Brotia armata

[Zeitgeist]

Riferimenti:
- http://www.allesumdieschneck.de/html/brotia_armata.html
- http://www.aquariummalta.com/topic.asp?TOPIC_ID=3560&FORUM_ID=44&CAT_ID=19&Forum_Title=15%2E2%2E+Freshwater+Snails&Topic_Title=Notes%3A+Brotia+Armata