Classic tiger rat-  This is what I think of as the usual pattern you find.  I acquired my animals years ago and bred them a few times.  Both my snakes of this type are captive bred and raised by me.  This was the predominant pattern being imported a few years ago.  I am seeing more broad banded imports now.  Is this a locality issue or are they this diverse over their entire range?
High Yellow Tiger- These snakes have the classic tiger pattern but with a much greater amount of yellow speckling  added.  My pair are imports that I selected for the beautiful yellow pattern.  I find that imported tigers do pretty well if they are wormed.
Mexican Tiger-  This pattern I have only seen on a few animals outside of books.  They have an extremely high yellow pattern with lots of yellow on the head.  But they also have an additional set of orange stripes overlaid on the usual pattern.  My pair of these snakes has only gotten better as they grew up.
Broad banded Tiger- I have seen a lot of these come in recently.  Some are pretty and some aren't.  They have a few broad yellow bands on the from half of their body with the back half mostly black.  I believe the hatchlings of this pattern do not have the banded pattern at birth but I am not sure.  From the information below this sounds like pullatus pullatus.	picture needed
Speckled Tiger-  On these animals the yellow pattern is reduced to a thin dorsal stripe and some speckling on the from half. These snakes are the least appealing to me.  I believe that this pattern comes from the far southern part of the range and is related to thermoregulation.  But like many things I believe I have no proof and I am interested in facts or collection data either way.	picture needed

anomalepis- loreal scale absent; irregular spots, sometimes broken, sometimes forming rings; found in southeastern Brazil.

argusiformis- loreal scale present; reticulate black and yellow pattern; found in Tela, Honduras.

maculatus- loreal scale absent; regular, subrectangular, transverse yellow spots; found in Sao Paulo, Brazil.

mexicanus- loreal scale present; yellow markings very variable; occurs southward from the Mexican state of Tamaulipas to Guatemala and Honduras.

pullatus- loreal scale present; obligue yellow streaks on a black dorsum, usually best defined anteriorly; posterior may be weakly streaked or ringed; found from Costa Rick to northern Argentina, including Trinidad and Tobago.