Crossword-Solution: ECHINODERMATA 13 letters, 7 clues 🏆 scrabble score: 21

The advanced work at the Central Imperial College was in the closest touch with living interests and current controversies; it drew its illustrations and material from Russell’s two great researches--upon the relation of the brachiopods to the echinodermata, and upon the secondary and tertiary mammalian and pseudo-mammalian factors in the free larval forms of various marine organisms.

Peach is a votary of Natural History; not a student of the science in books, for he cannot afford books; but an investigator by sea and shore, a collector of Zoophytes and Echinodermata—strange creatures, many of which are as yet hardly known to man.

The Echinodermata (star-fishes, sea-urchins, &c.) are furnished with remarkable organs, called pedicellariæ, which consist, when well developed, of a tridactyle forceps—that is, of one formed of three serrated arms, neatly fitting together and placed on the summit of a flexible stem, moved by muscles.

All possible gradations, as he adds, may likewise be found between the pedicellariæ of the star-fishes and the hooks of the Ophiurians, another group of the Echinodermata; and again between the pedicellariæ of sea-urchins and the anchors of the Holothuriæ, also belonging to the same great class.

Mivart adduces this case, chiefly on account of the supposed difficulty of organs, namely the avicularia of the Polyzoa and the pedicellariæ of the Echinodermata, which he considers as “essentially similar,” having been developed through natural selection in widely distinct divisions of the animal kingdom.