INTERGENERIC Reptilian Hybrids & F1 Inter/Fertility

most of us already know of a whole slew of interspecies hybrids out there and that produce perfectly fertile & interfertile offspring, being so closely related except for being essentially geographically isolated groups of virtually the same animal aside from coloration & other minor differences in phenotypical features.

but what about interGENUS reptiles? are there many out there? any naturally occuring ones (ie, in mammals the channel islands' wolf X fox (Canis X Vulpes) have apparently been hybridizing for millenia? (Isis: Zeitschrift für alle naturwissenschaftlichen Liebhabereien, 1881)

only interGENUS snakes i can think of are (Boa X Eunectes) and turtles i can think of are (Graptemys X Trachemys), and in either case have not read of any reported interfertility but in both cases wouldnt be surprised if they such progeny reliably fertlle back to either parentage as well as interfertile between other F1.

are there any intergeneric tortoises? lizards out there? are their offspring interfertile?

i'm opposed to human hybridization even though it's likely widespread behind closed lab doors already given advances in genetic engineering (ie, splicing. but not necessarily to animal hybridization via breeding (or maybe even splicing to revive or strenghten endangered/extinct species' lines) since it helps potentially identify any need for refining scientific nomenclature; ie, if 2 reptiles or whatever are in totally different genera or even subfamilies(!)yet reliably interfertile (thus closely genetically related)
then why were they classified as such different animals nomenclature-wise?

Graptemys X Trachemys.. would u be surprised if such F1s are interfertile?
http://www.austinsturtlepage.com/wor...les/index.html

https://www.youtube.com/watch?v=sNBLeJx2S6s

There are actually a bunch of intergeneric hybrids in snakes.
Ball pythyon x Carpet python (python x morelia)
There are also some hybrids from other python species (simalia x morelia?)
And if Green tree pythons get moved back to Chondropython then the Carpondros will be intergeneric again.

The North American colubrids have a bunch. Some even found in nature. All have been more or less fertile, and have been bred for multiple generations and multi species
Kingsnake x gopher snake (Lampropeltis x Pituophis) This has been found in nature
Kingsnake x Ratsnakes (Lampropeltis x Panthrophis)
gophersnake x ratsnake (Pituophis x Pantherophis)
I think there even have been King x Ratsnake x gophersnake

Most if not all of the hybrids listed have been fertile.

I am sure there have been more, I am just not an expert on them.

nice list! goes to show at least lots of snakes in the same subfamily are pretty much interfertile and their progeny fertile as well, thus quite closely genetically related; no extreme genetic drift!

what about interfertile intergeneric tortoises? lizards out there?