Cambaridae Hobbs, 1942

Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, Zootaxa 2510, pp. 1-44 : 35

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.

Figures

FIGURE 30. Foregut ossicles and gastric teeth of Orconectes limosus (Rafinesque, 1817), A. dorsal view, B. lateral view, C. lateral tooth, D. accessory teeth, E. dorso-median tooth, F. cardio-pyloric valve; scales: A. & B. 1 mm, C. 200 µm, D. 100 µm, E. & F. 200 µm.