A fossil, figured in one of the “chromo-plates” to this volume, has obtained the name of a “troglodyte;” I do not know why. I suspect it was one of the “asteridæ” when alive, but that in the death-struggle, the long arms collapsed and twisted together. I have frequently found what I believe to have been some such organ as the stomach of a star-fish in the centre of hard pebbles. The form was always pentagonal, like the corolla of certain flowers pressed flat. The “myriapod,” depicted in Plate V., I should at once conclude to have been a marine insect, answering to some of our “scolopendridæ,” if the _head_ were not lacking. But since the back or spine in this fossil is all in one piece, and there are no lateral plates or divisions for the several pairs of feelers, it may be, in accordance with such a frame, that the head fitted on without the apparent juncture of a neck; and if so, this may be an entire insect. It is right however to add, that I feel some doubts about this. The Plate VI. contains a figure of a fossil to which I have attached the name of “Spindle-choanite.” In fact, the specimen, until cut in twain, was fusiform; and, I have no doubt, a complete animal. The choanite from Eastbourne, _uncut_, Pl. IV., portrays a creature who, I think, expired in a vehement struggle. This would keep him on the surface of the siliceous flood; and it would harden, for the most part, beneath him, leaving his limbs sprawled out on the top of the pebble, as now seen. The beautiful “pyriform” specimen, Pl. VI., shows a similar struggle, amidst liquid agate and manganese. In the large Actinia, or “star-choanite,” portrayed in the frontispiece, the happy animal died quite quietly; and that is why his fossil mummy is of such a noble size and development. The figure called “Nondescript,” Pl. IV., I do not think represents any complete animal, but a part of the organization of one. I have traced its likeness, in the “Animal Kingdom,” by T. Rymer Jones; and think it not improvable that a woodcut at p. 364 of that most interesting volume depicts, in the _arms_ of one of the “Brachiopoda,” in that “calcareous loop” with its curved “crura,” the exact structure which, in the living animal, served to open or shut the bivalve shell, but in the fossil specimen looks like a miniature-painting on ivory, to perpetuate some curious organism in the liveliest colours of the pallet. “Terebratula Chilensis” is Mr. Rymer Jones’s animal; and in the very vicinity where I found my fossil in question, I have since obtained, in a flint pebble from the cliff, a beautifully petrified “Pecten” (same species of shell) in agate. * * * * *