Anterior is towards the top of the page and all views are of the dorsal surface (except b, which is a lateral view). Scale bars, 100 µm. Stages are as described in Irvine et al. (1999).

a. Stage L1, 18 h
b. Stage L3, 72 h
c. Stage L5, 36 days
d. Stage L7 (metamorphosed juvenile), 60 days.