Loreal scales: Difference between revisions
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In snakes, the '''loreal scales''' are those on the side of the head located between the [[postnasal scale|postnasal]] and [[preocular scales]]. The number and location of these scales varies greatly. For example, they are absent in most [[coral snakes]], while most [[crotalines]] have at least one on either side of the head and often two or more. In some species of snakes, the postnasal and upper preocular may be in contact with each other, so that the loreals may be above or below this point of contact.<ref name="C&L04">Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.</ref> | In snakes, the '''loreal scales''' are those on the side of the head located between the [[postnasal scale|postnasal]] and [[preocular scales]]. The number and location of these scales varies greatly. For example, they are absent in most [[coral snakes]], while most [[crotalines]] have at least one on either side of the head and often two or more. In some species of snakes, the postnasal and upper preocular may be in contact with each other, so that the loreals may be above or below this point of contact.<ref name="C&L04">Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.</ref> | ||
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Revision as of 10:48, 4 November 2007
In snakes, the loreal scales are those on the side of the head located between the postnasal and preocular scales. The number and location of these scales varies greatly. For example, they are absent in most coral snakes, while most crotalines have at least one on either side of the head and often two or more. In some species of snakes, the postnasal and upper preocular may be in contact with each other, so that the loreals may be above or below this point of contact.[1]
Cited references
- ↑ Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. ISBN 0-8014-4141-2.