1. Part IV. Hydroidae;Agassiz,1862
2. A notice of some new genera and species of British Hydroid Zoophytes;Alder;Ann. Mag. Nat. Hist.,1856
3. Supplement to a catalogue of the Zoophytes of Northumberland and Durham;Alder;Trans. Tyneside Nat. Field Club.,1862
4. A monograph of the gymnoblastic or tubularian hydroids. Conclusion of Part I, and Part II, containing descriptions of the genera and species of Gymnoblastea;Allman,1872
5. Report on the Hydroida collected during the Expeditions of H.M.S. ‘Porcupine‘;Allman;Trans. Zool. Soc. Lond.,1874