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Conchylinet v.2.9 - 2014-04-16
2750663 visits since Jan. 2007.


[2018-06-20]  Conchylinet reached 2000 species!
Dear visitors, after having being over 10 years online, Conchylinet is pleased to annouce that its database holds over 2000 molluscs species. 2000
The species plates tool becomes more and more reliable for the identification of shelled and non shelled molluscs. Some Oceans part are still under-represented but the database covers more species than most general books.
[2017-10-25]  Mollusc taxonomy training workshop
Last week I had the chance to participate to the molluscs taxonomy workhop held in Mauritius and organized by the Mauritius Oceanography Institute (MOI).
For those interested I wrote a small report about it. To read it just click here.
[2017-01-12]  Seashells of New Zealand
NEW_ZEALAND Dear visitor, I wish you the best for this new 2017 year.
Today Conchylinet holds a decent number of common New Zealand species and can be used to perform identifications of shells from this part of the world. Most mollusks from NZ are not to be found anywhere else and are endemic of this two-islands state.
I recommend you to visit New Zealand Mollusca if you need a bigger species range, this site also includes micro molluscs and the terrestrial fauna.
[2015-12-31]  Toward 2016
Hello, 2015 comes to its end. I hope this year was good for you, for the Earth it was just another bad year which experienced the warmest year since we record temperature.
Looking at the recent past we can expect 2016 to be worse: pollution, poverty, nature resources declining... All of this because we, humans, are just too many. Unfortunately sciences, techs and civics advances are too slow to compensate overpopulation impacts. So, unless stopping spreading children, little can be done.
But it is still possible to admire what Nature has built and amongst all these wonders our molluscs and their shells!
[2015-03-21]  March 21, 2015. Tide of the Century
Today, the oceans experience an exceptionnal tide: Sun, Moon and Earth are aligned (an eclipse is visible from some places), plus the moon is closer to us than usual and it is the spring equinox time.
marée du siècle
As a consequence the tides will be very low in some places, and 6 hours later very high!
It is a rare opportunity to explore the coast as some areas usually under water will be dry ! but be careful not to get trapped by the raising tide.
[2014-04-16]  Shell shapes research and filter added
Shell shapes research and filter added SHAPES Dear visitor,
I just added a long developpement work to the interactive plates: now, you will be able to filter the species plates by shell general shape.
This feature is added to the already existing filter abilities. With this addition, Conchylinet has now an unique and powerful tool to help with the identification of the shells.

Click here to have more details about this new and unique feature, or start to play with it from the species interactive plates.

These filters will become more and more efficient with the continuing enrichment of the species diversity and distribution recorded in the database.
[2013-01-31]  Seychelles dredged species list
I have compiled a list of species I could observed and identify from the sand collected by Cristobal Colon vessel (see previous news). You can access the PDF file HERE.
Feel free to send comment about it.
[2013-01-05]  Keep an eye on dredge sands!
Dear visitor,
First, I wish 2013 to be better than 2012 for you, of course with plenty interesting mollusks discoveries.

By the end of 2012 I had the chance to be in Seychelles where I learnt about an industrial dredging operation that occurred 1 year ago.
After some investigations, I could visit the massive sand stock pile which was about half a million cubic metres! It has been sucked off Mahé island about 50m deep by the Cristobal Colon giant dredger vessel in two days.

No need to say that searching the whole pile was impossible but within a few hours and dig out a few species in decent conditions. They mainly consisted of bivalves dominated by Chlamys senatoria specie and Cucullaea labiata.

Keep checking the site as I will do soon an update with illustrations of these species and the others.
[2012-02-10]  Species research enhancement
Dear visitors,
The interactive plates have been once more upgraded: the ability to filter the collection at the order taxonomic level has been added.
Thanks to it, families group can be queried together. For example, you can select the Nudibranchia order which will show only the species of the families belonging to Nudibranchia.
The following links give example for:
  - Live nudibranchs (aka sea slugs)
  - Limpet-like species

Do not hesitate to play with it and share any classification mistakes you could detect. Thank you.
[2011-10-04]  Nudibranchs arrival
Dear visitor,
As a number of nudibranchs species have been observed (and photographied), I decided to add this group of gastropods molluscs to Conchylinet. Even if nudibranchs are shell free and seem exotic for this website, they still are marine gastropods and some of them have shapes and colour patterns as extraordinary as the most wonderful seashells.

Below are the direct links to the only 3 family available today on the site: Elysiidae, Phyllidiidae and Chromodorididae. Of course, these families become available from the interactive plates.
[2011-08-28]  Terebridae pictures
All pictures of Terebridae species (genus Hastula, Duplicaria and Terebra) have beem modified to improve the view of these high and narrow spired shells.
Former view presented the shell with the apex on top, now the shell are horizontal wich improve details on 4:3 format pictures as illustrated below.

