. Cephalopoda. Cephalopoda. I have many young specimens of Ctenopteryx from Naples and Messina, most of them early stages, but no adults. Joubin (l900) and Ashworth and Hoyle (l906) have published rather incomplete descriptions of adults. 253 EARLY JUVENILE FORMS The youngest stages are easily identified, although my specimens were not particularly well preserved (Figure 116). They are typical larvae of Oegopsida in which the third pair of arms consists of small papillae which are not visible in side view. The fourth pair of arms is smaller than the first and second pairs but resembles them in
. Cephalopoda. Cephalopoda. I have many young specimens of Ctenopteryx from Naples and Messina, most of them early stages, but no adults. Joubin (l900) and Ashworth and Hoyle (l906) have published rather incomplete descriptions of adults. 253 EARLY JUVENILE FORMS The youngest stages are easily identified, although my specimens were not particularly well preserved (Figure 116). They are typical larvae of Oegopsida in which the third pair of arms consists of small papillae which are not visible in side view. The fourth pair of arms is smaller than the first and second pairs but resembles them in form. The fins are small and widely separated and resemble those of the next stage, as far as this can be determined from their conserved (shrunken) condition. Particularly charac- teristic are the tentacles. They are short, thick stalks with characteristically flattened, widened, rounded clubs, with a chromatophore on the outer side. Their inner surface bears about 20 small suckers in more than 4, dense, irregular, longitudinal rows. There are 2 chromatophores on each side of the mantle. Both upper pairs of arms bear a well developed Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Naef, Adolf. Jerusalem : Israel Program for Scientific Translations
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectcephalopoda
