Samoana is a genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of tropical, air-breathing, land snail

Snail

Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

s, terrestrial

Terrestrial animal

Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonatel gastropod mollusks in the family Partulidae

Partulidae

Partulidae is a family of air-breathing land snails, terrestrial gastropod mollusks in the infraorder Stylommatophora, endemic to Pacific islands.- Genera :Partulidae is divided into three genera:* Eua has four species, confined to Tonga and Samoa....

.

Species

Species within the genus Samoana include::

• Samoana abbreviata, Short Samoan tree snail
  Short Samoan tree snail
  The short Samoan tree snail, Samoana abbreviata, is a species of gastropod in the Partulidae family. It is endemic to American Samoa....
  
  
• Samoana annectens
  Samoana annectens
  Samoana annectens is a species of gastropod in the Partulidae family. It is endemic to French Polynesia.-Source:* Mollusc Specialist Group 1996. . Downloaded on 7 August 2007....
  
  
• Samoana attenuata
  Samoana attenuata
  Samoana attenuata is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species is endemic to French Polynesia....
  
  
• Samoana bellula
• Samoana burchi
  Samoana burchi
  Samoana burchi is a species of a land snail, a terrestrial gastropod mollusk in the Partulidae family.It is endemic to Tahiti....
  
  
• Samoana conica
  Samoana conica
  Samoana conica is a species of gastropod in the Partulidae family. It is endemic to American Samoa....
  
  
• Samoana decussatula
• Samoana diaphana
  Samoana diaphana
  The moorean viviparous tree snail is a species of gastropod in the Partulidae family. It is endemic to French Polynesia....
  
  
• Samoana dryas
• Samoana fragilis
  Samoana fragilis
  Samoana fragilis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae.It is endemic to Guam and island Rota....
  
  
• Samoana ganymedes
• Samoana hamadryas
• Samoana inflata
  Samoana inflata
  †Samoana inflata was a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae.This species was endemic to Hiva Oa and Tahuata, in the Marquesas Islands. It is now extinct....
  
  †
  Extinction
  In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...
  
  
• Samoana jackieburchi †
  Extinction
  In biology and ecology, extinction is the end of an organism or of a group of organisms , normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point...
  
  
• Samoana magdalinae
• Samoana margaritae
• Samoana oreas
• Samoana solitaria
  Samoana solitaria
  The moorean viviparous tree snail is a species of gastropod in the Partulidae family. It is endemic to French Polynesia.-Source:* Mollusc Specialist Group 1996. . Downloaded on 7 August 2007....
  
  
• Samoana strigata
• Samoana thurstoni
  Samoana thurstoni
  Samoana thurstoni is a species of gastropod in the Partulidae family. It is endemic to American Samoa. It is threatened by habitat loss....
  
  

A cladogram

Cladogram

A cladogram is a diagram used in cladistics which shows ancestral relations between organisms, to represent the evolutionary tree of life. Although traditionally such cladograms were generated largely on the basis of morphological characters, DNA and RNA sequencing data and computational...

 showing phylogenic relations of Samoana and three of its investigated species:

Description

The genus Samoana was defined by American malacologist Henry Augustus Pilsbry

Henry Augustus Pilsbry

Henry Augustus Pilsbry was an American biologist, malacologist and carcinologist, among other areas of study. He was a dominant presence in many fields of invertebrate taxonomy for the better part of a century...

 in Manual of Conchology in 1909:
Pilsbry assigned six species to the genus Samoana that time in 1909.