Such valves may also have a distinctive " comb " or " ctinoleum " within the byssal notch on the right valve.
2.
The foot is a finger-like organ, which spins the byssal threads, which pass through the byssal notch on the ears.
3.
Entoliids had auricles and byssal notch only at youth, but they did not have a ctenolium, a comb-like arrangement along the margins of the byssal notch in Pectinidae.
4.
Entoliids had auricles and byssal notch only at youth, but they did not have a ctenolium, a comb-like arrangement along the margins of the byssal notch in Pectinidae.
5.
Shells without a pallial sinus are termed " integripalliate " such animals ( as mentioned, the scallops as well as some other groups ) often have a byssal notch present on the " anterior " end of the " right " valve ( only ), and the anterior auricles or " wings " of both valves will be either larger than, or equal to, the posterior ones.
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