SNAILS Hitch ride ID required good or bad???????

[Viper070]

hi Guys any ideas on what type of snails these guys r i searched the net but cant find any good id sites what do u guys id from ???????

Cant find in any of my books all i know is they came with my L/R imported from North western australia.

The star shaped ones started as to the photos r there babies they seem harmless mainly graz on algae on da glass an rock as far i know any info would be appreciated.

The other bloke of which there are 2 photos of im not to sure if hes a goodie or a baddy spotted him 1 week ago cant find any info any ideas fellas????

Well look forward to your replys u can add da photos to your faq if u like.

Cheers viper

 

[Viper070]

please note in the last photo the snail has i very well camoflaged cone shape top to his shell it is not patterned like the main body but it is there if u look closley.

 

[Anonymous]

The star shaped ones are probably an Asteraea sp.

 

[Anonymous]

Knowing where your rock came from, the pictures and your descriptions I can give you my guesses but without seeing the actual animals it would be impossible to say with certainty. The star shaped critter if it is a snail would be Patella chapmani (a limpet) and the cone shaped would be a species of either Trochidae or Turbinidae. All harmless critters.

Regards,
David Mohr

 

[Viper070]

ok well im not convinced on the "Patella chapmani" i did a search on google for it to find a photo and from what i read the " Patella chapmani "

Chapman's Limpet has an unusual southern Australian distribution. It is found on most shores of NSW, SA, and Tas, extending to Dongarra WA, but is uncommon in Vic. (NSW, SA, TAS, WA).

My rock was gathered from northern Western Aus, Dongarra is located on the southern coast of Australia

Chapman's limpet has a distinctive shell with eight radiating ribs. It grows to a shell length of 30mm and a width of 15-20mm. The shell is roughly oval and is broader at the rear than it is at the front.

got the info from
http://www.deh.gov.au/cgi-bin/species-b ... l?id=78113

i think that is the same species u nominated

i was able to find one of the adult snail on the rear wall at the bottom not possible to get a photo at this point will try latter tonight when they wake up but i was able to count 9 spines on the critter the baby ones only had 8 so it would seem as the shell gets bigger more spines are created and also the airial veiw of the animal is closser to that of a circle rather then an oval and are by no means flat. if i u were look at the critter sitting on the ground from an ants point of veiw the snail looks like a tiangle with the base slightly curved upward and spines extending at what seems to be set distances apart.

Thanx for the reply cheers viper

 

[Viper070]

ok i stuffed the quotes up but u get da picture