Sagartiogeton erythraios external anatomy
A, expanded living specimen;
B, lateral view of contracted, and preserved specimen;
C, lateral-oral view of preserved specimen, notice showing the acontia (arrow);
D, detail of a cuticulate tenaculum on the scapus, notice stratified cuticle.
Scale bars: A, 50 mm; B, 10 mm; C, 10 mm; D, 500 mm