Alcespina ovadaensis, Pasini & Garassino, 2017

Pasini, Giovanni & Garassino, Alessandro, 2017, A new raninoid crab (Decapoda, Brachyura, Raninidae) from the early Oligocene (late Rupelian) of Italy, Natural History Sciences 4 (1), pp. 87-96 : 89

Alcespina ovadaensis n. sp

Figs. 2-7

Figures

Fig. 2 - Alcespina ovadaensis n. gen., n. sp., carapace in dorsal view.A) holotype, MPOM 290 (Galanti, Cassinelle) (x 1.6). B) paratype, 17MT (Rio Volpina, Ponzone) (x 1.4). C) paratype, MPOM 1770 (Ciglione) (x 1.4). D) paratype, MPOM 1779 (Ponzone) (x 1.5).

Fig. 3 - Alcespina ovadaensis n. gen., n. sp, MPOM 1780 (Ciglione), mature male.A) dorsal view (natural size). B) anterolateral out- line (x 1). C) pleonal view (x 1.1).

Fig. 4 - Alcespina ovadaensis n. gen., n. s.p., RMT (Giusvalla).A)?female sternum (x1.8). B) 3rd maxilliped with endo- and exopodites (x 1.1). C) MPOM 39 (Ciglione), female somites (natural size).

Fig. 5 - Alcespina ovadaensis n. gen., n. sp. A) C3 (Ponzone), right chela (x 1.3). B) MPOM 740 (Ciglione), right and partial left chela (natural size). C) MPOM 1780, male chelae (x1.1).

Fig. 6 - Alcespina ovadaensis n. gen., n. sp., variability in the 2nd anterolateral spine. A) MPOM 1770 (x 2.5). B) MPOM 23 (x 1.7). C) MPOM 701 (x 2.2). D) MPOM 1776 (x 2.5).

Fig. 7 -?Ranina bouilleana A. Milne Edwards, 1872. MNHN R03540 (x 0.9).