Organisms Diversity & Evolution 1 (2001)
Electronic Supplement 5

Fig. 6. Transverse section of A. alicemartinae (azocarmine triple staining). Ap: lumen of actinopharynx; Ec: ectoderm; Im: pair of imperfect mesenteries; M: mesogloea; Mf: trilobate mesenterial filament; Pb: parietobasilar muscle; Pm: pair of perfect mesenteries; R: retractor; Si: siphonoglyph.