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Lamellae on a gecko's foot. In surface anatomy, a lamella is a thin plate-like structure, often one amongst many lamellae very close to one another, with open space between. Aside from respiratory organs, they appear in other biological roles including filter feeding and the traction surfaces of geckos. [1]
The interactions between the gecko's feet and the climbing surface are stronger than simple surface area effects. On its feet, the gecko has many microscopic hairs, or setae (singular seta), arranged into lamellae that increase the Van der Waals forces - the distance-dependent attraction between atoms or molecules - between its feet and the surface.
Tarentola mauritanica, known as the common wall gecko, is a species of gecko native to the western Mediterranean area of North Africa and Europe. It has been introduced to Madeira and Balearic Islands , and the Americas (in Montevideo, Buenos Aires and California).
Snout longer than the distance between the eye and the ear-opening, 1.5 times the diameter of the orbit; forehead concave; ear-opening rather large, suboval, vertical. Body and limbs stout. Digits free, inner well developed, strongly dilated; with straight transverse lamella beneath; 11 or 12 under the inner digits, 13 to 15 under the median.
Body and limbs short. Digits short, free, with very short distal joints, moderately dilated; 5 or 6 lamella under the inner digits, 7 or 8 under the fourth finger, and 8 or 9 under the fourth toe. Snout covered with keeled granules; the rest of the head with smaller granules intermixed with round tubercles.
Hemidactylus is a genus of the common gecko family, Gekkonidae. [3] [4] It has 195 [5] described species, newfound ones being described every few years.These geckos are found in all the tropical regions of the world, extending into the subtropical parts of Africa and Europe.
The common house gecko (Hemidactylus frenatus) is a gecko native to South and Southeast Asia as well as Near Oceania. It is also known as the Asian house gecko, Pacific house gecko, wall gecko, house lizard, tiktiki, chipkali [3] or moon lizard. These geckos are nocturnal; hiding during the day and foraging for insects at night.
Carphodactylus laevis, illustration from original description, 1897. C. laevis has an average snout-to-vent length (SVL) of 13 cm (5.1 in). The head has large labial (lip) scales, relatively small postmental scales (behind the chin), and rounded rostral and mental shields (at the tip of the snout).