
1) Flatworm 2) Flatworm genus 3) Planarian 4) Platyhelminth
Found on
https://www.crosswordclues.com/clue/planaria

1) Planarian
Found on
https://www.crosswordclues.com/clue/planaria

Planaria is a genus of planariid triclad. It reproduces by means of fragmentation. == Species == ...
Found on
http://en.wikipedia.org/wiki/Planaria

• (n.) Any species of turbellarian worms belonging to Planaria, and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countries, are terrestrial.
Found on
http://thinkexist.com/dictionary/meaning/planaria/

(from the article `nervous system`) ...flatworms were the first invertebrates to exhibit bilateral symmetry and also the first to develop a central nervous system with a brain. The ... any of a group of widely distributed, mostly free-living flatworms of the invertebrate class Turbellaria (phylum Platyhelminthes). Planaria is the ... ...
Found on
http://www.britannica.com/eb/a-z/p/75
Pla·na'ri·a noun ;
plural Latin
Planariæ , English
-rias . [ New Latin See
Planary .]
(Zoology) Any species of turbellarian worms belonging to
Planaria , and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countr...
Found on
http://www.encyclo.co.uk/webster/P/99

Planaria is a member of the order tricladida.
Found on
http://www.probertencyclopaedia.com/browse/BPA.HTM
No exact match found.