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FIGURES 24–32. Divergita straight species. Figs 24, 25 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 24–32. Divergita straight species. Figs 24, 25. LM images of Divergita spp. Fig. 24. Divergita sp., Yap specimen is a possible example of D. biformis, but is from a different location (Y36) from the SEM holotype. Fig. 25. Divergita sp., Guam specimen, possibly D. decipiens, from the same location (GU52) as the holotype, but a different collection date. D. biformis has also been seen in SEM of samples from GU52, it is not possible to tell which species is shown here. Figs 26–28. Divergita biformis, sp. nov., SEM. Holotype specimen whole mount on stub 1116, Y45-5, whole valve and details of apex and center, showing narrow, linear sternum and areola pattern. Figs. 29–33. Divergita decipiens, sp. nov. SEM. Figs 29–31. Holotype specimen whole mount on stub 566, GU52R-2, external views, showing broad, lanceolate sternum. Fig. 32. Disassociated frustule from same sample, showing interior features of rimoportula (arrow) and foramina, along with external view showing that this is not Hyalosynedra. Scale bars: Figs 24–26, 29 = 10 µm, Figs 27, 28, 30–32 = 2 µm.

FIGURES 1–6. Plagiogramma subatomus. SEM except Fig. 1 DIC. Fig. 1 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 1–6. Plagiogramma subatomus. SEM except Fig. 1 DIC. Fig. 1. Holotype, GU44I-1, Guam. Fig. 2. External view of valve showing spines and apical slits; J5, Jaluit Atoll, Marshall Is. Fig. 3. Internal view showing boxlike pseudoseptum and apical slits, Palau (Konno). Fig. 4. Part of chain showing face to face connections; note the various depths of the copulae (arrow); PW2009-31, Palau. Figs 5, 6. Yap specimens (Y18E) showing internal aspect and a frustule in oblique view; arrow points to copulae. Scale bars: Fig. 1 = 10 µm, Figs 2–6 = 2 µm.

FIGURES 62–69. Climaconeis lorenzii SEM, Y26C, Yap. Figs 62, 63 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 62–69. Climaconeis lorenzii SEM, Y26C, Yap. Figs 62, 63. Central and apical portions of frustule in valve view showing deflected central raphe endings and row of larger pores along one side of sternum (Fig. 62 arrow). Fig. 64 Frustule showing craticular bars. Figs 65, 66. Central and apical portions of frustule in girdle view, showing large pores on pars exterior of the valvocopula (VC). Figs 67–69. Valve with valvocopula. Fig. 67. Entire (incomplete) specimen. Fig. 68. Detail of valvocopula showing the abvalvar surface on the left, hollow box structure shown at small arrow; on the right side below the break the frame is rotated inward to also show the pars exterior (arrowhead). and above the break rotated outward to show the proximal side of the box with crenulated margin (large arrow). Fig. 69. Detail of apex of valvocopula showing apparent break in the frame at the apex, the lack of pores near the apex, and the interlocking surfaces of the craticular bars. Scale bars: Figs 62–66, 69 = 5 µm, Fig. 67 = 10 µm, Figs 68 = 2 µm.

FIGURES 18–23. Licmophora graphis. SEM except Fig. 18 DIC. Fig. 18 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 18–23. Licmophora graphis. SEM except Fig. 18 DIC. Fig. 18. Living cells epiphytic on ectocarpoid phaeophyte filament, showing numerous small elliptical plastids clustered around the nucleus, GU44U-2. Figs 19–21. Holotype specimen whole mount on stub 718, GU44BJ-3: entire frustule and details of base and apex, showing change in stria density and presence of two apical rimoportulae (arrows). Figs 22, 23. Base and apex of specimen from GU80A-3. Scale bars: Figs 18, 19 = 10 µm, Figs 20–23 = 5 µm.

FIGURES 91–102 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 91–102. Pleurosigma simulacrum. DIC (Figs 91–93), SEM (Figs 94–102). Figs 91, 92. Holotype specimen, entire and portion at higher magnification, GU44AR-1. Fig. 93. Living cell, GU44AD-1. Figs 94–97. Specimens from culture GU52X-1 (courtesy M. Ashworth). Fig. 94. Central area, external view showing nonoverlapping central raphe endings. Fig. 95. Apex, showing hooked terminal raphe ending. Fig. 96. Internal central area; arrows indicate lines of small areolae along the sternum and valve border. Fig. 97. Internal apex, in this case with no areolae around the apex (arrowhead). Figs 98–101. Specimens from wild material. Figs 98, 99. External central and apical portions, the latter showing absence of calcar along valve border; Y26B, Yap, same arrows as on culture specimens. Figs 100, 101. Internal central and apical portions, GU44AR-1, same arrows as on culture specimens, apex showing one duplex areola on each side of the apex. Fig. 102. Specimen from Y37-8, showing apex with single duplex areola at apex. Scale bars: 91–93 = 10 µm, Figs 98, 99 = 5 µm, Figs 94–97, 100–102 = 2 µm.

