. Birds of other lands, reptiles, fishes, jointed animals and lower forms; . - means of its skin-spinules,which take the form of anchors or grappling-hooks. In an opposite direction they maydevelop a supplementarj- covering of dermalplates and a more rigid integument, whichindicate their nearer relationship with sea-urchins. The majority of sea-urchins and star-fishes pass through a series of interestingmetamorphoses before arriving at the adultstate. The larval phases in these instancesare free-swimming organisms, having arm-likeprocesses, strengthened by calcareous rodsthat have been likened
. Birds of other lands, reptiles, fishes, jointed animals and lower forms; . - means of its skin-spinules,which take the form of anchors or grappling-hooks. In an opposite direction they maydevelop a supplementarj- covering of dermalplates and a more rigid integument, whichindicate their nearer relationship with sea-urchins. The majority of sea-urchins and star-fishes pass through a series of interestingmetamorphoses before arriving at the adultstate. The larval phases in these instancesare free-swimming organisms, having arm-likeprocesses, strengthened by calcareous rodsthat have been likened in contour to a clock-stand. A small spherical central area, like aclock in its case, representing the stomach ofthe larva, develops spicules around it, andbecomes the body of the urchin, the other. Phote by W. Savtllt-Kent, SEA-CUCUMBER, OR BECHE-DE-MER These ariimu/s are co/IecfcJ in vast quanlitifs on the Australian Great BarrierReef, smoked^ and sent to the Chinese market 354 THE LIVING ANIMALS OF THE WORLD ^ outlying portions becominggradually absorbed. Some ofthe brittle-stars and sea-cucumbers bring forth theiryoung in the adult form,nursing them from the egg in■special breeding-chambers. The capacity of a star-fishto renew its lost arms iscommonly manifested. A singledetached arm, moreover, in sucha type as the common five-fingered species, can reproduceits body and the remaining fourarms. Fishermen, who are inthe habit of tearing up star-fishes and throwing them backinto the water, under the im-pression that they are thuseftectuall)- incapacitating themfrom further injury to theiroyster-beds, commit an error,such mutilation tending to themultiplication of their the matter of colour-ornamentation the Star-fish group is richly endowed. Allusionto the br
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Keywords: ., bookcentury1900, bookdecad, booksubjectfishes, booksubjectzoology
