Cambaridae Hobbs, 1942

Orconectes limosus (Rafinesque, 1817) (Fig. 30)

The pterocardiac ossicle (II) is more or less completely connected with the antero-lateral margin of the mesocardiac ossicle (I) and is inclined about 45° in the lateral direction. The unpaired propyloric ossicle (VI) is nearly horizontally oriented underneath the pyloric ossicle (III). The pectinal ossicle (VIII) consists of two calcified plates and has a number of irregularly shaped accessory teeth. The post-pterocardiac ossicle (IIb) is present. Ossicles Xa, XIX, XIXa, XX, XXI and XXIa are not recognisable. Ossicles “XIX-XX-XXI” and “XXV-XXVI-XXXII” are observed as mixed ossicles.