Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 805
324. § Monograph of the Sub-Class Cirripedia^ published by the Eay Society. 18 METAMORPHOSIS OF CIERHIPEDS. large and strong anterior pair of prehensile limbs provided withan adhesive sucker and hooks, and of six pairs of posterior legsadapted for swimming. This bivalve shell, with the members… … Development of Balanus balanoides:—A, earliest form ; b,larva after second moult; c, side view of the same ; D, stageimmediately preceding the loss of activity; a, stomach (?);6, nucleus of future attachment (?). Balanus it expands into a broad disk of adhesion; the firstthoracic segment sends…
Microscopy · Biology
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