Silva Center for Phycological Documentation: Index Nominum Algarum

The INA is a card file and online reporting system maintained at the Silva Center for Phycological Documentation of the University Herbarium, University of California, Berkeley. It contains nearly 200,000 names of algae (in the broad sense). The BPU is a card file containing bibliographic references pertaining to algal taxonomy.
A working list of algal type specimens at UC is available here

Results from INA database

NameAuthorSourceCitationYear
OCTACTISSchiller image
OCTACTIS vonStrampff image
Octactis bioctonaria(Ehrenberg) Locker image
Octactis nonariaB. Ghazala & M. Shameel Int. J. Phycol. Phycochem. 42: 210, fig. 1 2008
Octactis octonaria(Ehrenberg) Hovasse image
Octactis pulchraJ. Schiller Arch. Protistenk. 53: 67, text-fig. C 1925
Octactis pulchra var. takahashiiK. McCartney, K. Abe & R.W. Jordan in Abe et al. Journal of Nannoplankton Research 35: 124, pl. 3: figs. 1-7 2015
Octactis speculum(Ehrenberg) F.H. Chang, J.M. Grieve & J.E. Sutherland Phycol. Res. 65: 244 2017
Octactis tenella vonStrampff image
Octactis tenuis(D. Bukry) T.V. Desikachary & P. Prema Bibliotheca Phycologica 100: 219 1996
Octactis tenuis(D. Bukry) T.V. Desikachary & Prema image