The Annals and magazine of natural history; zoology, botany, and geology . Echinocarclknn cordatiim (Penii.), Schizastcr frtit/ilis (Diib. & Ivor.),Ahatiis PhiUppii, n., Heiniaster cxperffitus, n. radium, by which it is enclosed, and separates from each otherthe eye-plates of the bivium and the lateral genital is no suture to form a boundary between the rightanterior genital plate and the madreporic area; and Avhen thelatter has a great extension it is this plate that first enters into 290 Prof. S. Loven on the Structure of the Echinoidea. it:—in some to a small extent, as mMeoma
The Annals and magazine of natural history; zoology, botany, and geology . Echinocarclknn cordatiim (Penii.), Schizastcr frtit/ilis (Diib. & Ivor.),Ahatiis PhiUppii, n., Heiniaster cxperffitus, n. radium, by which it is enclosed, and separates from each otherthe eye-plates of the bivium and the lateral genital is no suture to form a boundary between the rightanterior genital plate and the madreporic area; and Avhen thelatter has a great extension it is this plate that first enters into 290 Prof. S. Loven on the Structure of the Echinoidea. it:—in some to a small extent, as mMeoma ventricosa- in others,e. g. BrissbjJsiSj to a greater extent; and in some, Schizasterfragilis (Diib. & Kor.), so completely that the genital pore isabsent, and with it the right anterior interradial genital next in order to disappear are the genital pore and glandof the left anterior genital plate; and when, as in AbatusPhilijJinij n., and Palceostoma mirabile^ Grray, only two genitalpores remain, these are situated in the lateral genital j)late
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