 1980 resulted in eight wild types.
A cross in 1981 between the original male and an F1 daughter resulted in eight wild type and one brindle.
An F1 cross in 1983 resulted in eight wild types and one brindle.
Subsequent matings produced ratios between brindles and wild types consistent with the classic mendalin ratio seen with recessive mutations.

Betchel also bred the brindle to a T+ Albino Black Ratsnake to learn if the Brindle mutation could be caused by another allele at the Albino locus. This mating produced nine eggs and all hatchlings were wild type. Betchel commented on these hatchlings as looking somewhat hypomelanistic in appearance, but concluded that the brindle is not an Albino.

Appearance: Hatchlings are tan with reddish blotches as they mature they develop patches of faded black pigment and some white flecking may be present on the edges of the scales.

There is some debate as to whether the Brindle mutation is sex linked but there is no evidence at present to support this.

Whitesided Brindle Black Ratsnake, Albino Brindle Black Ratsnake

 rnocera - (1,2,4,5,6)
Chaz - (3)
This site has information on the following genera of Ratsnakes ... Spilotes, Spalerosophis, Ptyas, Zamenis, Elaphe, Rhinechis, Senticolis, Pseudelaphe, Pantherophis, Bogertophis, Orthriophis, Gonyosoma, Oreocryptophis, Oocatochus, Euprepiophis, Coelognathus, Archelaphe