Minor minerals include schreibersite, rhabdite
, troilite, cohenite, graphite, and sphalerite (Buchwald 1975; Dominik 1976).
In the epidermis there are deeply located rhabdites and unicell glands which open to the surface.
It was possible to identify the epidermis containing rhabdites and glands; lumen of the pharynx; part of the pharynx cavity, and bowel lumen (see Table 1 and Figure 2).
The epidermis containing the rhabdites can be seen, together with the gastrovascular cavity and the lumen of pharynx.
Microscopic examination revealed that the blue coloration is in the rhabdites
. The ocelli are arranged in a single row on the anterior tip and extend along the lateral margin, but not dorsally.
The ventral epidermis presents cilia, and the dorsal epidermis, thicker than the ventral one, has rhabdites
as observed in juveniles.