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PZ Myers is a biologist and associate professor at the University of Minnesota, Morris.
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« Conservapedia has a friend | Main | Who'd have thought geology and paleontology and cooking would go together so well? »

Friday Cephalopod: So cute, you just want to kiss it

Category: CephalopodsOrganisms
Posted on: February 23, 2007 6:00 AM, by PZ Myers

nautilus_pompilius.jpg
Nautilus pompilius

Figure from Cephalopods: A World Guide (amzn/b&n/abe/pwll), by Mark Norman.

Comments

#1

Posted by: Shalini | February 23, 2007 6:31 AM

Awww.....I want it as a pet.

#2

Posted by: weemaryanne | February 23, 2007 7:06 AM

Uh - kiss it where?

#3

Posted by: llewelly | February 23, 2007 7:08 AM

It's a protostome. It uses that opening right there in front for everything.

#4

Posted by: beepbeepitsme | February 23, 2007 9:00 AM

That is one beautiful looking creature. Weird, but beautiful.

#5

Posted by: beepbeepitsme | February 23, 2007 9:03 AM

It's body looks like it is made from cream silk, custard apple segments, and carved pumice stone. (I should be a fashion designer..)

#6

Posted by: Evolving Squid | February 23, 2007 10:26 AM

Ok, WHAT is it? My limited grasp of cephalopod biology tells me that it is some kind of nautilus viewed face-on?

#7

Posted by: Fastlane | February 23, 2007 10:34 AM

The nautilus has always been one of my favorites. :-)

I found a nautilus shell once on a scuba dive.

Cuttlefish also hold a special place in my dark, evil, heart.

Cheers.

#8

Posted by: Evolving Squid | February 23, 2007 10:40 AM

Hmm, my keen powers of observation (i.e. I read the latin name underneath the picture... heh) confirm that it is, indeed, a nautilus.

#9

Posted by: Steve_C | February 23, 2007 10:41 AM

Is it covered in eggs or foam of some sort?

#10

Posted by: PZ Myers | February 23, 2007 10:51 AM

No, here's a side view. That's what they normally look like.

#11

Posted by: Steve_C | February 23, 2007 11:08 AM

Ah. Sheathes in a way for the... tendrils?

I should wiki and learn more.

#12

Posted by: CaseyL | February 23, 2007 12:05 PM

Holy guacamole. What an amazing critter.

I had no idea nautilii had such... odd decolletages. I thought they were basically squids-in-shells, and what came out of the shell were the eyes and tentacles. Now it seems they have a flap or sheath or something for each tentacle (as the linked side-view photo seems to indicate)?

Is this one only half-deployed?

Oh, and what's that yellowish, rather phallic-looking thungummie right above the all-purpose opening, there?

#13

Posted by: Colugo | February 23, 2007 2:07 PM

I always had a soft spot for spiral-shelled cephalopods - nautiluses, ammonites, and argonauts.

#14

Posted by: Chinchillazilla | February 23, 2007 4:06 PM

If I had a nautilus, I would name him Captain Nemo.

Because I can, that's why.

Hush.

#15

Posted by: Anton Mates | February 23, 2007 5:29 PM

It's a protostome. It uses that opening right there in front for everything.

No, protosomes have two main holes just like us; we merely switched their roles.

The cephalopod anus is tucked away in the mantle cavity, but it's there.

#16

Posted by: David Marjanović | February 23, 2007 8:15 PM

No, protosomes have two main holes just like us; we merely switched their roles.

There is no switching. In protostomes the blastopore usually closes in the middle and forms the whole digestive tract that way; in deuterostomes it becomes the anus only, and the mouth is new. In vertebrates, incidentally, the caudal neuropore closes over the blastopore, and the anus forms later, independently.

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