Crossword-Solution: GONIUM 6 letters, 1 clue 🏆 scrabble score: 9

Other forms related to _Volvox_, and sometimes met with, are _Gonium_, in which there are sixteen cells, forming a flat square; _Pandorina_ and _Eudorina_, with sixteen cells, forming an oval or globular colony like _Volvox_, but much smaller.

This globular mass of protoplasm is the egg cell, or female cell, and the cell containing it is called the "oögonium." When the egg cell is ripe, the oögonium opens by means of a little pore at one side (Fig.

Almost as soon as the oögonium opens, the spermatozoids collect about it and enter; but, on account of their minuteness, it is almost impossible to follow them into the egg cell, or to determine whether several or only one enter.

The central cell forms the egg cell, which in the ripe oögonium (_L_, _O_) is surrounded by five, spirally twisted cells, and crowned by a circle of five smaller ones, which become of a yellowish color when full grown.

After fertilization the outer cells of the oögonium become very hard, and the whole falls off, germinating after a sufficient period of rest.