The dorsals have short transverse processes and neural spine, the anterior and middle ones (those with a haemal spine or carina) having a large anterior pneumatic foramen between the nib-facet, the foramen being triangular in shape.
The third and fourth dorsals are extremely compressed.
In the dorsals there is usually no anterior pneumatic foramen till the fourth (or the last with a distinct haemal carina), this foramen being situated on the line of the anterior border of the rib-facet.
Other tentacular cirri subcylindric, reduced distally to a pointed tip, that of I about half as long as the dorsals of II and III.
With very large cirri of which the dorsals widely overlap in the middle and thus completely cover the dorsum, the prostomium normally also being wholly concealed from above.
The two dorsals are ordinarily carried, when at rest, depressed quite down to the back, but are elevated in swimming.
As to the dorsals of Osteolepis, they are regular in structure and position, having nothing remarkable about them, except that there are two of them, which is comparatively unusual in living fish.
In the Skate (Raia) the body is rhomboidal, tail without spine, but two smalldorsals near the top.
In the Torpedo the body is nearly round, the tail short and fleshy, with two dorsals and a caudal fin.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "dorsals" in a variety of sentences. We hope that you will now be able to make sentences using this word.
