Nasal scale

Nasal scale
Prenasal and postnasal scales

In reptiles, the nasal scale refers to the scale that encloses the nostril.[1]

Sometimes this scale is paired (divided). In such cases, the anterior half is referred to as the prenasal and the posterior half is referred to as the postnasal.[2]

Supranasal scales are located above the nasal scale.[1]

See also

References

  1. ^ a b Mallow D, Ludwig D, Nilson G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Malabar, Florida: Krieger Publishing Company. 359 pp. ISBN 0-89464-877-2.
  2. ^ Wright AH, Wright AA. 1957. Handbook of Snakes. Comstock Publishing Associates (7th printing, 1985). 1105 pp. ISBN 0-8014-0463-0.

Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • nasal scale — noun : naricorn …   Useful english dictionary

  • Nasal — may refer to: Nose, a protuberance in vertebrates that houses the nostrils, or nares, which admit and expel air for respiration in conjunction with the mouth Nasal bone, two small oblong bones placed side by side at the middle and upper part of… …   Wikipedia

  • Nasal — Na sal, n. 1. An elementary sound which is uttered through the nose, or through both the nose and the mouth simultaneously. [1913 Webster] 2. (Med.) A medicine that operates through the nose; an errhine. [Archaic] [1913 Webster] 3. (Anc. Armor)… …   The Collaborative International Dictionary of English

  • Nasorostral scale — In reptiles, the nasorostral is an enlarged and usually paired scale, just behind the rostral[1] (and in front of the nasal scale). Related scales Rostral scale Nasal scale See also Snake scales References ^ Mallow D, Ludwig D, Nilson G. 2 …   Wikipedia

  • Epworth sleepiness scale — The Epworth sleepiness scale (ESS) is a questionnaire intended to measure daytime sleepiness. This can be helpful in diagnosing sleep disorders. It was introduced in 1991 by Dr Murray Johns of Epworth Hospital in Melbourne, Australia.cite journal …   Wikipedia

  • Snake scales — Snakes, like other reptiles, have a skin covered in scales. Boulenger, George A. 1890 The Fauna of British India. page 1] Snakes are entirely covered with scales or scutes of various shapes and sizes. Scales protect the body of the snake, aid it… …   Wikipedia

  • Egernia — Pygmy Spiny tailed Skink (Egernia depressa) a small species of Egernia sensu stricto Scientific classification Kingdom …   Wikipedia

  • Vipera ammodytes transcaucasiana — Taxobox name = Vipera ammodytes transcaucasiana regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Reptilia ordo = Squamata subordo = Serpentes familia = Viperidae subfamilia = Viperinae genus = Vipera species = V. ammodytes… …   Wikipedia

  • Atheris desaixi — Scientific classification Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata …   Wikipedia

  • Vipera albicornuta — Taxobox name = Vipera albicornuta regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Reptilia ordo = Squamata subordo = Serpentes familia = Viperidae subfamilia = Viperinae genus = Vipera species = V. albicornuta binomial =… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”