A history of British star-fishes, and other animals of the class Echinodermata . four very short club-shaped appendages, or arms, at their anterior they are a little more developed, one can distinguishsome papillae disposed in five radiating series on the uppersurface. These young Starfishes move slowly, but uni-formly in a straight line, with their four arms in movement is probably effected by vibratile arms serve also to fix them to or enable them tocreep slowly along the sides of rocks. At the end oftwelve days, the five rays of the body, which till
A history of British star-fishes, and other animals of the class Echinodermata . four very short club-shaped appendages, or arms, at their anterior they are a little more developed, one can distinguishsome papillae disposed in five radiating series on the uppersurface. These young Starfishes move slowly, but uni-formly in a straight line, with their four arms in movement is probably effected by vibratile arms serve also to fix them to or enable them tocreep slowly along the sides of rocks. At the end oftwelve days, the five rays of the body, which till then wererounded, begin to grow; and after eight days more, thetwo ranges of feet, or tentacula, are developed under eachray, and can assist the movements of the animal by elon-gating and contracting themselves alternately, and byperforming the function of suckers. By that time theswimming movements have altogether ceased. At last,in the space of a month, the four original arms have alto-o-ether disappeared ; and the animal, at first symmetricalor binary, has become
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Keywords: ., bo, bookcentury1800, bookdecade1840, bookidhistoryofbritish00forb
