A, Specimen from the Ebro River. Scale bar = 2cm.
B, Detail of the inhalant siphon papillae in a live specimen.
C, Ova in the water tubes of a female specimen.
D, Glochidia of Spanish U. mancus. Scale bar = 200mm.
E, Detail of the styliform hook.
F, One week old U. mancus juveniles. Scale bar = 200 mm.