Io) and other genera that go openly about in search of food resemble wood-lice.
In Thamnodrilus, as has been pointed out, there are two series of nephridia which resemble those of the Terebelloidea in the different sizes of their funnels.
In the absence of the external ectodermal ducts usual in winged insects, these two groups resemble therefore the primitive Aptera.
The Stromateidae, or pomfrets, resemble the dory, a Mediterranean form, and extend to China and the Pacific. The sword fishes, Xiphiidae, the lancet fishes, Acanthuridae, and the scabbard fishes, Trichuridae, are distributed through the seas of south Asia.
Many objects in nature, organisms especially, seem to resemble the works of human design; there fore with high probability we infer a designing mind behind nature, adequate to the production of these special results.