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Unknown shells
12-11-2011, 03:20 AM,
Unknown shells
Hello everybody!

Here are some photos of unknown shells that belong to a collection of beach collected shells from the 20th century. They have no data, so any possible indication of location would also be of great help.

Best wishes,


1. [Image: PB200194.JPG]

[Image: PB200195.JPG]

2. [Image: PB200196.JPG]

3. [Image: PB200192.JPG]

[Image: PB200193.JPG]

4. [Image: PB200190.JPG]

[Image: PB200191.JPG]

5. [Image: PB120157.JPG]

[Image: PB120154.JPG]

6. [Image: PB120150.JPG]

[Image: PB120152.JPG]

7. [Image: PB120149.JPG]

[Image: PB120145.JPG]

[Image: PB120143.JPG]

12-18-2011, 02:28 AM,
Re: Unknown shells
The first threes look to come from Europe.
4 is perhaps Mitra coronata (indopacific).
5 seems to be a Cardidae from Carribean province

Hope it helps
12-18-2011, 02:55 AM,
Re: Unknown shells
Hi, Emma!
#3 reminds me of the very common Littorina littorea, but might be a little bit too large for this species (seldom reaching more than 3 cm hight).  :-\
#7 should be Cassidae, genus Phalium, perhaps near to Phalium flammiferum (Röding, 1798). This species reaches up to 9 cm hight.
Kind regards: wolf
12-18-2011, 05:22 AM,
Re: Unknown shells
Thanks so much Pierre and Wolf for your replies!! It is possible that the first 3 specimens are from Europe, any ideas about their family or name?

Best wishes,


12-18-2011, 06:44 AM,
Re: Unknown shells
Hi Emma,
well, #3 should be family Littorinidae, perhaps the rather variable Littorina littorea, as said before (with some little doubt left because of the size, but I have seen some specimens of this species with a hight of about 3,3 cm).
#1 and #2 should be family Trochidae, but without knowing the origin it's extremely difficult for me to say anything more..... . Sorry for that.
Kind regards: wolf
12-18-2011, 07:42 AM,
Re: Unknown shells
Hi Wolf,

I think the origin of 1, 2 and 3 is probably Great Britain, although I can't be sure. All the shells are specimens collected during the 20th century, mainly the 1920's and 1930's, so a bigger size is possible. The other shells pictured are all foreign specimens, from the Pacific or like.

Thanks for your help!

Warm regards,

12-19-2011, 09:08 PM,
Re: Unknown shells
1 is maybe Gibbula magus

2 may also be a smaller Gibbula but the shell is in bad condition

3 a Littorina as wolfi wrote, also perhaps Littorina saxatilis


12-19-2011, 10:08 PM,
Re: Unknown shells
Hm, really difficult (for me, at least).
The perspective / angle of the photo is not so very helpful, too........ .
Sorry indeed, but as far as I remember, Gibbula magus has a rather depressed, stairs-like shell with clearly defined sutures, normally with prominent knots above the periphery of the whorls.
But, again, it's kind of tricky....... :-\.
Kind regards Smile: wolf
12-20-2011, 03:10 AM,
Re: Unknown shells
Thanks Pierre and Wolf for your imput!
Best wishes and Happy Christmas!

12-26-2011, 06:48 AM,
Re: Unknown shells
#5 is Trachycardium muricatum (Linnaeus, 1758)

Florida to Brazil.

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