Skeletal reconstruction?

letstalkfish

Jack Dempsey
MFK Member
Feb 12, 2013
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To do "European style mounts" on deer heads (my father is a taxidermist), the first step in the process is to put them in a chickenwire type cage outside. This lets bugs eat away the flesh without letting mice and other critters run away with the bones.
 

houie925

Candiru
MFK Member
Nov 12, 2008
827
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Manteca, California
Remove whatever flesh you can then put the bones in a tub outside with a lid and a couple small holes in it. It will smell terrible so beware. Larder beetles will be drawn to it and their larvae will eat the remaining flesh. Final clean in a bleaching solution then glue/wire the bones how you like.
 

FLESHY

Polypterus
MFK Member
Jan 7, 2006
5,542
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Central Wisconsin
I would recommend against almost everything mentioned here other than the taxidermist option.

I was the first person at the university I work at to do fully articulated fish skeletons.

I also do skulls - mainly because they are easier.

I have received offers for my work to be sold in "oddities" stores, but for me the time and effort involved is just not worth it.

Buy yourself some dermestid beetles, now. Id recommend a site, but I cant. Ive seen them before at reasonable prices, so just do some searching.

Standard procedure is to freeze the animal for over 24 hours (make sure theres nothing on there that could hurt the bugs - or at least that is protocol at the university, probably not necessary with fish, but it helps keep the smell down if that bothers you for the next step).

Then clean all of the meat and skin off of the animal - I have a large custom dissection kit that I do this with. I literally scrape the meat off of the bones. This is not just filleting fish.

Then dry your fish out. I have a fume hood - you will probably need a hot, sunny day, a fan, and some way to keep the other bugs off of your fish. Maybe you can get away with this in a basement. You do not want other bugs to get into your culture and kill your dermestids. Magots will be TERRIBLE and DESTROY your skeleton. There is a chance with dermestids that you can keep it articulated without doing all that much.

Next you sit and watch the fish. The process will vary based on how well you cleaned the fish, the size of your dermestid colony, how hungry they are, etc. You need to keep a close eye on this. I usually let fish stay in there for between 24-72 hours for fish that are under 2'. (This does very, and the process is closely monitored)

Before you start to see bones coming loose, you remove the fish from the colony, and pick all of the adult beetles and larvae off that you can. Then you add it to another plastic container, and continue to watch it. In the full colony, the beetles will eat indiscriminately, destroying the things that keep bones together. If you remove the fish, the smaller larvae will go to the "choice" spots and continue eating the meat there instead of just eating wherever they can find a spot on the fish.

Again, after close monitoring, you will remove the fish again, remove all the adults and larvae you can, return them to your master colony, and then put the fish in the freezer for 24 hours to kill the remaining dermestids. Gently tap these into the trash, pick them off, blow them out - whatever you have to do.

Now, at this point, I go to work with that dissecting kit again, probes, tweezers etc - and start removing the little bits of skin that you couldnt, and the beetles couldnt get. By far the longest part of the process IMO. After you are satisfied with this, I add the fish to a solution of hydrogen peroxide that is equal to or less than 10% strength.

This is OPTIONAL - but will seriously help your fish look and smell better. Monitoring at this point must be VERY strict, and in my experience (again on those smaller fish) is that this process is under 12 hours, especially if you want any articulation at the end of it. I recently did a baracuda skull that I harvested in the keys for a spearfishing trip this past march, and went for a LONG time. It got real nasty in there, but man are those bones clean! The skull is also in a million pieces, and I lost a couple teeth. (Luckily teeth are in no short supply in a barracuda mouth ;) )

Watch it, watch it, watch it. Ive done a small Osphronemus gourami (less than four inches) and only lost a few ribs in a (about) 12 hour soak.

To those who would like your fish preserved. Take a good long look at how skin mount fish look after awhile. In my mind the artificial mounts (all you should need to provide are measurements and a picture) are better looking, last forever, and are lighter to move and mount. Just my .02 - as someone who has done skin mounts and seen a lot of other skin mounts get old.

Ill be watching this thread, and if I can help further I will.
 

Zoodiver

As seen on TV
MFK Member
Aug 22, 2005
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South FL
I wondered if you would see this thread. Haha

I do skulls/shark jaws mostly, but I do have a few piranha and puffer skeletons in the closet. Liquid chlorine or peroxide and water mix to soak. Brush away flesh slowly over a few days. Mine are kinda rough, nothing museum quality or anything.




