FIGURE 21 in New species and records of Scissurellidae and Anatomidae from the Americas (Mollusca: Gastropoda: Vetigastropoda)

FIGURE 21. Anatomy of Thieleella peruviana n. sp. A. Head-foot complex from left side. Scale bar = 1 mm. B. Cephalic tentacle and suboptic tentacle enlarged; note absence of eye or eyestalk. Scale bar = 100 µm. C. Epipodial tentacles with bi-serial papillae on anterior and posterior margin. Box shows enlarged area shown in D. Scale bar = 100 µm. D. Tip of epipodial tentacle with papillae Scale bar = 20 µm. E. Ventral view of epipodial tentacle and potential epipodial sense organ. Scale bar = 100 µm. F. Mantle tentacles at posterior junction of slit. Scale bar = 100 µm. act: accessory cephalic tentacle. ct: cephalic tentacle. ESO: epipodial sense organ. et: epipodial tentacle. oa: opercular attachment site. sn: snout. st: suboptic tentacle. vm: visceral mass.