That Aristotle’s lantern tho

Made with Instagram

Horned Sea Star (Protoreaster nodosus)

Also known as the Chocolate Chip or Knobbed Sea Star, the horned sea star is a species of oreasterid sea star that occurs in warm, shallow waters in the Indo-Pacific. Like many other sea stars P. nodosus is an opportunistic carnivore and will feeds mainly on sessile invertebrates and other slow moving invertebrates. The “horns” which give P. nodosus its common name are used mainly to deter potential predators by making it look less palatable.


Animalia-Echinodermata-Asteroidea-Valvatida-Oreasteridae-Protoreaster-P. nodosus

Images: Kareji and Marta Maria Rubio Texeria


Banded sea urchin - Echinothrix calamaris por Alexander Semenov


“Chocolate Chip Sea Cucumber” (Isostrichopus badionotus)

Also known as the Cookie Dough Sea Cucumber, the chocolate chip sea cucumber is a species of Stichopodid sea cucumber which is commonly encountered throughout the western Atlantic Ocean, occurring from North Carolina to the Caribbean and south to Brazil, individuals also occur in western-central Africa. Chocolate chip sea cucumbers typically occur in shallow waters with a wide variety of substrates (sand, mud, rock, etc..). Like most sea cucumbers, I. badionotus is a detritivore combing the sea floor for any detritus it encounters. 


Animalia-Echinodermata-Holothuroideaia-Aspidochrotida-Stichopodidae-Isostichopus-I. badionotus

Images: Hans Hillewaert and Iaszlo-photo


Field trip to Bodega Bay (1/26/14) Finale: My favorite pictures from the day

1) Bat Star and Pisaster right next to each other, with Pisaster’s tube feet visible. Pisaster was more prevalent where there more waves, since it mostly ate mussels, while the bat stars ate more algae, which grew with less waves, so it was cool to see them both right next to each other

2) Scyphozoan Jelly on the mudflats. The red spots are eyespots. We thought the fluffy tan things in the middle might be the oral arms retracted in for low tide. We also thought it (and all the others we found) were dead, but then we put them in a bucket and they were fine. (One thing I learned on this field trip was that cnidarians can in fact survive on the coast at low tides.)

  • Kingdom: Animalia
  • Phylum: Echinodermata
  • Class: Echinoidea

Sand dollars are flattened and disk-shaped and have five rows of tube feet which allow for extremely slow locomotion. The narrow elongated holes in the sand dollar test (shell) are lunules, which serve as channels to help move food from the aboral surface to the oral surface and the mouth. 

Photograph from:

Labidiaster annulatus

…is a species of Heliasterid sea star which is distributed around the Antarctic Peninsula, South Georgia and the South Sandwich Islands, where it occurs in the intertidal zone. Like other large starfish Labidiaster annulatusis a opportunistic predator and scavenger, feeding on a wide range of food items. It is known to feed by climbing to an elevated position (like the top of a rock or sponge) and extending its arms out like fishing rods, grabbing any prey items that swims by.


Animalia-Echinodermata-Asteroidea-Forcipulatida-Heliasteridae-Labidiaster-L. annulatus

Image: WereSpielChequers

so my marine science teacher was a meme for every student that had him. he had my friend and i make shirts with tardigrades on them for an extra 30 points on the final “shell quiz”. he has a ridiculously huge collection of seashells and one time i witnessed him drop his only duck clam on the floor. it shattered and i swear that man was about to cry.
he also had this habit of over-pronouncing words and yelling random phyla. like we’d be watching a video and he’d yell “ECHINODERMATA” or “ECHINOIDEA” etc. he also showed us a video of a whale exploding, and a video of this guy screaming for a solid 30 seconds while he was shoulder deep in sand trying to find a snail.
boy oh boy i have so many stories

“Sea Potato” (Echinocardium cordatum)

…a species of Loveniid sea urchin which boasts a mostly cosmopolitan distribution. Where it occurs in temperate seas in the north Atlantic, west Pacific, around Australia and New Zealand, as well as South Africa. Sea potatoes are often seen on sandy sea beds, where they will bury themselves constructing small burrows which are lined by mucus secretions. Detritus and other nutrients will collect on these secretions, and made their way to the central area of the burrow, where the sea potato will feed on them. Sea potato burrows are known to house a wide range of commensals, especially the bivalve Tellimya ferruginosa.


