In reptiles, the supralabial scales, also called upper-labials, are those scales that border the mouth opening along the upper jaw. They do not include the median scale [1] (rostral scale). The term labial originates from Labium (Latin for "lip"), which refers to any lip-like structure. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another.
Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology.
The rostral scale, or rostral, in snakes and other scaled reptiles is the median plate on the tip of the snout that borders the mouth opening. It corresponds to the mental scale in the lower jaw. The term pertains to the rostrum, or nose. In snakes, the shape and size of this scale is one of many characteristics used to differentiate species from one another.
Standard anatomical terms of location deal unambiguously with the anatomy of animals, including humans.
Dendrelaphis pictus is a species of snake found in Southeast Asia and India.
Gonyosoma frenatum is a species of colubrid snake found in Southeast Asia.
Lycodon aulicus, commonly known as the Indian wolf snake, is a species of nonvenomous snake found in South Asia and Southeast Asia. Early naturalists have suggested its resemblance to the venomous common krait as an instance of Batesian mimicry.
The painted keelback is a species of colubrid snake found in Pakistan, Nepal, Bangladesh, and India. This snake is also called the dark-bellied marsh snake.
Sibynophis subpunctatus, commonly known as Duméril's black-headed snake or Jerdon's many-toothed snake, is a species of nonvenomous colubrid snake endemic to Bangladesh, India and Sri Lanka.
Psammophis condanarus, the sand snake, is a species of snake found in dry low country zones of Indian peninsula, Pakistan and Nepal. It is a fast-moving, diurnal, terrestrial species and lives in stony outcrops and boulders. It was first described from Ganjam area of Odisha State and then later on recorded from many parts of the Indian subcontinent.
Heterodon is a genus of harmless colubrid snakes endemic to North America. They are stout with upturned snouts and are perhaps best known for their characteristic threat displays. Three species are currently recognized. Members of the genus are commonly known as hog-nosed snakes, North American hog-nosed snakes, and sometimes puff adders.
Vipera ammodytes meridionalis is a venomous viper subspecies endemic to Greece and Turkish Thrace.
The labial scales are the scales of snakes and other scaled reptiles that border the mouth opening. These do not include the median scales on the upper and lower jaws. The term labial originates from Labium, which refers to any lip-like structure. In snakes, there are two different types of labial scales: supralabials and sublabials. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another.
The mental scale, or mental, in snakes and other scaled reptiles refers to the median plate on the tip of the lower jaw. It is a triangular scale that corresponds to the rostral of the upper jaw. The reference to the term 'mental' comes from the mental nerve which addresses the chin and lower jaw in animals. In snakes, the shape and size of this scale is sometimes one of the characteristics used to differentiate species from one another.
In reptiles, the sublabial scales, also called lower-labials or infralabials, are those scales that border the mouth opening along the lower jaw. They do not include the median scale. The term labial originates from labium, which refers to any lip-like structure. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another.
The Cameroon racer, Poecilopholis cameronensis, is a species of fangless venomous snake endemic to Africa. Poecilopholis is a monotypic genus created for this species.
Amblyodipsas dimidiata, or the Mpwapwa purple-glossed snake, is a species of venomous rear-fanged snake in the Atractaspididae family.
Atractaspis aterrima, commonly known as the slender burrowing asp or mole viper, is a species of fossorial, venomous snake in the family Atractaspididae. The specific epithet, aterrima, meaning "blackest", is the superlative form of the Latin adjective ater, meaning "black".
Polemon acanthias, or Reinhardt's snake-eater, is a species of venomous rear-fanged snake in the family Atractaspididae. It is endemic to Africa.
Polemon gabonensis, or the Gaboon snake-eater, is a species of venomous rear-fanged snake in the family Atractaspididae. It is endemic to Africa.
Xenocalamus bicolor, or the slender quill-snouted snake, is a species of venomous rear-fanged snake in the family Atractaspididae. It is endemic to Africa.
Rhinotyphlops unitaeniatus, commonly known as the yellow-striped blind snake or the Kenya beaked snake, is a species of snake in the Typhlopidae family. It is endemic to Africa.
Afrotyphlops obtusus, also known as the slender blind snake or southern gracile blind snake, is a species of snake in the Typhlopidae family. It is endemic to Africa.
Wikimedia Commons has media related to Labial scales . |