In the lowest of the fish-like forms, the lancelet, the eye is simply a minute pigment-spot situated in the anterior wall of the ventricle at the anterior end of the central nervous system.
The very lowest of the fish-like forms (Branchiostoma) has no differentiated head or skull, but in all the other forms the anterior part of the vertebral column is modified to form a cranium for the protection of the brain.
The more hatchet-like forms he considers to be tomahawks.
I possess specimens formed of obsidian, from Mexico; and instruments of jasper, of scraper-like forms, have been found at the Cape of Good Hope.
Leaving these fish-like forms, we find the remainder of the carboniferous reptiles to diverge from them along three lines.
Contemporaneously with the dawn of the Trilobite group, appear some small shrimp-like forms (Fig.
The other tribe belonging to this section is the Eryonidea, comprising a number of small lobster-like forms living in the deep sea.
In these points they resemble the shrimp-like forms, but there is no carapace, and all the somites of the thorax are distinct, so that the form of the body is rather that of an Amphipod or Isopod.
Here again it is likely that the beginnings of the group are to be sought for in the Carboniferous epoch, and some of the obscure shrimp-like forms of that age show hints of an affinity with the Decapods.
What, then, is the record of the rocks at the time of the first appearance of fish-like forms?
The family of Saurorhynchidæ contains pike-like forms, with long jaws, and long conical teeth set wide apart.
The mesocoracoid or precoracoid arch, found in all Ganoids, persists in the less specialized types of bony fishes, although no trace of it is found in the perch-like forms.
Definite wolves and foxes abound in America, and the bear, civet, and hyaena are represented in Europe, together with vague otter-like forms.
The stem-like forms of certain algae are composed of cylindrical cells which combine or grow in a longitudinal direction chiefly.
Tufts loosely entangled at the base, free and feathery above, of indefinite length; spores in pod-like forms at the ends of the branches.
After a little time of quiet watching they will be seen putting out their tentacles and expanding their beautiful flower-like forms.
The vertebrates are first represented in the fish-like forms.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "like forms" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
