Larva from the peanut worm, Nephasoma pellucidum

Worms from the phylum Sipuncula, commonly known as peanut worms, live in marine habitats and use small tentacles to gather organic debris from the water. First described in 1827 by a French zoologist, a related species was later identified by famed invertebrate zoologist E. Ray Lankester. Lankester dissected the new species between rounds of golf in Scotland. In celebration of his golfing holiday, he decided to name the species Golfingia vulgaris, which was later sorted into the Sipuncula phylum.

Image by Dr. Michael Boyle, Smithsonian Institution.


Unidentified Peanut Worm (Sipuncula)
Pasir Ris, 7th June 2008

5 species of Peanut Worm have apparently been listed as occurring in Singapore, but whether these identifications are accurate is dependent on closer study by experts in the group, of which there are only a small handful in the world. It’s also unknown as to whether these species can be reliably identified and distinguished from one another in the field.


Worms, part 2
1-2. Leech, Subclass Hirudinea. We tried to ID the species from a book, and we guessed Marsipobdella sacculata.
3-5. Peanut worm. Either its own phylum, or a class of Annelida, it’s a Sipunculan.
6-7. Ribbon worm, phylum Nemertea. Amphiporous sp.

Then we were done with worms, but we moved onto Arthropods which meant spiders and bugs :(


Larva pelagosphera (by Alvaro Migotto)