. Cephalopoda. Cephalopoda. FIGURE 111. Very young stage of a species of Ommatostrephidae () from the Naples deep-sea plankton (cf. the advanced embryos in Vol. II, Plate XI) 15x. Dorsal and ventral views, reconstructed from drawings of a living animal. The lateral aspect is based on a preserved specimen after unsuccessful cocainization. However, the fins should project further laterally (as in Figure 88). a) and b) show the typical habitus of a very young larva, except for the tentacles, which are fused in the middle (cf. Chapter 32). Note the 4 stumpy arms with a single sucker, the sacli


. Cephalopoda. Cephalopoda. FIGURE 111. Very young stage of a species of Ommatostrephidae () from the Naples deep-sea plankton (cf. the advanced embryos in Vol. II, Plate XI) 15x. Dorsal and ventral views, reconstructed from drawings of a living animal. The lateral aspect is based on a preserved specimen after unsuccessful cocainization. However, the fins should project further laterally (as in Figure 88). a) and b) show the typical habitus of a very young larva, except for the tentacles, which are fused in the middle (cf. Chapter 32). Note the 4 stumpy arms with a single sucker, the saclike funnel, the general form of the head, and the translucent gills, anus and ink sac. Such a larva is the ultimate, still viable simplification of young Teuthoidea (cf. Figure 8E c. TYPICAL POSTEMBRYONIC DEVELOPMENT An idea of the earliest postembryonic stages of Oegopsida can be obtained by comparing Figure 111, Figure 67, and the youngest "larvae" of Ctenop- teryx, Pyroteuthis, and Calliteuthis (see also Vol. II, Plates VIII, XI, XII). These are very small, delicate animals (2-3 mm) with a saclike 5110 A 218. 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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