Publisher's Synopsis
Excerpt from L. M.B.C. Memoirs, Vol. 6: On Typical British Marine Plants Animals; Lepeophtheirus and Lernaeea; (With 5 Plates)
The Copepod fish parasites are generally regarded as being composed of about sixteen somites. Usually, how ever, some of these somites are suppressed or fused together, forming one compound segment, the true character of which is rendered evident by the appendagesattached to it, each pair indicating a somite. At one end of the series, these parasites approach very nearly in structure and general appearance to the non-parasitic Copepods. At the other end they are extremely difierent, exhibiting most remarkable examples of retrograde development, and without a complete study of their life history it would be quite impossible to recognise them even as Crustacea.
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