Collected in leaflitter from a pukatea/hinau/rewarewa swamp forest remnant in Woodlands Retirement Village.
Small snail that I hadn't really taken any notice of while I was taking photos, but it moved between frames and caught my attention. Picture cropped from second photo (centre, bottom edge). Also see http://naturewatch.org.nz/observations/956041 and http://naturewatch.org.nz/observations/956042 for context.
spring tide today so a good time to go looking;)
I think these are what they are as I saw that name here when I was here last.
I think this tiny shell is a diloma. That is a mussel shell that it is cruising on.
A terrible photo taken at a funny angle, but I only noticed I'd captured this little snail when I was looking at a picture of a limpet.
Either Eatoniella, or Micrelenchus?
Was Zediloma atrovirens [Philippi] a common tidal zone shell where rocks are present. Listed AWB Powell, Shells of New Zealand, Plate 8 #11.
Can't be found in WoRMS or NZ Mollusca by either Genus or specific epithet. Mystified as to why it isn't in WoRMS at least as an antiquated name. Appears Suter p. 117 [= morio Suter non Troschel, 1851]
WoRMS lacks D. morio.
NB Close examination shows hole exposing umbilicus is damage. Please ignore this feature.
Some distinguishing features. Blue, freckled, apex turns through two distinct pitches [common in Diloma sp].
These tiny shells (no more than 5mm) were living in a cleft on a rock that is high in the intertidal zone and is exposed from about 2 hours after the high tide.
I thought Cantharidus turneri but wrong area and wrong zone, then Cantharidus sanguineus (cryptus form) as I suppose that I could say there is algae in the photo! LOL
Anyway, probably something completly different!
Alive under a shaded rock ledge at mid tide. Many small clumps.