Arenicola

He compares, for instance, the placenta with the gills of fish, of molluscs and of worms, homologising the cotyledons with the separate tufts of gills in _Tethys, Scyllæa_ and _Arenicola_ (p. 26).

Form and Function A Contribution to the History of Animal Morphology

Most of them belong to the well-known species _Cirrhatulus_, _Arenicola_, _Aceronereis_,

A New Voyage Round the World, in the years 1823, 24, 25, and 26, Vol. 2 Otto von Kotzebue 1816