Seychelles seashells

[conchylinet]

Hello,
I have these gastropods from Seychelles, can somebody help with their ID ?
Sizes are below each picture


[1] 22 mm


[2] 32 mm


[3] bad condition - 33 mm


[4] 10 mm


Ta
Pierre

[paul monfils]

1.  Thais alouina (immature) (Mancinella alouina in some books)
2.  Conus lividus (or Conus sanguinolentus, which some authors consider synonymous with C. lividus)
3.  Looks like a juvenile Cypraea, but can't ID the species
4.  There are a number of these tiny spotted Natica (or Naticarius) species, including N. concinna, N. mozaica, and N. pavimentum.  Not sure which one this is.  In all of them the spots are much darker in fresh shells.  I'm assuming this is a faded beach specimen?

[conchylinet]

Paul,
The #4 shell did not seem beached, it is still glossy and was found dead underwater while scuba diving. Thanks for the species tips. Pierre