Diplospinus multistriatus Maul 1948

Van Hinsbergh, Victor W. M. & Helwerda, Renate A., 2019, Fish Otoliths from the Cabarruyan Piacenzian-Gelasian fauna found in the Philippines, Zootaxa 4563 (3), pp. 401-443 : 424

Diplospinus multistriatus Maul 1948 )

(Figure 74)

1999 Diplospinus multistriatus Rivaton J, Bourret P , pag 326–327, plate 154, fig. 11–18

Material: 1 specimen in total. Tiep2 (1) RGM 962307.

Thin and slender lanceolate otolith (OL:OH=3.02) with a pointed rostral side and an obliquely blunt posterior demarcation. The slightly supramedian sulcus contains a long ostium that opens at the anterior tip; the shorter cauda narrows before an extended posterior field. The dorsal rim is rounded along the whole otolith without a depression at the ostial side. The ventral rim is regularly curved, but ends at its posterior end in a big lobe. The outer surface is concave in height direction and flat in length direction. The dorsal and ventral rims contain feeble lobes, which are alternated by small furrows at the outer and inner sides of the otolith, and are best developed at the ventral side. Its shape closely resembles that of the extant Diplospinus multistriatus .