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Hi Indah,</div>
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First off, thank you for bringing this subject up. I too am relatively new to the Ichthyology collection I work at. Recently we had a biologist visit our collection to view some filter feeding specimens, one of which was a juvenile
<i>Rhincodon typus</i>. As this is a rare species in our collection, I was concerned to find a similar
<b>white growth </b>on the specimen.</div>
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Dirk's advice to use a brush and a mild detergent with warm water worked very well (Thanks Dirk!). The white growth was safely removed with a gentle hand. To avoid this recurring, I have made sure to sanitize the container to remove any possible contaminants,
and replace the old EtOH with fresh 70% EtOH.</div>
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Unfortunately, I did not have the foresight to take a before and after photo.</div>
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Hopefully, you find success with Dirk's advice on removing the white growth.</div>
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Thanks again, and good luck!</div>
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Cheers,</div>
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John</div>
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<p style="margin-top: 0px; margin-bottom: 0px;" class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><img style="width: 109px; height: 110px; max-width: 672px; margin-top: 0px; margin-bottom: 0px;" height="110" width="109" src="https://projects.rom.on.ca/graphics/new_rom_logo.png"></span></p>
<p style="margin-top: 1em; margin-bottom: 1em;" class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><b>John Furlone</b><br>
Collections Technician (Fishes)<br>
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100 Queen's Park<br>
Toronto, ON M5S 2C6</span></p>
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<p style="margin-top: 1em; margin-bottom: 1em;" class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">ROM acknowledges that this museum sits on
the ancestral lands of the Wendat, the Haudenosaunee Confederacy, and the Anishinaabek Nation, which includes the Mississaugas of the Credit First Nation, since time immemorial to today.<br>
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Le ROM reconnaît que le Musée est situé sur les terres ancestrales des Wendats, de la Confédération des Haudenosaunee et de la Nation Anishinabek, y compris la Première Nation des Mississaugas de Credit, et qu’ils occupent ces terres depuis la nuit des temps.</span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> on behalf of Indah Huegele <indahhuegele@isu.edu><br>
<b>Sent:</b> August 19, 2025 3:34 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> [Nhcoll-l] Mold or fungal growth in herpetology collection</font>
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<div>Hello everyone,</div>
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<div dir="auto">I was wondering if I could get feedback on some scary-looking growths on a few herpetology specimens in our collection (photos attached here). Any thoughts on what these residues are and/or advice on how to treat them would be much appreciated!</div>
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<div dir="auto"><b>Orange-brown bumps.<i> </i></b><i>(images 143927 and 143900) </i>
There are small, orange-brown, round bumps on one specimen that has had its tail exposed from fluid levels that are too low. I completely replaced the ethanol for this specimen and tried to gently scrape off the growth, but most of it was quite dried on, so
I left it soaking in fresh 70% ethanol for the time being. Is this definitely fungal? Should I try to scrape the rest of the growth off the specimen's tail or leave it alone?</div>
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<div dir="auto"><b>White layer of residue.</b> <i>(all other images) </i>On a few salamander specimens, there is this opaque, white layer of residue. This is occurring on salamander specimens that are completely submerged in ethanol. (However, I am not sure
what the concentration of this ethanol is or the last time that it was changed out; I worry it might have lost ethanol concentration over time.) Any thoughts on what this might be and how to treat it? </div>
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<div dir="auto">I took over this collection a few months ago, so I am still discovering issues with specimens. I appreciate any suggestions that you folks have to offer on how to help these poor specimens!</div>
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<div dir="auto">Thanks,</div>
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<div dir="auto">Indah</div>
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<p style="margin-top:0px; margin-bottom:1rem; color:black; font-family:Roboto; font-size:12px">
<span style="font-size:14px; font-weight:bold">Indah B. Huegele, PhD<br>
</span>Life Sciences Collection Manager | Idaho Museum of Natural History</p>
<p style="margin-top:0px; margin-bottom:1rem; color:black; font-family:Roboto; font-size:12px">
Museum Bldg | Room 220<br>
921 S 8th Ave, Stop 8096 | Pocatello, Idaho 83209<br>
(208) 282-2815 | <a href="mailto:indahhuegele@isu.edu" target="_blank">indahhuegele@isu.edu</a></p>
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