"Diagram of a colony of Campanularia, showing four forms of persons. A, portion of a fixed colony; a,…
"Diagram of Clava, showing a hydriform person surrounded by a verticil of degenerate medusiform persons…
"A, a hydriform person giving rise to medusiform persons by budding from the margin of the disc; B,…
"Diagram of a colony of dicoryne, showing three forms of persons. a, normal hydriform person; b, modified…
"Diagram of a colony of Hydractinia, showing four forms of persons. a, hydriform person; b, modified…
"Diagram showing possible modifications of medusiform and hydriform persons of a colony of Siphonophora.…
"Hydriform person of Syncoryne, with medusiform persons budding from it, and shown in various stages…
"A single hydriform person a bearing a stalk carrying numerous degenerate medusiform persons or sporosacs…