Terebra upTerebra down
View all Terebridae.
[2011-03-13]  1000!
Dear visitor,
Conchylinet is proud to annouce that the number of species illustrated on the site has reached ONE THOUSAND! That number is roughly made of 360 bivalves and 640 gastropods. Of course this is still a very small figure compared to the worldwide diversity of mollusks (about 100 0 00species) but it shall enable you to see and compare most common shells that you may find during your shelling activities.

However, some geographical areas are under-represented such as Western Africa and WesternCentral America. If you can collect common shells from these places, do not hesitate to share your data.

Enjoy your visit & happy shelling
[2011-03-06]  2010 visits analysis
The 2010 visits report is now available. Click here to view it.
[2010-09-16]  Site update
Dear visitor,
A few improvements have been made to the Conchylinet database. As a consequence more features are enabled on the species interactive plates page:

  1. More countries are available in the country listbox. These few countries are listed out of the database because they reached a specific number of species observed. This is completely arbitrary, again more observations contributions would enable more countries.

  2. Choosing parameters will now filter all other dropdown list according to the user selection
e.g: Selecting sizes between 120 mm and 500 mm will filter the list of families where at least one specie has reached 120 mm.
e.g: Selecting a province will filter the list of countries where the countries belong to that province (note that a few countries, such as USA, can belong to more than one province).

  3. Plate setup options have been upgraded with the possibility to display the quick info box. This little box is colored according to the province, and the size category of the species is displayed inside. Its legend is given here. Leaving the mouse cursor upon it will reveal its content.
[2010-02-27]  2009 visits report
The 2009 visits report is now available. Click here to view it.
[2009-11-20]  Specific variations and distribution features added
Today a major enhancement has been done to Conchylinet: variations and distribution maps have been added on each specie description page.
The picture below shows the features of this page:
The variations are extra photographs to show other forms or colorations of the same specie. Now, just a few variations are online but expect to see more later on.
The distribution map is another Google Maps screen which displays dots on the world map. Each green dot is an occurrence of the specie recorded in Conchylinet database. The map is auto scaled to optimize the view of the distribution. But you still can zoom in, zoom out or pan to watch specific/closer area of the map.
As a consequence the loading of the specie pages is slower as every variations and the map are preloaded. Your browser needs to have javascript enabled to use these features.
[2009-07-14]  Warm welcome to the clams!
Dear Visitor,
Today I am pleased to announce that almost all the Veneridae has been re-photographied and are uploaded on Conchylinet. Veneridae is an important family of bivalves which represents almost 25% of the total bivalve species number of the collection.
For an easy browsing, choose the interactive plates and select Veneridae in the family dropdown listbox.
Do not hesitate to bring your feedback. And if you detect errors in the ids - especially within the Northeast Atlantic Venerupis, Tapes, and Paphia genus - I would be grateful to know about them.
[2009-03-21]  Mauritius seashells plates
Dear Visitors.
Due to the number of species recorded from Mauritius, I added a special plates tool for the species coming from that country. These plates include Mauritius island and Rodrigues island species.
The details provided for each of these species will be added along with the relevance of data collected from the field (such as depth, abundance estimate or habitat). I hope to make these 3 available on the popup details by the end of September 2009.
Enjoy your visit.

UPDATE: The Mauritian species plates are now available from the general species plates, just select MAURITIUS in the country dropdown list.
[2009-02-06]  2008 visits reports
A short notice to inform you that Conchylinet visits summary reports are going to be online. It has been made possible thanks to XiTi (Website auditing tool) which collect data about visitors.

The first report (year 2008) is now available. Click here to view it.
[2008-12-14]  Missing Nerita polita
A short trip to Rodrigues (a small mauritian island in south western Indian ocean) allowed me to observe some seashells. I was pleased to see a lot of live and beached species, but I was surprised not being able to spot a single Nerita polita . It is a small but attractive littoral specie which shell displays a wide range of colours and patterns.
I went to the same sites about 6 years ago and this specie was common.
I would like to be wrong, but what could be the reasons of this decline?
[2008-04-23]  Interactive map features
The first interactive map feature has been added thanks to the excellent Google Map API that enable an easy embedding of geography tools on web sites. Beware, Google is everywhere! Hence, the section collecting sites has been improved. On that 2.0 version, the page displays a map with all locations where shells have been reported, some of them have a picture or a detailed collect reports.
The most interesting thing about that is that you will be able to see what regions compose the specie diversity of Conchylinet, aswell as missing regions.
Do not hesitate to bring me your feed back about this feature.
[2008-01-06]  Happy new year 2008 !
Dear collectors,
First, I wish you all a very happy new year 2008. Sorry for the lack of updates in the end of 2007 but today a lot of new things have been uploaded on Conchylinet:
  - A lot of species mainly from the Indopacific province (mainly from Mauritius) have been added.
  - The Collecting section is up and running. If you are a beginner collector , you may perhaps find some collecting tips and advices there.
  - The Interactive Browser has been improved.
  - A few more sections have been translated into French.

