27 May 2007

A young Helix aspersa

youngHaspersa1

The edible snail Helix aspersa, also known as Cantareus aspersus or as Cryptomphalus aspersus, has been spread all over the world by humans. Their land of origin may have been southern Europe. They have also been introduced to Turkey, perhaps by the Romans who liked to eat them, and are quite common in western Turkey in gardens, fields and ruins. Thanks to the unique patterns on their shells, they are among the easiest land snails to identify.

I found this young individual in Istanbul. I could tell that it hadn't completed its growth yet, because the edge of the aperture was quite soft. This soft area was marked off as a band ~3 mm wide (arrow in the photo). The veins covering the wall of the snail's lung were not visible thru this band, indicating that it was less translucent than the older portions of the shell. Either that or the lung didn't extend under the part of the shell that was still being built.

youngHaspersa2


The last picture shows the snail's pneumostome, the breathing hole, thru which the lung opens to the outside.

youngHaspersa3

6 comments:

Vasha said...

That is a beautiful beast, so healthy and active looking; would seem like a shame to eat it.

AYDIN ÖRSTAN said...

You can say that about chickens too & I just had barbequed chicken for dinner.

(I let that snail go, by the way.)

Anonymous said...

The photos and notes are both beautiful and informative. Thank you!

nemo said...

Aydın bey,
Blog'unuzu zevkle okuyorum, benim de kendi çektiğim fotoğrafları koyduğum bir weblogum var, http://nemoramjet.blogspot.com/ adresinde. Geçen gece bir salyangoz resmi çektim ve ekledim, bana Helix aspersa gibi geldi, ama tam olarak emin olamadım. Bir ara bakarsanız bu tanımı doğrulayabilir misiniz?

AYDIN ÖRSTAN said...

Nemo,
Senin salyangoz Eobania vermiculata.

Senin blog'da comment bırakamadım onun için cevabı buraya yazıyorum.

nemo ramjet said...

Çok teşekkür ederim, şimdi update ediyorum :) Helix ile farkını nereden anladınız?

Bu arada weblogumda nedeni bilinmez comment ve başlık gözükmüyor, settingleri değiştirmeme rağmen böyle bir sorun var...