Cymonomidae Bouvier, 1898

Cymonomus granulatus (Thomson, 1873) (Fig. 10)

Antero lateral to the zygocardiac ossicle (V) extends the prezygocardiac ossicle (Va), only recognised in Cymonomidae . Ossicles VIII, XI, XV, XIX, XIXa, XXIa and XXIb are not recognisable. The inferior lateral cardiac ossicle (XIII) has a clearly lateral connection to the subdentate ossicle (XIV). The subdentate ossicle (XIV) has postero-ventral a small rounded spine. Ossicles “IV–V”, “XVII–XXIII”, “XX–XXXI” and “XXV– XXVI-XXXII” are observed as mixed ossicles.