SOME JERSEY OLIGOCHMTS. 463 



List of Known Forms. — It is now possible for us to take a 

 survey of the whole field. The gap remains. No species of 

 Molosomatidce, Naididce, or Tubificidce is on record. 



LuMBRICULID-E. 



1. Lumbriculus variegatus, Miiller. — One immature specimen. 



ENCHYTRiEICffi. 



2. Henlea rhcetica, Bret. — Common. 



3. H. hibernica, Southern. — Less frequent. 



4. H. parva ?, Friend. — Bare. 



5. H. insula, sp. nov. — Eare. 



6. Buchholzia (fallax? immature). — Three specimens. 



7. Marionina crassa, Clap. ? 



8. M. or Lumbricillus, sp. (possibly two kinds). 



9. Mesenchytrceus setosus, Mich. — Three specimens. 



10. M. oligosetosus, sp. nov. — Two specimens. 



11. Enchytrceus albidus, Henle. — Common. 



12. E. buchholzi, Vejd. — Eare. 



13. E. minimus, Bret. — Not uncommon. 



14. E. nigrinus, Bret. — Eare. 



15. Fridericia idmicola. Friend. — Eight specimens. 



16. F. michcelseni, Bret. — Three specimens. 



17. F. perrieri, Vejd. — Common. 



18. F. agricola, Moore. — Eare. 



19. F. leydigi, Vejd. — With variety or new form, fine specimens. 



20. F. bidbosa, Eosa. — Typical form. Ten or more specimens. 



21. F. connata, Bret. — Four specimens. 



22. F. polychceta, Bret. — Fairly common. 



23. F. polychceta var. robusta, Friend. — One specimen. 



24. F. bretscheri, Southern. — One specimen. 



25. F. glandifera ? Friend. — Three specimens. 



26. F. galba, Hoffm. — One specimen. 



27. F. bulbifera, Friend. — Three varying forms. 



28. F. ratzeli, Eisen. — Eare. 



29. F. helvetica, Bret. — Eare. 



30. F. hillmani, sp. nov. — Eare. 



31. F. (bisetose species not yet identified). 



32. Chamadrilus chlorophilus, Friend. — Five specimens. 



