Among the zoologists his monographs upon the Balanidae and Lepadidae.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 1] Reference

The Balanidae or sessile cirripedes, on the other hand, have no ovigerous frena, the eggs lying loose at the bottom of the sack, in the well-enclosed shell; but they have large folded branchiae.    From Wordnik.com.  [On the origin of species] Reference

The cement-ducts in the basis of the Balanidae likewise constitute a generally remarkably complicated system of ramified tubes, with regard to the mode of termination of which nothing certain has yet been made out.    From Wordnik.com.  [Facts and Arguments for Darwin] Reference

Balanidae, Darwin's work on.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

The Balanidae, the.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 1] Reference

Balanidae, page 111.)).    From Wordnik.com.  [Facts and Arguments for Darwin] Reference