Sexing Pics.

[guidofatherof5]

I put these diagrams together to help with the identifications.

[ConcinusMan]

T. ordinoides. FEMALE 13 inches. Notice her thickness changes immediately after the vent. Tail is short. Indicates female. With ordinoides, females tend to have thick bodies (even when not gravid) while males are slim. Females also get much larger than males. Older adults near max size are easy to sex on first sight.



Another T. sirtalis concinnus. MALE 26 inches. Vent at red arrow. Notice the thickness of the snake doesn't immediately change after the vent and his tail is very long. Indicates male. Females vent to tail tip distance is much shorter for a snake of the same size. Females tend to have broader heads than males. In the wild, the very large concinnus (38-42 inches) have always been female in my experience.

[gregmonsta]

Plains garter, Thamnophis radix, female, 2 years old.

[gregmonsta]

I had moved mine, here they are again -

Male Red-sided garter snake, Thamnophis sirtalis parietalis, 24 inches (1.5years old at time of photos).





Sangrius, Thamnophis sirtalis concinnus, 3 years old. Male.

[ConcinusMan]

I put these diagrams together to help with the identifications.

Rod Hardman's pics from facebook also make good reference so I combined them.

[guidofatherof5]

With all the births happening this may be a good time to post some sexing posts. Please.
Please be sure to follow the guidelines in post #1

[joeysgreen]

I might also suggest including scale counts, particularly of the subcaudals. Another useful measurement is the tail length. This can be expressed by percentage of total length.

[ConcinusMan]

I put these diagrams together to help with the identifications.

That should read "this is where the hemipenes are kept" There's two of them, remember? Funny... they only have one one working lung, but they have a backup when it come to reproduction. I guess we know where their priorities lie, huh? lol