Rudiments of Conchology / Intended as a familiar introduction to the science.

by Mary Anne Venning

"The first order, Bimusculosa, is finished. In our next lesson we shall proceed to the families and genera contained in the second, Unimusculosa."

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[CHAPTER VIII.]

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Class.—Conchifera.

Second Order.—Unimusculosa.

"1st family, Tridacnacea.

Tridacna	Chama.
Hippopus	Chama, (one species.)

UNIMUSCULOSA.
TRIDACNA.
MODIOLA.