Two Gapers

Sand Gaper (Mya arenaria)

I have shown the two gaper shells on one post to illustrate how different they are, beginning with the Sand Gaper above.

Sand Gaper (Mya arenaria)

A large and robust bivalve, the shell is oval in shape, the anterior end rounded, the posterior end more pointed.  It has concentric ridges and is off-white, grey or light brown in colour. Shell length 15cm.

The Sand Gaper burrows to a depth of 50cm into mud and sandflats, where it filters organic matter from sea water. It is often found in estuaries, and is widespread and locally common.


Blunt Gaper (Mya truncata)

Blunt Gaper (Mya truncata)

A thick-shelled, robust bivalve, rectangular in shape with a truncate posterior margin. It also has numerous concentric lines and is off-white in colour. Shell length up to 70mm.

It is commonly found in estuaries where it buries itself to a fair depth. Widespread and locally common, especially on the east coast of Britain.


Photographs taken April 2013, Llandudno, Wales. Camera Nikon Coolpix P500. © Pete Hillman 2013.

 

Advertisements

6 thoughts on “Two Gapers

Your thoughts ...

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s