arrangement of neural plates, [324];

C. leucostomum, [342], [344];

C. odoratum, [342], [343];

C. pennsylvanicum, [342], [344]

Cinyxis belliana, [365];

C. erosa, [364], [365];

C. homeana, [364]

Cistecephalus, [310]

Cistudo, arrangement of neural plates, [324];

C. Carolina, [361] f., [364];