Tag Archives: Partulina horneri

Partulina horneri Baldwin

Horner’s Partulina Snail (Partulina horneri)  

This species was described in 1895, it was endemic to the island of Hawai’i, Hawaiian Islands.  

The species was arboreal and was commonly found on the endemic Hawaiian ‘ahakea (Bobea elatior Gaudich.), and sometimes also on kawa’u (Ilex anomala Hook. & Arn.), ‘ohi’a lehua (Metrosideros polymorpha Gaudich.), and kolea lau nui (Myrsine lessertiana A. DC.).  


The author of the species also gave a description of the live animal.:  

Animal in motion longer than the shell. Mantle black, margined with gray. Foot above and below gray, the superior portions lightly granulated. Tentacles light gray.”  


Horner’s Partulina Snail was last seen in 1992, when it was restricted to two populations in the Hamakua- and Kohala districts respectively. [1]



[1] Michael G. Hadfield; Lisa J. Hadway: Conservation status of tree snail species in the genus Partulina (Achatinellinae) on the Island of Hawai’i: a modern and historical perspective. Pacific Science 53(1): 1-14. 1999  


Depiction from: ‘G. W. Tryon; H. A. Pilsbry; a.o.: Manual of Conchology. Second series: Pulmonata, Vol. 22: Achatinellidae. 1912-1914’  

(public domain)


edited: 08.10.2017