Seashells

1.

2.

3.

4.

shell – ракушка
[ʃel]
Tridacna Squamosa -
[traɪˈdæknə squamosa]
Тридакна Сквамоза
Cypraecassis Rufa Ципреекассис Руфа
[cypraecassis rufa]

5.

Tapestry Turbo –
[ˈtæpɪstrɪ ˈtɜːbəʊ]
Гобеленовый Турбо
scallops - гребешки
[ˈskɒləps]
Voluta Kuroda - Волюта [voluta kəˈrəʊd]
Курода

6.

Tonnes of giant – Тонна
[təʊnz ɒv ˈʤaɪənt]
Гигантская
Angaria - Ангария
[angaria]
Double-leaf -
[dʌbl-liːf]
Двустворка

7.

Ceramic vase – Вазум
[sɪˈræmɪk vɑːz]
Керамический
Аurantium - Аурантиум [А urantium]
harpa - Рапан
[harpa]

8.

Haliotis – Галиотисы
[haliotis]
The Drup - Друпа
[ðiː drup]
Lambis scorpio -
[lambis ˈskɔːpɪəʊ]
Лямбис Скорпион

9.

Cerebri – Теребра
[cerebri]
Harpa big - Харпа
[harpa bɪg]
Большая
Cymatium - Циматиум
[cymatium]

10.

Distorsio Anus –
[distorsio ˈeɪnəs]
Дисторсио Анус
Distorsio - Дисторсио
[distorsio]
Biplex Perk - Биплекс
[biplex pɜːk]
Перка

11.

Cone Letter – Конус
[kəʊn ˈlitəz]
Литер
Cone - Конус
[kəʊn]
Tibia - Тибия
[ˈtɪbɪə]

12.

Bursa – Бурса
[ˈbɜːsə]
Vexillum - Вексиллум
[vekˈsɪləm]
Bursed - Бурсид
[bursed]

13.

A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer
usually created by an animal that lives in the sea. The shell is part of the body of the
animal. Empty seashells are often found washed up on beaches by beachcombers.
The shells are empty because the animal has died and the soft parts have been eaten
by another animal or have decomposed.
A seashell is usually the exoskeleton of an invertebrate (an animal without a
backbone), and is typically composed of calcium carbonate or chitin. Most shells
that are found on beaches are the shells of marine mollusks, partly because these
shells are usually made of calcium carbonate, and endure better than shells made of
chitin.
Apart from mollusk shells, other shells that can be found on beaches are those of
barnacles, horseshoe crabs and brachiopods. Marine annelid worms in the family
Serpulidae create shells which are tubes made of calcium carbonate cemented onto
other surfaces. The shells of sea urchins are called "tests", and the moulted shells of
crabs and lobsters are exuviae. While most seashells are external, some cephalopods
have internal shells.
Seashells have been used by humans for many different purposes throughout
history and pre-history. However, seashells are not the only kind of shells; in
various habitats, there are shells from freshwater animals such as freshwater
mussels and freshwater snails, and shells of land snails.

14.

Seashells are commonly found in beach drift, which is natural detritus deposited
along strandlines on beaches by the waves and the tides. Shells are very often
washed up onto a beach empty and clean, the animal having already died.
Empty seashells are often picked up by beachcombers. However, the majority of
seashells which are offered for sale commercially have been collected alive (often in
bulk) and then killed and cleaned, specifically for the commercial trade. This type
of large-scale exploitation can sometimes have a strong negative impact on local
ecosystems, and sometimes can significantly reduce the distribution of rare species.
The word seashell is often used to mean only the shell of a marine mollusk. Marine
mollusk shells that are familiar to beachcombers and thus most likely to be called
"seashells" are the shells of marine species of bivalves (or clams), gastropods (or
snails), scaphopods (or tusk shells), polyplacophorans (or chitons), and cephalopods
(such as nautilus and spirula). These shells are very often the most commonly
encountered, both in the wild, and for sale as decorative objects.
Marine species of gastropods and bivalves are more numerous than land and
freshwater species, and the shells are often larger and more robust. The shells of
marine species also often have more sculpture and more color, although this is by
no means always the case.

15.

In the tropical and sub-tropical areas of the planet, there are far more species of
colorful, large, shallow water shelled marine mollusks than there are in the
temperate zones and the regions closer to the poles.
Although there are a number of species of shelled mollusks that are quite large,
there are vast numbers of extremely small species too, see micromollusks.
Not all mollusks are marine. There are numerous land and freshwater mollusks, see
for example snail and freshwater bivalves. In addition, not all mollusks have an
external shell: some mollusks such as some cephalopods (squid and octopuses) have
an internal shell, and many mollusks have no shell, see for example slug and
nudibranch.