* MARINE DIATOMS OF THE PHILIPPINE ISLANDS 177 



Plate 7 



Page 



Fig. 1. A uliscus quadratus, new species. X550 33 



2. Auliscus quadratus, new species. X550 33 



3. Biddulphia abjecta, new species. X600 33 



4. Biddulphia abjecta, new species. X600 33 



5. Biddulphia cingu lata, new species. X670 35 



6. Biddulphia cingulata, new species. X500 35 



Plate 8 



Page 



Fig. 1. Biddulphia cycloides, new species. X580 37 



2. Biddulphia cornigera, new species. X360 36 



3. Biddulphia disc ursa, new species. X260 37 



4. Biddulphia petitii (Leuduger-Fortmorel) Mann 43 



5. Biddulphia fractosa, new species. X850 39 



(See also pi. 10, fig. 1.) 



Plate 9 



Page 



Fig. 1. Biddulphia exacta, new- species. X450 38 



2. Biddulphia informis, new species. X840 41 



3. Biddulphia informis, new species. X860 41 



4. Biddulphia inverla, new species. X230 41 



(See also pi. 10, figs. 2-3.) 



Plate 10 



Page 



Fig. 1. Biddulphia fractosa, new species. X220 39 



(See also pi. 8, fig. 5.) 



2. Biddulphia inverta, new species. X150 41 



3. Biddulphia inverta, new species. X190 41 



(See also pi. 9, fig. 4.) 



4. Biddulphia petitiana, (Leuduger-Fortmorel)? Mann. X590 — 43 



5. Biddulphia petitiana, (Leuduger-Fortmorel)? Mann. X650 — 43 



6. Biddulphia retiforms, new species. X840 45 



7. Biddulphia rudis, new species. X880 45 



8. Biddulphia trisinua, new species. X290 47 



9. Biddulphia trisinua, new species. X290 47 



Plate 11 



Page 



Fig. 1. Biddulphia turrigera, new species. X620 47 



2. Biddulphia turrigera, new species. X570 47 



3. Biddulphia undulosa, new species. X570 48 



4. Campylodiscus bilateralis, new species. X500 49 



5. Campylodiscus ligulosus, new species. X790 53 



6. Campylodicus perspicuus, new species. X510 53 



7. Chaetoceros (Bacteriastrum) hebes, new species. X490 56 



Plate 12 



Page 



Fig. 1. Chaetoceros (Bacteriastrum) medusa, new name. X470 57 



2. Chaetoceros (Bacteriastrum) medusa, new name. X470 57 



3. Chaetoceros (Bacteriastrum) princeps, new name. X340 57 



4. Climacosphenia scimiter, new species. X230 59 



