Crossword-Solution: SEPTA 5 letters, 83 clues 🏆 scrabble score: 7

They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal.

These are doubtless flexible walls of compartments dividing the fleshy parts of the softer animals, and corresponding with the septa of the coral.

The adhesions were separated and the cyst tapped with a large trocar, and then the septa between the cysts were broken down with the fingers.

Like the nautilus, the ammonites all possess a coiled and chambered shell, but their especial characteristic is the complexity of the "sutures." By sutures is meant the edges of the transverse partitions, or septa, where these join the shell-wall, and their complexity in the fully developed genera is extraordinary, forming patterns like the most elaborate oak-leaf embroidery, while in the nautiloids the sutures form simple curves.

This diagram shows the quadripartite arrangement of the primary septa, characteristic of palæozoic corals, there being four principal and eight intermediate lamellæ, the whole number in this type being always a multiple of four.