Hymenolepis diminuta (continued)
OVA
SIZE: about 70 mcm (medium to large).
SHAPE: Round to ovoid.
COLOR: Brown.
OPERCULUM: Absent.
CONTENTS: Hexacanth oncosphere.
MISCELLANEOUS: Sculptured outer shell, no bipolar filaments.
ADULT
SIZE: 20 to 60 cm.
COLOR: Grayish white.
SCOLEX
SIZE: 0.5 by 0.8 mm (small).
SHAPE: Club-shaped.
ROSTELLUM: Rudimentary, with apical process, unarmed.
PROGLOTTID
SIZE: 2.5 mm wide.
SHAPE: Trapezoidal.
GENITAL PORE: Single, lateral.
UTERUS: Tubular.
OVARIES: Bilobed.
TESTES: Three, round, and large.
Figure 3-49. Stages of Hymenolepis diminuta.
MD0842
3-57