Raninidae

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 16-17

Raninidae de Haan, 1839

Ranina ranina (Linnaeus, 1758) (Fig. 11); Raninoides hendersoni Chopra, 1933 ; Raninoides bouvieri Capart, 1951 ; Raninoides personatus Henderson, 1888 ; Lyreidus tridentatus de Haan, 1841 and Lysirude channeri (Wood-Mason, 1887)

For the description of the foregut structures I am using Ranina ranina as the example for all of these species.

The pectinal ossicle (VIII) is horseshoe-shaped with one accessory tooth. The inferior lateral cardiac ossicle (XIII) has a clearly lateral connection to the subdentate ossicle (XIV). The ossicle (“XVII–XXIII”) is observed as a mixed ossicle. Ossicles XIX and XIXa are not recognisable.

Lyreidus brevifrons Sakai, 1937

The unpaired propyloric ossicle (VI) is inclined about 45° in the posterior direction.