The Proper Name for the Geoduck: Resurrection of Panopea Generosa Gould, 1850, from the Synonymy of Panopea abrupta (Conrad, 1849) (Bivalvia: Myoida: Hiatellidae)

  title={The Proper Name for the Geoduck: Resurrection of Panopea Generosa Gould, 1850, from the Synonymy of Panopea abrupta (Conrad, 1849) (Bivalvia: Myoida: Hiatellidae)},
  author={Brent Vadopalas and Theodore W. Pietsch and Carolyn S. Friedman},
In 1849, Conrad described, illustrated, and assigned the name Mya abrupta to a new species of fossil bivalve collected from Miocene deposits along the banks of the Columbia River near Astoria, Oregon, during the United States Exploring Expedition of 1838–1842 (Conrad, 1849: 723, pl. 17, fig. 5a, b, USNM 3608; Figs. 1–3). Conrad described it as: “Subelliptical, slightly ventricose, widely gaping posteriorly. Surface marked with concentric undulations. Beaks separated, nearly medial, slightly… 
Panopea abbreviata (Bivalvia: Hiatellidae) in the Southwestern Atlantic Ocean, Taxonomic Revision and Anatomy
The taxonomy and anatomy of the southwestern Atlantic geoduck, Panopea abbreviata Valenciennes, 1839, are revised and the symbiotic relationship with the nemertean Malacobdella arrokeana, attached to host mantle tissues, is mentioned.
Large deep burrowing bivalves in Middle Miocene (Badenian) of Central Paratethys ; examples from Northern Croatia
Bivalve genera Panopea and Pholadomya represent rarely documented large deep burrowers found within Miocene coralline algal facies of Northern Croatia. Two localities are investigated, situated in
Taphonomy of a Panopea Ménard de la Groye, 1807 shell bed from the Pisco Formation (Miocene, Peru)
Invertebrate taphonomy can provide signifi cant information about the post-mortem processes that aff ected the fossil record. In the East Pisco Basin of southern Peru, a Panopea Ménard de la Groye,
Phylogeny and Phylogeography of the Geoduck Panopea (Bivalvia: Hiatellidae)
Geoducks (Panopea spp.) are recognized as one of the longest-lived and largest burrowing bivalves, and analyses using both nuclear genes suggest that the ancestral species of P. globosa may have been broadly distributed through the Pacific coast to South America.
Reclassification of Panopea generosa Var. Taeniata Dall, 1918, a Fossil Morphotype of P. globosa Dall, 1898
Two extant species of geoduck clams occur on the coast of the Baja California Peninsula, and based on morphological and genetic similarity, it has been shown that P. generosa and P. globosa are not phylogenetically close.
Distribution Limits of the Geoduck Clams Panopea generosa and P. globosa on the Pacific Coast Of Mexico
It was found that the distribution of P. globosa not only includes the Gulf of California but extends to at least Bahía Magdalena on the western coast of the peninsula, thus extending its distribution to more temperate areas.
Genetic and Morphological Variation of Northeast Pacific Panopea Clams: Evolutionary Implications
The biological basis of phenotypic (morphometric) and genetic distinction between P. globosa and P. generosa is provided to assist in their management and conservation and to fill a major information gap pertaining to the distinction of both species.
Morphometric Relationships, Age, Growth, and Mortality of the Geoduck Clam, Panopea generosa, Along the Pacific Coast of Baja California, Mexico
It is suggested that the use of a minimum legal size is not an effective management strategy for geoduck clams because the proposed minimum legal length is close to the asymptotic length, and considering that geoducks size is difficult to determine before harvest.
Determining Distribution and Size of Larval Pacific Geoduck Clams (Panopea generosa Gould 1850) in Quartermaster Harbor (Washington, USA) Using a Novel Sampling Approach
These data represent the first reported study of geoduck larval distribution in the field and the first use of the FISH-CS technique for field collections and can be used to answer many relevant management questions locally and more broadly, including quantifying larval export from shellfish farms, placement of restoration sites and marine protected areas, and spread of invasive species.
Growth Variations in the Geoduck Panopea globosa in Different Climatological Regions of Northwestern Mexico
Because the fishing management strategy for this species uses the minimum legal size (MLS), the MLS should vary regionally to promote sustainable use.


Miocene marine mollusks from the Astoria formation in Oregon
The marine Astoria formation of Miocene age occurs in western Oregon. Fossiliferous exposures are limited almost entirely to the sea cliffs along the Pacific Ocean in Tillamook and Lincoln Counties.
Effects of Geoduck Aquaculture on the Environment: A Synthesis of Current Knowledge
This literature review summarizes the state of knowledge of geoduck clams and the potential environmental effects ofGeoduck aquaculture on the Puget Sound environment and added an important detail regarding the mucous glands near the pedal gape.
High performance liquid chromatography coupled with post-column electrochemical oxidation for the detection of PSP toxins.
The electrochemical oxidation system (ECOS), this approach provides a simpler alternative to the traditional PCRS-based HPLC system and the correlation of the HPLC-ECOS system to the mouse bioassay is similar to that obtained using the HP LC-PCRS system for the analysis of PSP toxins.
Shells from the U . S . Exploring Expedition
  • Proceedings of the Boston Society of Natural History
  • 1850