Tipos de conchas
Elas são basicamente carapaças protetoras dos moluscos marinhos, animais de corpo mole. Quando eles nascem, forma-se a seu redor uma concha provisória, chamada protoconcha. Quando o molusco cresce e atinge a idade jovem, começa a se constituir a concha definitiva, substituindo a primeira.
Abaixo colocamos alguns tipos bem curiosos...
Conchas polidas para mostrar a coloração interna do seu nacar (madre pérola).
![](https://static.wixstatic.com/media/f71c50_9dc3f15d21994b68be266edb91844b01~mv2.jpg/v1/fill/w_450,h_376,al_c,q_80,enc_auto/f71c50_9dc3f15d21994b68be266edb91844b01~mv2.jpg)
Mexilhão dourado.
![](https://static.wixstatic.com/media/f71c50_02f9e88a4ba844228eefdd5246ad65ae~mv2.jpg/v1/fill/w_496,h_250,al_c,q_80,enc_auto/f71c50_02f9e88a4ba844228eefdd5246ad65ae~mv2.jpg)
Hohonia australis.
![](https://static.wixstatic.com/media/f71c50_14f8b48953844c3dab21bada3c3add39~mv2.jpg/v1/fill/w_768,h_290,al_c,q_80,enc_auto/f71c50_14f8b48953844c3dab21bada3c3add39~mv2.jpg)
Conus chaldeus (Indo Pacífico).
![](https://static.wixstatic.com/media/f71c50_36fa377a40df41d4839118eedd6ce79c~mv2.jpg/v1/fill/w_450,h_310,al_c,q_80,enc_auto/f71c50_36fa377a40df41d4839118eedd6ce79c~mv2.jpg)
OUTRAS...
![](https://static.wixstatic.com/media/f71c50_6dc8aab5ee1b44acbb7f095e49cfb031~mv2.jpg/v1/fill/w_800,h_800,al_c,q_85,enc_auto/f71c50_6dc8aab5ee1b44acbb7f095e49cfb031~mv2.jpg)
![](https://static.wixstatic.com/media/f71c50_093315af13384e1dbaa97a5593877f8b~mv2.jpg/v1/fill/w_900,h_427,al_c,q_85,enc_auto/f71c50_093315af13384e1dbaa97a5593877f8b~mv2.jpg)
![](https://static.wixstatic.com/media/f71c50_c06c2cd979704402b127dddf5bcaf79b~mv2.jpg/v1/fill/w_980,h_638,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/f71c50_c06c2cd979704402b127dddf5bcaf79b~mv2.jpg)
![](https://static.wixstatic.com/media/f71c50_e5f0c8272b484024b099566270a4662b~mv2.jpg/v1/fill/w_400,h_250,al_c,q_80,enc_auto/f71c50_e5f0c8272b484024b099566270a4662b~mv2.jpg)