- Haller's organ:
- an oval organ on the tarsus of ticks.
- discharge of blood from blood vessels.
- hair loss:
- significant loss of hair resulting directly or indirectly from a disease
- large hooks on the opisthaptor of Monogenea.
- developmental pattern in Insecta, in which a series of nymphal stages are
- an individual possessing male and female reproductive systems (not
- a life cycle in which more than one host individual is parasitized.
- a six-hooked embryo of cestoda.
- microscopic abnormalities in cell and tissue structure caused by external
agents or disease, and their study.
- developmental pattern in Insecta, involving larva and pupa.
- a life cycle in which only one host is parasitized.
- a hard, curved structure, usually of complex shape, used for attachment of
parasite to host.
- host specificity:
- the degree to which a parasite is capable of infecting and developing
within only a limited number of host species.
- clear and acellular.
- a bladder larva of Cestoda characterized by internal (and often external)
chambers lined by germinal epithelium.
- hydrostatic skeleton:
- a skeletal system in which support is derived by internal fluid pressure.
- sclerotized, median, ventral mouthparts of ticks, often with recurved teeth
used for attachment.