Scientific Research Papers Paraphysomonas Butcheri sp. nov. a marine, colourless, scale-bearing member of the Chrysophyceae, British Phycological Journal (1972) 7(1) pp. 45-48. Flagellar scales in Oxyrrhis marina Dujardin, British Phycological Journal (1972) 7(3) pp. 357-360. Paraphysomonas corbidifera sp. nov., a marine, colourless, scale-bearing member of the Chrysophyceae, British Phycological Journal (1973) 8(2) pp. 147-151. On the identity of Asteromonas propulsum Butcher, British Phycological Journal (1974) 9(1) pp. 101-106. Some observations on the cell surface structures of species of Mayorella and Paramoeba, Archiv für Protistenkunde (1975) 118 pp. 221–226. Syncrypta glomerifera sp. nov., a marine member of the Chrysophyceae bearing a new form of scale, British Phycological Journal (1975) 10(4) pp. 363-370. Studies of the External Morphology of Pyramimonas: 2 pyramimonas obovata, Archiv fuer Protistenkunde (1976) 118(3) pp. 221-226. Studies of the External Morphology of Pyramimonas: 3 pyramimonas grossii, Archiv fuer Protistenkunde (1976) 118(4) pp. 285-290. The occurrence of body scales in oxyrrhis marina dujardin, British Phycological Journal (1976) 11(4) pp. 345-348. Studies of the External Morphology of Pyramimonas: 4 pyramimonas virginica new species, Archiv fuer Protistenkunde (1977) 119(3) pp. 239-246 The occurrence of scales in the peridinian dinoflagellate heterocapsa triquetra (Ehrenb.) stein, British Phycological Journal (1977) 12(1) pp. 63-66. Studies of the External Morphology of Pyramimonas 5. P. amylifera Conrad, Archiv für Protistenkunde (1978) 120(1-2) pp. 142-147. Studies of the External Morphology of Pyramimonas l. P. orientalis and its allies in culture, Archiv für Protistenkunde (1978) 120(3) pp. 304-311. Flagellar scales in Hemiselmis brunnescensButcher and H. virescensDroop (Cryptophyceae), Archiv für Protistenkunde, Volume 124, Issue 3, 1981, Pages pp. 267-270. Ochromonas villosa sp. nov., a member of the Chrysophyceae with a fibrous body coating, Archiv für Protistenkunde (1981) 124(4) pp. 430-436. Studies of the External Morphology of Pyramimonas: 7. Pyramimonas occidentalis sp. nov., Archiv für Protistenkunde (1982) 125(1-4) pp. 223-232. Studies of the External Morphology of Pyramimonas: 8. Pyramimonas gorlestonae sp. nov., Archiv für Protistenkunde (1982) 125(1-4) pp. 233-240. Observations on the Fine Structure of Hemiselmis brunnescens BUTCHER, Archiv für Protistenkunde (1982) 126(2) pp. 241-245. Studies of the External Morphology of Pyramimonas 6. Pyramimonas cirolanae sp. nov., Archiv für Protistenkunde (1982) 125(1-4) pp. 87-94. Studies of the External Morphology of Pyramimonas: 7. Pyramimonas occidentalis sp. nov., Archiv für Protistenkunde (1982) 125(1-4) pp. 223-232. Studies of the External Morphology of Pyramimonas: 8. Pyramimonas gorlestonae sp. nov., Archiv für Protistenkunde (1982) 125(1-4) pp. 233-240. The Fine Structrue of Chlamydomonas bullosaButcher, Archiv für Protistenkunde