Report on the zoological collections made in the Indo-Pacific Ocean during the voyage of H.M.S. 'Alert' 1881-2.London :Printed by order of the Trustees,1884. biodiversitylibrary.org/page/12067720
Figure 2.
Cirsiumtatakaense Y.H.Tseng & C.Y.Chang A habitat B habit C seedling D variations of leaves E inflorescences F capitula G floret; (right-side pappus removed) H achene with pappus I achene.
Phacus longicaudus (Ehrenberg) Dujardin,1841, relatively large euglenoid flagellate with flattened rigid pellicle having longitudinal striations. The posterior end is drawn out into a slender slightly curved spinous process. Many pale green discoid chloroplasts.Annular central paramylon body. Red stigma. This individual has shed its flagellum. Slow swimmer. From freshwater pond near Boise, Idaho; 43°19'07.45"N. 115°27'31.99"W, elev.4712 ft.DIC.