Shout out to any Dumeril’s keepers/breeders.
I have a question regarding growth. A couple years ago I was given the opportunity to acquire a couple dummy boas. I jumped, of course. Doing research on the species, I found references that say that they can reach 4.5 m in length. Uhuh, right and retics get 10 m. The big red TFH book. If anybody is wondering. I have personally seen a couple that were 7+ ft long and a few in the 5-6 ft range. I’m not sure if they are sexually dimorphic regarding adult size. They were 114 and 128 grams when I got them and 391 and399 grams at 1 year old. Last weight was 574 and 582 grams (Jan 24/25)
Like I always do when acquiring any species, I got two females. Males are purchased a year or two later. I bought them used. Second hand(?)Lol. That is, I got them from someone who got them from the breeder. He didn’t have any info on the parents, afaik.
Now, the two I have were born March 23 2023 so they are 2+ y.o. They have never had any issues (other than one of them repeatedly deciding that her cage is optional)but at 2+ y.o. they are @3 ft long. Is this average for two year old females? Or do I have males? I have heard/read that there are dwarf lineages but, again, not so sure of that.
They are kept in grow out racks with a warm side 30°C, cool side 24°C and non- shedding humidity of 50% with a bump to 65% when blue. Plus, damp rags in their hides. Both are fed large mice or small rats every ten days and have never refused food. Both are well proportioned and, imo, look good.
To the point- Is three ft long a normal size for a two year old?
They fed last night(May 24) so pics in a day or two.
I owned a few dumeril boas. And breed them once. Dumerils get 7 to 8 feet long.
Madagascar ground boas get 4.5 m.
Dumeril boas might get 2.5 m.
My Dumeril boas were over 7 feet long and 30 lbs each. I don’t have them anymore.
I’m not sure if you know, but don’t house them together as Dumeril boas are cannibalistic.
Yours looks like a good size for a 3 year old one to me. All boas are like people some will grow quicker and bigger than others.
Here is a link to some old pictures of them.
They look really good to me. I just wondered if they were under size for their age. I found info somewhere that they are slow steady growers unlike many pythons which grow rapidly, slow down then another rapid growth growth spurt.
So, they probably are a good size. They never refuse food. Anything offered so far has been mugged and eaten.
I have no doubt they would try eat each other. They’re like kingsnakes that way.
My big male would only eat 3 to 4 times a year. I would feed him 1 adult guinea pig or a 3 to 5 lbs. rabbit. In the winter he would not eat
I don’t keep Dumerils, but given that they’re boas, I’d presume their growth rate is a good deal slower than pythons. My BI has been growing absolutely glacially compared to how quickly my blood python grew up. Those are the only two species I’ve raised, and the difference in their growth rates is pretty crazy. My blood python was already a pretty impressive snake at 2 years old. Meanwhile, my 2-year-old boa is currently no more impressive than our local gopher snakes. ![]()
With bloods, I noticed, they start out as a pudgy little coffee cream rat disposal. Then @ a year or so they seem to stall. At @ 2.5-3, one day you go to clean and there’s a huge red and cream blob flattened out in their cage wanting a rabbit.
That sounds about right. ![]()
Beautiful T+.





