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Fig. 4 | Zoological Letters

Fig. 4

From: First description of epimorphic development in Antarctic Pallenopsidae (Arthropoda, Pycnogonida) with insights into the evolution of the four-articled sea spider cheliphore

Fig. 4

Prehatching embryo of Pallenopsis hodgsoni. SEM micrographs (a, d) and stereomicroscopic images of Sytox-stained specimens (b, c, e, f). The arrow points at the slit-shaped proctodeum anlage. a & b Ventral view. The asterisk in a marks the area in which the right cheliphore has been removed. Note the presence of walking leg pairs 2 and 3 underneath the embryonic cuticle. c Anterior view. d & e Lateral view. f Posterior view. Abbreviations: br – brain; ch – cheliphore; ovl – ovigeral larval limb; pal – palpal larval limb; pr – proboscis; wl – walking leg

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Zoological Letters

ISSN: 2056-306X

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