Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Historical perspectives -- The collared flagellate : functional morphology and ultrastructure -- Craspedida : choanoflagellates with exclusively organic coverings -- Loricate choanoflagellates : Acanthoecida -- Loricate choanoflagellates : requirement for silicon and its deposition in costal strips -- Loricate choanoflagellates : Acanthoecidae -- nudiform species -- Loricate choanoflagellates : Stephanoecidae -- tectiform species -- Loricate choanoflagellates : evolutionary relationship between the nudiform and tectiform conditions -- Choanoflagellate ecology -- Choanoflagellate phylogeny : evolution of metazoan multicellularity.

Choanoflagellates have three distinctive claims to fame: they are the closest, living, unicellular relatives of animals; they are a major component of aquatic microbial foodwebs; and one group is remarkable for its siliceous basket-like coverings. This landmark book offers a unique synthesis of over forty years of choanoflagellates research. Key areas are covered, from the phylogenetic evidence supporting the sister-group relationship between choanoflagellates and Metazoa, to choanoflagellate distribution and diversity in marine and freshwater environments. The structure and assembly of choanoflagellate loricae is also presented together with a full discussion of a novel example of 'regulatory evolution', suggesting that the switch from nudiform to tectiform cell division and lorica production was achieved by a sudden reorganisation of existing structures and mechanisms. Providing an authoritative summary of what is currently known about choanoflagellates, this title will serve as a foundation upon which future research and discussion can take place.