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Fig. 4 | Zoological Letters

Fig. 4

From: Homology of the head sensory structures between Heterotardigrada and Eutardigrada supported in a new species of water bear (Ramazzottiidae: Ramazzottius)

Fig. 4

The mouth opening and the buccal-pharyngeal apparatus of Ramazzottius groenlandensis sp. nov. Differential interference contrast microscope (DIC) images and SEM images: A, B, E–I SEM images; C, D DIC images. A anterior view of the mouth and the peribuccal lobes. Arrow and arrowhead indicate the peribuccal lobe and the mouth opening, respectively. B oral cavity armature with two bands of teeth and perforated area. Arrow and arrowhead indicate the first band and the second band of teeth, respectively. C ventral view of the buccal-pharyngeal apparatus. D oblique lateral view of the buccal-pharyngeal apparatus. E ventral view of the buccal-pharyngeal apparatus. F lateral view of the buccal-pharyngeal apparatus. G ventral view of the apophysis for the insertion of the stylet muscles (AISM). Arrows indicate the posterior tips of AISM. H oblique lateral view of the AISM. I placoids. Arrows indicate placoid constrictions

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Zoological Letters

ISSN: 2056-306X

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