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

DIPLOTESTAA. Brongniart image
DIPLOTESTACookson & Eisenack image
Diplotesta anglicaCookson & Hughes Palaeontology 7: 56, pl. 11: figs. 1-5 1964
Diplotesta bidigitataManum & Cookson image
Diplotesta glaessneriCookson & Eisenack image
Diplotesta inflataHabib image
Diplotesta krutzschii_('krutzschi')Alberti image
Diplotesta lunaCookson & Eisenack Micropaleontology 6: 10, pl. 3: fig. 21 1960
DIPLOTESTACEAECookson & Eisenack image
DIPLOTESTACEAEVozzhennikova image