Ancylostoma duodenale (Continued)
SIZE: 40 by 60 mcm.
SHAPE: Oval with bluntly rounded ends.
CONTENT: Yolk mass usually in cleavage (larva).
SHELL WALL: Thin, single layer.
MALE: 8 to 11 mm.
FEMALE: 10 to 13 mm.
SHAPE: Cylindrical; head is curved dorsally.
BUCCAL STRUCTURES: Two prominent pairs of teeth.
COPULATORY BURSA: Male.
PAIRED COPULATORY SPICULES: Separated.
SMALL PAIRED DORSAL RAYS: Tripartite.