Animalia-Echinodermata-Echinoidea-Spatangoida-Loveniidae-Echinocardium-E. cordatum

Image: Hans Hillewaert

Just wanted to do a simple postmortem recap of my designs for Dimetrodone ‘s  30 Day Phyla Challenge (including some redesigns). It was a fun experience and I spent more time doing research than actually drawing, but I’m still pretty happy with most of my designs! I had multiple designs for Nermertea (2), Annelida (5), Mollusca (4), and Echinodermata (2), so I just chose my favorite designs in those cases.

1. Porifera
2. Placozoa
3. Ctenophora
4. Cnidaria
5. Dicyemida
6. Chaetognatha
7. Platyhelminthes
8. Cycliophora
9. Gastrotricha
10. Rotifera
11. Micrognathozoa
12. Entoprocta
13. Bryozoa
14. Branchiopoda
15. Nemertea
16. Phoronida
17. Annelida
18. Mollusca
19. Priapulida
20. Loricifera  
21. Kinorhyncha
22. Nematoda
23. Nematomorpha
24. Arthropoda
25. Onychophora
26. Tardigrada
27. Xenacoelomorpha
28. Echinodermata
29. Hemichordata
30. Chordata

Super-duper special thanks to dimetrodone for creating the challenge! It was educational, fun, and…well, challenging!

Green Sea Urchin (Psammechinus miliaris)

also known as the Shore Sea Urchin, the green sea urchin is a species of Parechinid sea urchin which is known to occur in in shallow areas of the Atlantic Ocean and the North Sea. Ranging from Scandinavia south to Morocco, but not in the Mediterranean Sea. Green sea urchins are typically found in association with Saccharina latissima or among other kelp/seaweed, rocks and other hard substrates. P. miliaris is an omnivore and feeds on a range of marine invertebrates, diatoms, macroalgae, and detritus. It is also known to eat both fresh and rotting kelp (Typically S. latissima).


Animalia-Echinodermata-Echinoidea-Echinacea-Camarodonta-Parechinidae-Psammaechinus-P. miliaris

Image: Hans Hillewaert

School form Wishiwashi is longer than Rayquaza. It’s 26′11″ long, and the only Pokemon longer than it are Onix, Steelix, Primal Kyogre, Mega Steelix, Mega Rayquaza, Alolan Exeggutor, and Wailord.

Also a cheerful reminder from someone who spent most of a semester studying echinodermata that since Pyukumuku is based on a sea cucumber, that li’l star-shaped feature where the, uh, insides go out? That’s not its mouth, that’s its anus. It’s not puking up its insides, it’s shitting them out.

~*~ BIOLOGY! ~*~

Splash the Sea Urchin

Species: Sea urchin(those are members of the phylum Echinodermata, which also includes sea stars, sea cucumbers, brittle stars, and crinoids. Like other echinoderms)

Age: 13

Gender: Male

Likes: to wet people and tourists , scare people with his friend a Killer Whale, Spiky things and though he never tasted them, he likes Pineapples

Dislikes: heighs and to be away from water for extended time,

Flaws: he is a very mischievous boy.. but with no because he likes to bully or for territorial meanings… he just likes to play jokes wich sometimes can not be so funny for the victims,

also if he stays too much time outside the water he gets smelly.. specially on hot days. its not good for his health XD

so because of that.. he has that necklance wich allows him to be all the time he wants outside the water; he got it from Madame Malaria, she is a budú vendor.. so she sends that kind of stuff..

Love interest: a cactus that he thinks its a girl.. he can’t see it clearly because its far far away from the sea.. still he gets to notice a girl shape… XD

Place: he lives on Emerald Coast..

hope u like it! ^-^