Halamphora costata (W. Smith) Lekov

Park, Joon Sang, Lobban, Christopher S. & Lee, Kyun-Woo, 2018, Diatoms associated with seaweeds from Moen Island in Chuuk Lagoon, Micronesia, Phytotaxa 351 (2), pp. 101-140 : 125

104. Halamphora costata (W. Smith) Lekov Figs 133, 134

References: Giffen (1971), p. 2, pl. 1, fig. 3; Wachnicka & Gaiser (2007), p. 2007, p. 407, fig. 61.

Samples: Moen1_ Halimeda, Moen 1_ Padina

Dimensions: 34.3–35.2 μm long, 8.9–9.5 μm wide; dorsal striae in 13–14 10 μm, ventral striae 16–18.

Diagnostics: Valves with convex dorsal margin and slightly concave ventral margin. Valve apices capitate. Single row of areolae on ventral margin.

Figures

FIGURES 124–144. Seventeen amphoroid diatoms species. Figs 124 and 125. Halamphora sp.1. Figs 126 and 127. Halamphora sp. 2. Fig. 128. Halamphora sp. 3. Fig. 129. Amphora sp. 1. Fig. 130. Amphora sp. 2. Figs 131. Amphora sp. 3. Fig. 132. A. proteus. Figs 133 and 134. Halamphora costata. Fig. 135. A. spriggerica. Figs 136 and 137. Amphora sp. 4. Fig. 138. Amphora sp. 5. Fig. 139. Amphora sp. 6. Fig. 140. Amphora sp. 7. Fig. 141. A. beaufortianus. Fig. 142. A. arenaria. Fig. 143. A. obtusa. Fig. 144. Climaconeis inflexa. Scale bar = 10 μm.