Diaphus aequalis Schwarzhans & Aguilera, 2013

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 : 413

Diaphus aequalis Schwarzhans & Aguilera, 2013

(Figure 43)

2013 Diaphus aequalis Schwarzhans W & Aguilera O , plate 13, figs. 13–25

Material 2 specimens in total: 1 specimen Anda4 RGM 962157; 1 juvenile specimen Anda4 RGM 962344 .

The adult round otolith has good resemblance with Diaphus aequalis described by Schwarzhans & Aguilera (2013) with respect to its outline (OL=4.0, OH= 3.4 mm), shape of the ostium and cauda of the sulcus (OCL:CCL ratio =1.74), and the denticles along the ventral rim. The thickness of our specimen is slightly less than in the originally described specimens, and the depression posterior of the dorsal angle is more pronounced. Notwithstanding we consider the specimen to match Diaphus aequalis .

PLATE 3

27. Benthosema fibulatum RGM 962171, locality Roxas. (a) Medial face, (b) ventral profile, (c) lateral face.

28. Benthosema aff. fibulatum , RGM 962161, locality Roxas. (a) Medial face, (b) lateral face, (c) ventral profile. 29. Benthosema aff. fibulatum RGM 962162, locality Roxas.

30. Benthosema aff. fibulatum , RGM 962164, locality Roxas.

31. Benthosema aff. fibulatum , RGM 962163, locality Roxas. (a) Medial face, (b) lateral face, (c) ventral profile. 32. Benthosema aff. fibulatum RGM 962165, locality Roxas.

33. Benthosema aff. fibulatum , RGM 962169, locality Roxas.

34. Benthosema aff. fibulatum , RGM 962168, locality Roxas.

35. Benthosema aff. fibulatum , RGM 962170, locality Roxas.