 

cephalofoil

Jack Dempsey
MFK Member
Sep 17, 2013
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landlocked.
Aren't polypterus skeletons partially cartilaginous? They're in the subclass chondrostei like sturgeon. Dermestid beetles would most likely eat most of the axial and appendicular skeleton. The skull would be fine. I've seen people preserve portions of cartilaginous fish skeletons by manually removing flesh then freeze drying the cartilage. I'm not 100% on the details though and I've only seen shark neurocraniums and a paddlefish bill.

You usually see cartilaginous skeletons preserved in liquid...at least that's how I saw then in my zoology lab.

Sent from my Galaxy Nexus using MonsterAquariaNetwork App
 

Thelatinofishlover

Plecostomus
MFK Member
Oct 17, 2012
1,425
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Mexico City
Necrocanis used to do this with his catfish. He's busy with school and doesn't post often anymore, though.

When my tigers die (hopefully when they're big), I intend to have them mounted. Full mounts though, museum quality. :thumbsup:
i'd love to see that but not for many many more years
 

FLESHY

Polypterus
MFK Member
Jan 7, 2006
5,542
20
92
Central Wisconsin
I wondered if you would see this thread. Haha

I do skulls/shark jaws mostly, but I do have a few piranha and puffer skeletons in the closet. Liquid chlorine or peroxide and water mix to soak. Brush away flesh slowly over a few days. Mine are kinda rough, nothing museum quality or anything.




Matt - these are CLEAN. Looks good man. Seen way worse than that. Have some worse than that hanging in my room right now :D

Aren't polypterus skeletons partially cartilaginous? They're in the subclass chondrostei like sturgeon. Dermestid beetles would most likely eat most of the axial and appendicular skeleton. The skull would be fine. I've seen people preserve portions of cartilaginous fish skeletons by manually removing flesh then freeze drying the cartilage. I'm not 100% on the details though and I've only seen shark neurocraniums and a paddlefish bill.

You usually see cartilaginous skeletons preserved in liquid...at least that's how I saw then in my zoology lab.

Sent from my Galaxy Nexus using MonsterAquariaNetwork App
Hit it right on the head. Your ichthyology lab musnt have been that long ago either, based on whipping on "chondrostei" ;)

Drying would probably be your best bet - a lot of those things will shrivel and deform but I have had them around the lab just lying there and stuff like that holds up.

There is a very intricate/dense lattice work inside the rostrum of a paddlefish - and those clean up really nice. Not sure of the method, but we have them preserved at work and I have seen specimens like that behind the scenes at the field museum.

Outstanding post, FLESHY. Very well written and informative. I thoroughly enjoyed that read!
Thank you - come visit me in person and Ill talk your ear off on the subject. I should see if I can get out some of my old stuff and take some pictures...plus the "to do" pile. Not all fish either.
 

cephalofoil

Jack Dempsey
MFK Member
Sep 17, 2013
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landlocked.
Hit it right on the head. Your ichthyology lab musnt have been that long ago either, based on whipping on "chondrostei" ;)

Drying would probably be your best bet - a lot of those things will shrivel and deform but I have had them around the lab just lying there and stuff like that holds up.

There is a very intricate/dense lattice work inside the rostrum of a paddlefish - and those clean up really nice. Not sure of the method, but we have them preserved at work and I have seen specimens like that behind the scenes at the field museum.
it was actually "comparative chordate zoology" back in 2008. my university unfortunately doesn't offer ichthyology as a course very often so i never got to take it during my biology BSc.

if anyone is interested i attempted an articulation of an Oreochromis sp. in July. Problem was i broke a few pieces and some small pieces go washed down the drain during cleaning. Also the placement of the premaxilla is off. Or maybe the neurocranium isn't angled correctly. In any case it's far from perfect.

i did it manually by boiling the skull slightly then taking the flesh off using a dissection kit. boiling weakens bone so you have to be careful. most people degrease the bones in ammonia i think, or a solution of dawn dish soap at 85 F for however long it takes for the grease to come out of the bone. then people whiten in hydrogen peroxide. I didn't do the last 2 parts, i learned a lot though for next time!

the skull was ~35-40 pieces total. i lost 2 down the drain not including the otoliths, i didn't know where to place 2 which were most likely opercular in origin, and probably 1/3 of the teeth fell out when i attempted to degrease in soapy water.

IMG_20130704_152000.jpg


i have a good resource on Polypterus cranial anatomy for when i do my senegal skull, it's currently ill and i feel it's near the end of its life unfortunately. If anyone wants a copy of the pdf let me know!

IMG_20130704_152000.jpg
 
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