Rotifer Euchlanis -**Correction Lepadella**

[rnabholz]

From a pond sample.

AO One Ten, 40x Plan Achro, afocal using a Nexus 6 phone.

[75RR]

Nice video. Structure clearly visible.

Have you considered getting a camera that does not ring! ;)

[actinophrys]

This is a nice detailed video. It isn't actually a Euchlanis, though, but rather a Lepadella. They have been mislabeled enough times on-line that it's easy to be misled, an unfortunately self-perpetuating problem, but are fairly easy to tell apart once you know the difference:

• In Lepadella the foot is inserted into a distinct notch on the underside of the lorica. It's relatively thin and flexible, with marked rings and short toes. They also have two eyes toward the sides of the head, which are subtle but you can see at times here.
• In Euchlanis the lorica is separated into dorsal and ventral plates with a gap, and the foot emerges from between them. It has a more tapered shape with prominent toes, and it seems can't curve forward like you see here. There's only one eye in the centre of the head.

In case it might be useful, some pages that show the difference are lukem's sketches, the zooplankton key from UNH, and Shiel's guide to Australian species (plus hopefully my own page). Despite the similar over-all shape, they're actually from different families, although it would be an exaggeration to say the relationships are really understood.

[KurtM]

Have you considered getting a camera that does not ring!

If my camera captured images like Rod's, I wouldn't care if it gonged.

[gekko]

Nice video. Very nice, but I must admit, nowhere near the exceptional beauty of your Stentor DF video .

[rnabholz]

This is a nice detailed video. It isn't actually a Euchlanis, though, but rather a Lepadella. They have been mislabeled enough times on-line that it's easy to be misled, an unfortunately self-perpetuating problem, but are fairly easy to tell apart once you know the difference:

• In Lepadella the foot is inserted into a distinct notch on the underside of the lorica. It's relatively thin and flexible, with marked rings and short toes. They also have two eyes toward the sides of the head, which are subtle but you can see at times here.
• In Euchlanis the lorica is separated into dorsal and ventral plates with a gap, and the foot emerges from between them. It has a more tapered shape with prominent toes, and it seems can't curve forward like you see here. There's only one eye in the centre of the head.

In case it might be useful, some pages that show the difference are lukem's sketches, the zooplankton key from UNH, and Shiel's guide to Australian species (plus hopefully my own page). Despite the similar over-all shape, they're actually from different families, although it would be an exaggeration to say the relationships are really understood.

Thank You Actino.

I really appreciate you taking the time to educate me on these. I am still struggling to find a definitive resource for ID, so I make a concerted effort, put my conclusion up and hope that good natured people like you will save me from embarrassment! I think I was a GoogleVictim on this one. My books were not too helpful so I turned to the Big G.

I will investigate the references you provide above and bookmark them for future use.

Thanks again,

Rod

[rnabholz]

Nice video. Structure clearly visible.

Have you considered getting a camera that does not ring!

Hey 75,

I got lots of cameras....too many, but none beat this dang phone so far.

I know you were just funnin' me but these are the cool parts.

1. 13 megapixel sensor - slightly reduced if I zoom as it is totally digital, no room for moving lens elements
2. Full 1080p HD Video
3. HDR capable - High Dynamic Range which basically extends the dynamic range the sensor can capture to avoid blow outs of the brights and blocking up of the blacks- really useful for this pursuit - especially dark field
4. Relatively lightweight -really nice for afocal use
5. 6" full HD screen for monitoring focus and exposure and even tracking a moving subjects.
6. Wifi Capable- I can dump all of the images from the session off the phone to my home network 3TB storage device without ever touching a memory card.

I owned it before I got started with Microscopy and it has turned out to be a great tool.

But the number one reason it beats a camera - I can read MicrobeHunter.com on it!

Rod

[rnabholz]

Have you considered getting a camera that does not ring!

If my camera captured images like Rod's, I wouldn't care if it gonged.

Hey Kurt - I can make it gong, beep, siren, chime, belch, trumpet, whoosh, play bluegrass, scream, boom, ding dong, shave and a haircut, wolf whistle..........

[rnabholz]

Nice video. Very nice, but I must admit, nowhere near the exceptional beauty of your Stentor DF video .

Alright Gekko - I am going back to the lab and I will get out the dark field filter and scan a couple of slides. I'll see what I can do ;^)

[kit1980]

From a pond sample.

AO One Ten, 40x Plan Achro, afocal using a Nexus 6 phone.

Do you use an adapter or tripod to position the phone?

I have a Nexus 5X and after watching your video video I'm thinking it could outperform ToupTek UCMOS14000KPA TP614000A I currently use.

[Johann]

Great video Rod - I agree, nothing beats the phone camera for convenience