Pinctada Species with Hinged Teeth

Pinctada shimizuensis (S. K. and R. Wada, 1953)

Common Synonyms	None
Primary Source	Japan: The Bay of Shimiza in Shizuoka Perfecture
Other geographical locations	Japan and the Ryukyu Islands
P. shimizuensis in pearls	Can be cross-bred with P. martensii

Distinguishing Characteristics

Originally considered to be a subspecies of P. martensii, P. shimizuensis is closely linked with P. martensii. It is distinguished by its square-shaped shell, which can reach lengths up to 9 cm.

Habitat and Ecology

The species derives its name from the bay where it was first discovered, the Bay of Shimiza in Shizuoka Perfecture.

P. shmizuensis in Pearls

Because of its anatomical resemblance to P. martensii, it can be crossbred with the Japanese Akoya.

Pinctada nigra (Gould, 1850)

Common Synonyms	P. atropurpurea (Dunker, 1852) P. flexuosa (Reeve, 1857) P. sheepmakeri (Dunker, 1872) P. reentsii (Dunker, 1872) P. tristis (Dunker, 1872) P. natalensis (Jameson, 1901)
Primary Source	Outside the Tropic of Capricorn from East Africa to South Africa
Other geographical locations	Indo-Pacific Zone
P. nigra in pearls	Inferior and historically used in medicine and decoration

P. nigra pearls are rare and generally inferior. They were likely used historically used for material medica and inexpensive decoration. They are most often found in South Africa.

Related Articles:

Last edited by CortezPearls; 03-15-2021, 11:12 PM.

Tags: None

Posting comments is disabled.

A review: The History of Pearls in the Gulf of California, Mexico PART 2

by CortezPearls

The arrival of the Iberian Conquerors

The Native Nations had no real interest in establishing a commercial venture in pearl fishing and we understand little to nothing of the way they fished for pearls, since most of the information was either lost or destroyed during the conquest of Mexico. The rich plunder of the Conquistadores was sent to Spain and later dispersed all over Europe. The most significant information we have on the subject comes from the period of colonization of northwestern...
- Channel: Pearl Education
04-05-2021, 03:26 PM
A review: The History of Pearls in the Gulf of California, Mexico - PART 1

by CortezPearls

A review: The History of Pearls in the Gulf of California, Mexico
By Douglas McLaurin-Moreno

Since unrecorded time, man has obtained many bounties from the world’s oceans: food, shells, corals, sponges, seaweeds, and the most desirable of all of these were the beautiful mother-pf-pearl shells and their valuable treasure, Pearls.

Mexico has four species of pearl oysters inhabiting its coasts, two -the larger sized- on the Pacific side: the Panamic Black Lip...
- Channel: Pearl Education
03-18-2021, 03:04 PM
About Pearl-Guide.com

by Kevin Canning

More than 10,000 Members Strong
Founded in 2003 with the addition of a community forum in 2004, Pearl-Guide.com is a friendly group of pearl dealers, farmers, traders, wholesalers, hobbyists, authors, and consumers. With members from around the world engaged in daily conversation, Pearl-Guide.com is the largest community of pearl enthusiasts in the world.

World's Only Open Pearl Discussion Forum Pearl-Guide.com exists for the benefit of consumers and the trade. With the world...
- Channel: Pearl Education
07-24-2014, 07:33 PM
The French Blue

by WayneCMS

By Richard Wise I was fortunate enough to get an early Kindle edition of Richard Wise's newest masterpiece The French Blue. I also own a copy of Wise's Secrets of the Gem Trade, and it is one of the very few gem books that I've read cover to cover, not just skipping ahead to the sections about pearls. The French Blue is a completely different kind of work. It is a novel that begs to be read slowly, but once one becomes entranced in the story, it is nearly impossible to put down. Not for the f...
- Channel: Pearl Education
07-21-2014, 10:36 AM
Pearl-Guide.com Forum Policies and Rules of Conduct

by WayneCMS
Pearl-Guide.com, its owners, moderators and administrators reserve the right to:
- Remove or move any content for any reason at our sole discretion
- Modify or edit any content for any reason at our sole discretion
- Suspend or ban any members for any reason at our sole discretion
Use of Pearl-Guide.com will constitute acceptance of the following policies and rules of conduct. These policies and rules of conduct may change periodically. The forum on Pearl-Guide.com is presented "as is" with no w...
- Channel: Pearl Education
07-21-2014, 10:31 AM
Pearl World - The Publication

by WayneCMS

Pearl World Journal is no longer being Published!

Pearl World Journal

Devoted to covering the pearl industry, Pearl World: The International Pearling Journal is the only English language publication of its kind. For 17 years the journal has covered every aspect of the pearling industry, from harvests, production, auctions, wholesaling, and education, to retail designing end consumer marketing.

The Publication The journal is published solely for those inter...
- Channel: Pearl Education
07-21-2014, 10:29 AM

Announcement

Pinctada Species with Hinged Teeth

Pinctada Species with Hinged Teeth

Categories

article_tags

Latest Articles