Hymenolepis nana (Cont'd)
SIZE: 7 to 40 mm, inversely proportional to the number of parasites.
SIZE: 0.3 mm in diameter (small).
ROSTELLUM: Retractile, armed with a row of large hooklets.
SIZE: Less than 1.0 mm wide.
SHAPE: Trapezoidal, four times wider than long.
GENITAL PORE: Single, lateral
TESTES: Three, round, and large.
Figure 3-47. Stages of Hymenolepis nana.