Enjoy your visit and do not hesitate to bring your feedback!
[2007-06-09]  Mauritius
Sorry for the lack of recent updates and news.

I have moved to Mauritius and should be in this country for some time.
The next Conchylinet updates will deal with Mauritian species. Note that most of the species of Mauritius occur also in the whole indopacific's province.
A country parameter will be added on the interactive browser enabling to select Mauritius shells.
[2006-10-10]  Strange occurrences
On September 2006,Two dead tropical seashells have been found on the Atlantic coast of France.
  The first is a Cypraea moneta found amongst native shells on a beach of the Bordeaux area. It is an Indopacific specie. Has this shell been dropped by somebody ? Or by a vessel from this province ?
  The second is a Nerita virginea whose shell has been beached in southern Brittany next to Carnac. It is a very small specie that occurs in the Caribbean province. Again,how this shell has landed here ? Can the currents carry a shell from Caribbean to NE Atlantic ? Has it been carried by men ? Last possibility: a population is settling in this area and then live specimen should be found.

Anybody who experienced similar facts or who can provide more information on these kind of occurrences is welcome to share it !
[2006-09-28]  Conchylinet is online !
Dear visitor,
Conchylinet has been brought online on 2006,September 28th.
It is only on its first version. You will find bugs and bad English. But please be indulgent when visiting it. Furthermore, I am just starting to learn about website building, and languages like HTML and PHP are very new to me.
Conchylinet will be enhanced little by little according to the time I can spare on it and of course to your interest for it. Any suggestion to improve it are welcome.


[2024-02-28]  Species addition and Mitridae update
14 species of various origins have been added into the database. They are: Imbricaria flammea, Neocancilla rufescens, Euprotomus chrysostomus, Phyllocoma convoluta, Strigatella tristis, Conomurex persicus, Protapes rhamphodes, Neotiara lens, Semele modesta, Pteria penguin, Condylomitra bernhardina, Roseomitra rosacea, Strigatella imperialis and Pseudonebularia tabanula.
The Mitridae family has been reviewed and its taxonomy updated using WoRMS as reference.
[2024-01-09]  Species addition
9 species of various origins have been added into the database. They are: Conus mitratus, Siphonaria carbo, Casmaria natalensis, Afrolittorina praetermissa, Circe rugifera, Onchidium verruculatum, Spondylus microlepos, Goniobranchus verrieri and Melampus coffeus.
[2023-10-21]  Species addition
7 species of various origins have been added into the database. They are:
Conus guanche, Terebra armillata, Neobuccinum eatoni, Limaria basilanica, Gibberula miliara, Natica stellata and Notoacmea flammea.
[2023-08-22]  Species addition
11 species of various origins have been added into the database. They are: Marionia rubra, Patelloida profunda calamus, Glycymeris nummaria, Nacella kerguelensis, Turritella fultoni, Oxystele tigrina, Conus purpurascens, Azorinus minutus, Goniobranchus splendidus, Chama florida and Cypraea gracilis.
[2023-06-18]  Species addition
10 species from various provinces have been added into the database. They are: Cypraea pallidula, Strigatella litterata maculosa, Paphies angusta, Acanthochitona garnoti, Oxystele sinensis, Terebra knudseni, Strigatella retusa, Strigatella subruppelli, Nassarius kraussianus and Mytilus californianus.
[2023-05-14]  Species addition
11 species from various origins have been added into the database. They are: Mitra cornea, Circe quoyi, Spondylus echinatus, Mitrella ocellata, Fusinus rostratus, Nerita litterata, Fulvia fragilis, Ocinebra inornata, Haliotis ovina, Bedeva paivae and Natica rouxi.
[2023-04-17]  Species addition
10 species from various origins have been added into the database. They are:
Columbella andasoni, Acanthopleura vaillantii, Natica queketti, Americardia biangulata, Barnea obturamentum, Mitrella lincolnensis, Iredalea inclinata, Patella aspera, Clanculus atropurpureus and Littorina striata.