FIGURES 7–17. Licmophora romuli. SEM except Fig. 7 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 7–17. Licmophora romuli. SEM except Fig. 7 phase contrast. Fig. Holotype specimen from GU44P-B, Guam; arrow marks the basal rimoportula. Fig. 8. Whole mount showing valvocopula with midrib crossing first from abvalvar side (the VC belongs to the valve underneath) to advalvar side, then back (arrowheads). Fig. 9. Part of acid-cleaned valve showing acropetal transition in the number of vimines outward from the sternum; Y41-7, Yap. Fig. 10. Internal aspect of basal pole with rimoportula. Fig. 11. External aspect of a pair of basal poles, showing multiscissura and rimoportula opening. Fig. 12. Internal aspect of an apex showing apical rimoportula. Fig. 13. Whole mount showing pleurae. Fig. 14. Valvocopula closed end showing lack of septum. Figs. 15–17. Parts of a valvocopula showing the midrib transitions (arrowheads) and the simply tapered open tip. Figs 8, 11, 13 from GU44P-B; Figs 12, 14–17 from GU52X-1. Scale bars: Fig. 7 = 10 µm, Figs 8, 9, 13–16= 5 µm, Figs 10–12 = 2 µm

FIGURES 79–90. Parlibellus waabensis. SEM except Figs 79, 80 DIC. Figs 79, 80 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap

FIGURES 79–90. Parlibellus waabensis. SEM except Figs 79, 80 DIC. Figs 79, 80. Holotype at two focal planes, Y39A. Fig. 81. Valve in valve view. Fig. 82. Detail of valve showing short biseriate sections of some striae on the mantle (arrows). Fig. 83. Valve in oblique view, arrow again pointing to biseriate stria. Figs 84, 85. External and internal aspect of valve apex showing terminal raphe hook relation to adjacent striae (arrows). Figs 86, 87. Details of internal apex and central area. Figs 88–90. Frustule in girdle view, with details of central and apical portions, the bands labeled in Fig. 90. Scale bars: Figs 79–83, 88 = 10 µm, Figs 84–87, 89, 90 = 5 µm

FIGURE 24 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 24. Doloria (Dolorietta) sp. nov. 2 (juvenile female: ZMH K-41913). Carapace: A, posterior part; B, posterior list; C, bristle on posterior list; D, pore at area between posterior list and posterior margin.

FIGURE 10 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 10. Doloria (Dolorietta) antarctica sp. nov. (paratype male: ZMH K-41898). A, distal part of seventh limb. Copulatory limbs: B, whole limb, C and D, distal part of lobes; E and F, bristles on lobes.

FIGURE 28 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 28. Doloria (Dolorietta) sp. nov. 2 (juvenile female: ZMH K-41913). Sixth limb: A, whole limb; B, endites. Furca: C and D, right and left lamellae.

FIGURE 23 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 23. Doloria (Dolorietta) sp. nov. 2 (juvenile female: ZMH K-41913). Carapace: A, left valve in lateral view; B, rostrum, internal view; C, antero-ventral margin, internal view; D, anterior part, internal view.

FIGURE 18 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 18. Doloria (Dolorietta) sp. nov. 1 (juvenile male: ZMH K-41912). Carapace: A, right valve in lateral view; B, rostrum, internal view; C, bristles on rostrum; D, antero-ventral part, internal view; E, bristles on anterior part; F, infold on posterior part.

FIGURE 1. Localities from the ANDEEP stations, with X in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 1. Localities from the ANDEEP stations, with X+ number indicating localities where Doloria was recorded and X (without number) indicating localities where Doloria was not recorded in the samples.

FIGURE 2 in New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

FIGURE 2. Doloria (Dolorietta) antarctica sp. nov. (Holotype female: ZMH K-41897). Carapace. A, left valve, lateral view; B and C, rostrum and incisor, lateral and internal views; D, rostrum, internal view; E and F, antero-ventral infold.