Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 807
rgo a regular metamorphosis, the young of the Cray-fish and some Land-crabs come-forth from the egg in a form whichcorresponds in all essential particulars with that of their parents.Generally speaking, a strong resemblance exists among the youngof all the species of Decapods which undergo a… … Metamorphosis of Carcinvs mrr.nas :—A, first or Zoea stage ;B, second or Megalopa stage ; c, third stage, in which it beginsto assume the adult form ; D, pex-fect form. different from any of those into which they are ultimately to bedeveloped, that they were considered as belonging to a…
Microscopy · Biology
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