Pteria penguin


Although, Pteria penguin is a type of marine bivalve mollusk. It belongs to the family Pteriidae. Penguin’s wing oyster is another very interesting and famous name of Pteria penguin.

Pteria penguin is utilized for the creation of refined pearls. Furthermore,  the generic name originates from Greek πτερον (pteron) which means wing. The Penguin Wing Oyster is the biggest individual of its type.

The Wing Oyster is in actuality utilized for the generation of mabé pearls for the jewelry business. In this procedure, hemispherical bits of plastic or shell are stuck to the internal shell of the living wing clam.


Accordingly, the mantle tissue of the wing shellfish coats the hemispherical piece with nacre and the subsequent pearl parts are then cut from the shell.


NamePinctada penguin Roding
Scientific NamePteria penguin
SynonymsAustropteria perscitula Iredale,
Avicula peasei Dunker,
Pinctada penguin Röding,
Avicula macroptera Lamarck,
Semisagitta Lamarck,
Avicula radiata Pease,
Magnavicula bennetti Iredale,
Pteria macroptera,
Pteria semisagitta

Vernacular Names

  • English: Oyster
  • French: Huître perlière ailée
  • Spanish: Ostra perlera viuda
  • Lango: Roa gaula
  • Palauan: Rrudel


History about the Pteria penguin is given below:


The Philippines and Indonesia is the origin of Pteria penguin.

Fossil Records of Pteria penguin

Moreover, mollusks initially developed 530 million years prior. Fossil pearls have also been found in a few extinct types.

The absolute most uncommon natural pearls nowadays are pink conch pearls from the Queen Conch, orange Melo pearls from Baler Shells and blue-green pearls from abalone shells. Hence, marine snails deliver these shells.

Besides that, people have long gathered these pearls and some of the other marine mollusks for their natural pearls and mother-of-pearl shells. While today numerous types of mollusks are brought up in pearl culturing.


Similarly, known as “perliculture,” delivering refined pearls in an extensive variety of sizes, shapes, and hues.

Furthermore, fossil pearls are quite often connected with marine bivalves. Though old freshwater mollusks likewise created pearls. Amid a pearl’s fossilization, the aragonite (it is a mineral that makes up the greater part of the pearl) is supplanted by calcite.

However, in cross-segment, the fossils show the identical concentric layering as in present-day pearls. Infrequently the first aragonite is protected with its nacreous shine.

Distinctive Features of Wing Oyster

Wild oysters of this type rarely contain pearls in it. When oysters contain pearls in it, they appear irregular in size and shape.

Furthermore, these oysters have pinkish tints on them that are typical of the nacre coating all the shells. The most extreme breadth of the pearls is around 0.5 inches.


Pteria penguin is local toward the western and focal Indo-Pacific area. Therefore, its range reaches out from the East African coast covering the Red Sea to India, Japan, southern China, the Philippines, northern Australia, and Indonesia.


On the other hand, Pteria penguin has different attributes which include:

  • Different colors
  • Specialized organs
  • Wing-like shape
  • Solid shell
  • Egg-shaped
  • An outer part of a shell has brown too black color.
  • The inner part of the shell is silvery.
  • The inner part is dazzlingly nacreous with glossy black margins.

Ecology of Pteria penguin

 Ecological extents include:

  • Oxygen (ml/l): 4.488 – 4.488
  • Saltiness (PPS): 35.356 – 35.356
  • Depth (m): 42.4 – 68.5827
  • Phosphate (umol/l): 0.168 – 0.168
  • Temperature (°C): 24.953 – 24.953
  • Nitrate (umol/L): 1.246 – 1.246
  • Silicate (umol/l): 0.873 – 0.873

Food Habits

Griffiths (1980) expressed that particulate organic matter is the principal food source for some, bivalves. General nourishing of the bivalves include maintenance of the particulate organic matter from the suspension on the gills when filtering. Which is then move to mouth and goes down the throat.

Saliva produced by a few bivalves helps trap their food particles. Their feeding is thought to be an automatic procedure where the maintenance of food particles is controlled by the rate of filtering and the amount of food accessibility in water


Although, the Wild oyster is discovered attached by its byssal strings or threads to various distinctive substrates. However, commonly to hydroids, at less than around 25m deep in water. Moreover, it is local toward the western and focal Indo-Pacific area.

Life History

Moreover, since the shell valves of this species are so thin. It was beyond the capability of nineteenth-century shellfish culturists to utilize it for pearl generation.

Besides this, with new strategies, seeding has turned out to be less tough. Pteria penguin has joined Pteria sterna. Sterna is another individual from the family Pteria.

On the other hand, similar to a main and most important producer of cultured pearls. Moreover, the greater part of the pearls created by Pteria penguin is called “mabé pearls”.

life history

Although, these pearls are also called half pearls or bubble pearls. They develop between the mantle and the shell valve.  On the other hand, these peals have one leveled side.

The generation of round pearls is conceivable. However, it requires further developed strategies in seeding. Spats which are occurring naturally can be gathered on spat collectors for developing on into mature clams. While there are a few hatcheries creating spat on a business scale.

Besides that, these clams undergo refining process on the Ryukyu Islands. They are along the southern bank of China located on Phuket Island in Thailand and on Vava’u located in Tonga.

Life Span

Moreover, the lifespan of Pteria penguin ranges from 18 to 22 days



  • Genetic variability
  • Environmental uncertainty

The behavior of Pinctada maxima

Although, freshly fertilized eggs had a mean breadth of 45 ± 1.3 µm. But, within 28 minutes of fertilization, the polar bodies became so obvious. As a result, they indicate meiotic division. Moreover, Pteria penguin has particular timings of their development stages.


On the other hand, the first cleavage combines with the second cleavage and they make four blastomeres. Furthermore, these blastomeres divide unequally and they make various cells. Although, these cells are of different shapes and sizes. These cells also include macromeres and micromeres.

Besides this, macromeres also divide into unequal divisions. While, in the end, it delivers a daughter cell. However, then that daughter cell divided bilaterally to make the two biggest cells present in the 28-cell embryo.

Communication & Reception

Furthermore, a histological examination of gonads, demonstrated that spawning activity happened largely through the austral mid-spring to pre-fall (November to March). Usually, at this time, the mean month to month water temperature reached between 27.5°C and 29°C.

Known Hazards

Generally, you can eat Pteria penguins but they are not digestible.

Similar Species

Species that are similar to the wild wing oysters are

Fun Facts

Apart from all the hazards, there are also some fun facts about the Pteria penguin:

final facts

Although, these fun facts are quite interesting yet there are some dangers as well.


Aymen Nizam

Aymen Nizam

I am IT (Graduate) from Bahria University Islamabad currently writing blogs on animals and plants, I am a content writer by profession and passionate about writing all information about living things. TapeDaily has provided me a chance to share my expertise with you.

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