amphibians, the sexual clasp of a female by the male.
turtles, the upper portion of the shell.
Cirrus: In some
salamanders, the pair of slender appendages protruding from the front of
the upper lip.
Cloaca: The common
opening for reproduction and waste excretion.
Costal Groove: In salamanders, the
vertical depressions along the side of the body.
Cranial Crest: In toads, raised ridges
on the head. May be interorbital (between the eyes) or postorbital
(behind the eyes).
Cusp: A toothlike projection in turtles.
Diploid: Having chromosomes in homologous
Dorsal: The upper surface.
Dorsolateral Fold: In frogs of the
genus Rana, one of the ridges extending from the eye along the dorsal
surface of the body.
Fossorial: Adapted for digging or
Frontal: In snakes and lizards, a
large central plate on top of the head between the eyes.
Gill Slit: One of the paired openings
from the pharynx to the outside, located just in front of the forelimbs.
Hemipenis: In lizards and snakes,
one of the paired copulatory organs.
Labial: In some reptiles, one of the
scales bordering the lip.
Marginals: In turtles, the scutes on the
outer edge of the carapace.
Melanistic: More than normal amount
of the black pigment, melanin.
Mental Gland: In salamanders, a gland
beneath the chin in some males. Secretes a subtance that is a sexual
stimulant to females.
Nasolabial Groove: In salamanders
in the family Plethodontidae, a groove extending from the naris (nasal
opening) to the upper lip.
Paratoid Gland: In toads, a glandular
swelling behind each eye.
Phalanges: The finger bones.
Pheromone: A substance secreted by
an individual that influences a physiological or behavioral response from
another individual of the same species.
Pit: In pit vipers, a deep cavity
between the eye and nasal opening which serves as an infrared detector
in locating warm-blooded prey.
Plastron: In turtles, the lower portion
of the shell.
Scute: In reptiles, a modified (usually
Spiracle: In tadpoles, an opening
to the outside from the gill chamber.
Tetraploid: Having chromosomes in
two homologous pairs.
Venter: The belly.
Ventral: Pertaining to the lower surface.
Vocal Sac: In male frogs and toads,
an inflatable pouch in the throat or one of the inflatable pouches in the
sides of the neck.