Skip to main content
. 2017 Sep 6;525(18):3890–3917. doi: 10.1002/cne.24309

Figure 2.

Figure 2

Trichrome stained sections of A. rubens. (a) This section runs transversely across the middle of the central disk region and parasagittally through two arms. (b) Transverse section of an arm. (c–e) Horizontal sections through the central disk and arms of a juvenile specimen, with (c) at the level of the esophagus, (d) at the level of the circumoral nerve ring and (e) at the level of the highly folded pouches of the cardiac stomach. Abbreviations: ADO, adambulacral ossicle; AM, apical muscle; Am, ampulla; AMO, ambulacral ossicle; CE, coelomic epithelium; CO, carinal ossicle; CONR, circumoral nerve ring; CS, cardiac stomach; Es, esophagus; MO, marginal ossicles; Pa, papulae; PC, pyloric caeca; PD, pyloric duct; Pe, pedicellariae; PM, peristomial membrane; PS, pyloric stomach; RC, rectal caeca; Re, rectum; RNC, radial nerve cord; RO, reticular ossicles; Sp, spine; TF, tube feet. Scale bars: 500 μm in (a), (b); 200 μm in (c), (d), (e)