Gobio gobio ( Linnaeus, 1758 )

Schulz-Mirbach, Tanja & Reichenbacher, Bettina, 2006, Reconstruction of Oligocene and Neogene freshwater fish faunas-an actualistic study on cypriniform otoliths, Acta Palaeontologica Polonica 51 (2), pp. 283-304 : 292

Gobio gobio ( Linnaeus, 1758)

Fig. 13 .

Material and dimensions.—See Table 2.

Description.—The general shape is kidney−like. The margins are straight or slightly rounded. The anteromedial edge is rounded but clearly visible. In contrast, the posteromedial edge is weakly pronounced ( Fig. 13B, C ) or nearly absent ( Fig. 13A 1 , F). The anterolateral edge is well developed and slightly pointed. This is also the case for the posterolateral edge that forms the posterior tip of the lapillus.

Figures

Fig. 13. Utricular otoliths (lapilli) of Recent Gobio gobio (Linnaeus, 1758) from wild catches in Germany. A, B, D–F. BSPG 2003 IV 57, 54, 59, 55, and 58 respectively, represented as right lapilli (D–F mirrored) in dorsal (A1, B, D–F) and anterior (A2) views. C. BSPG 2003 IV 56 in ventral view, represented as left lapillus (mirrored). SEM−pictures (A–C), digital pictures (D–F).

Fig. 1. Position and morphology of the otoliths in the head of a carp. A. Computer tomography (CT) of Recent Cyprinus carpio (Linnaeus, 1758) (BSPG 2003 IV 143) and its lapilli; 150 layers of frontal sections were carried out from the dorsal to the ventral side of the head. 3D reconstruction of the head with the position of the otoliths projected (A1), frontal section (layer 36), showing the position of lapillus and asteriscus (A2), and frontal section (layer 38), showing the position of sagitta and asteriscus (A3); right (A4) and left (A5) lapillus in dorsal views (A4 and A5 are digital photographs). B. Digital pictures of the otoliths of Recent Cyprinus carpio (Linnaeus, 1758): lapillus in dorsal view (B1), asteriscus in medial view (B2), and sagitta in medial view (B3) (posterior tip incomplete). Otoliths are represented as right ones (BSPG 2003 IV 156b, d, and e respectively).