A moonless, cloudless night. The little praam takes the ground in the bay a few yards from the beach, and in the midst of a constellation of “jelly-fishes” spherical in form and varying in size. The larger are so many pale blue orbs floating lazily in a luminous mist, the only visible manifestation of life being a delicate but rhythmical deepening of the central hue. The wash of my wading seems not to affect them. I become conscious of the sudden appearance and swift disappearance of lesser spheres of startling brilliance. They emerge from nothingness, pause for a moment, and shoot towards me with extraordinary impulse. Each is a mere globule, resplendently blue. The tint intensifies as with accelerated velocity the atom flies until of its own excessive energy it explodes with a shell-like flash, leaving a sinuous trail of golden light. To burst into sight, gather force, to flash and slowly vanish--such is the sum of life of a speck of sea-jelly. To be the centre towards which scores of the watery meteors gravitate, to witness their apparently spontaneous beginning, their swift, brief, but ineffectual career and lingering end, delights this night of darkness. How many of the race of man are there whose post-mortem glory outshines life tenfold? Beneath a slab of dead coral on the reef there was revealed one of those primitive and curious marine animals which has no common name, but which science recognises as SYNAPTA BESELLI. It is a relation of the béche-de-mer, of snake-like form, with a group of gills differentiating the head. Playing about it were three or four little fish which immediately took advantage of the only remaining cover, the body of the Synapta, snoodling beside it so artfully that they were quite concealed. The protector did not appear to resent the close company of the fish, which remained perfectly motionless. In a few seconds the Synapta began to extrude its feathery gills, which had been partly retracted on disturbance. I counted the gills, and while my forefinger indicated the sixth, a little fish, not previously noticed, appeared at the focus and edged off to the margin of the pool, now and again making decided efforts to regain its sanctuary. It was about an inch long and a third deep, ruby red, with pink undersides and pink, transparent fins. Three narrow bands of silver edged with lavender extended across the shoulder. Life gave it jewel-like lustre. The companionship between the slow and feeble Synapta, one of the most primitive of sea things, and the brilliant, agile fish may be another instance of commensalism.