The tentacles are primarily four in number, perradial, alternating with four interradial tentaculocysts, but both tentacles and sense-organs may be multiplied and the primary perradii may be six instead of four (fig.
Interradial tentacles may be also developed, so that the total number present may be increased to eight or to an indefinitely large number.
Whether interradial plates are developed as in Asterias is not clear.
It eventually becomes placed in an interradial space within the oral disc of the adult.
It might have been anticipated that it would be placed in one of the primary interradial plates, but this does not seem to be the case.
Still later a central calcareous plate appears on the abactinal surface, which is thus formed of a central plate, surrounded by a ring of five interradial plates, and then again by a ring of five radial plates.
Special units have no fixed posts except at ceremonies.
The following bugle signals may be used on the battlefield: =Fix bayonets.
To this end, smartness and precision should be exacted in the execution of every detail.
This process of absorption is probably accomplished in the interradial or ciliated chambers, more probably in the former, as the latter are generally considered excretory in function.
Thorax with eight radial ribs, four secondary interradial beams being interpolated between the four primary perradial beams of Tetraphormis.
Lower ring octagonal, with eight peripheral adradial spines, and with fourinterradial centripetal teeth on the inside.
It may be derived from the latter by interpolation of three secondary or interradial wings between the three primary or perradial apophyses.
The genus Clathrocorys differs from the two preceding nearly allied genera in the incomplete fenestration of the thorax, the three perradial ribs of which are separated by three large interradial holes.
Between the latter four interradial beams arise from the sides in pairs, and the two pairs are connected by a diagonal arch.
Thorax flatly conical, with larger hexagonal meshes and twenty-four ribs; four of these are perradial and prolongations of the four collar bars; four interradial arise from the collar ring between the former, alternating with them.
In the centres of the four basal bars (or the sides of the square) arise four interradial beams, which unite in the second (or upper) square ring.
Shell subspherical, pellucid, thinner and more fragile than in the other species of the genus, with three aboral perradial feet in the lower third, and three interradial teeth around the wide mouth.
From the eight outer corners of the lower ring (or from the eight interradial meshes, between the eight perradial beams) start eight basal centrifugal spines.
Basal plate with nine pores, three larger interradialalternating with three pairs of adradial.
From the eight corners of the upper ring ascend also eight perradial spines, alternating with the eight interradial beams, which connect the two rings.
If those rings from the commencement be interrupted by three interradial gaps (gates) the family Pylodiscida arises (Pl.
Each of these planes is determined by the spineless axis and by two crossed interradial or secondary axes; in each of the latter lie two opposite tropical spines.
All rings of the disk concentric, of nearly equal breadth, connected by four interradial beams, perpendicular one to another.
The other twelve are four interradialequatorial spines (lying in the two secondary meridian planes) and eight perradial tropical spines (lying in the two primary meridian planes).
Three gates of the cortical shell kidney-shaped, on the inside with an interradial spine, twice as broad as the three pentagonal arms.
Four perradial beams (crossed in two perpendicular diameters) beginning from the circular central chamber, four interradial beams from the first or second ring (sometimes others between them).
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "interradial" in a variety of sentences. We hope that you will now be able to make sentences using this word.
