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Fig. 5 | Zoological Letters

Fig. 5

From: New insights into the morphology and evolution of the ventral pharynx and jaws in Histriobdellidae (Eunicida, Annelida)

Fig. 5

Fine structure of the ventral pharyngeal organ (VPO) and jaws of Histriobdella homari. Parasagittal section, TEM images. a. General overview of the VPO. Black asterisks mark nuclei of the gnathoepithelial cells. b. Сontact zone between muscle fibers of the ventral bulb and the ventral carrier retractor. White asterisks mark the zone with dense hemidesmosomes. dr, dorsal rod; drf, dorsal rod flexor; ep, epithelium of the median VPO invagination; gep, gnathoepithelial cell; mfb, muscle cell of the ventral bulb; mi, median VPO invagination; n, nucleus; sh, mandibular shaft; vb, ventral muscle bulb; vcr, ventral carrier retractor

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Zoological Letters

ISSN: 2056-306X

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