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. 2017 Feb 16;5:e2964. doi: 10.7717/peerj.2964

Figure 9. Exoskeletal structure of Garveia franciscana (Torrey, 1902).

Figure 9

(A) Exoskeleton of the hydranth, stained with HE; (B) exoskeleton of the hydrocaulus, stained with AB+PAS+H; (C) exoskeleton of the female gonophore with sporosacs of the styloid type, stained with HE; (D) exoskeleton of the hydrocaulus, stained with AB. Cyan-blue line indicates the outer layer of the exoskeleton (=exosarc), red line indicates the inner layer of the exoskeleton (=perisarc), asterisk indicates “perisarc extensions.” Abbreviations: c, coenosarc; ep, epidermis; gct, gastrovascular cavity; gn, gonadal cell cluster; gt, gastrodermis; inl, inner layer; oul, outer layer; t, tentacle.