Maculae coeruleae and Phthirus pubis

Abstract
The salivary glands (Fig. 1) consist of two pairs situated between the anteriorly protruding coeca of the midgut. The one pair are bean- or kidney-shaped (b) the other horseshoe-shaped (h) and extend further backward close to the gut. The four ducts of these glands run forward along the oesophagus, unite, and form a common duct emptying between the dorsal and ventral chitinous stylets of the mouth-parts.