The Festivus 2026
The Tables of Contents of the issues of The Festivus published in 2026 are provided below.
If you would like a copy or copies of The Festivus, see the pricing directly below. Note: hard copies may not be available if stock has been depleted. Hard copies will include shipping costs. Your copy or copies will be sent upon receipt of payment.
~ Single Hard Copy: $15 (plus shipping)
If you would like a copy or copies of The Festivus, see the pricing directly below. Note: hard copies may not be available if stock has been depleted. Hard copies will include shipping costs. Your copy or copies will be sent upon receipt of payment.
~ Single Hard Copy: $15 (plus shipping)
Volume 58 (1). February 1, 2026
Peer Review Articles
A New Genus and Species of Cypraeoidea from the Bartonian (Middle Eocene) of Allué, Sabiñánigo (Huesca Province, Spain), and Taxonomic and Nomenclatural Remarks on the Genus Oxycypraea Schilder, 1927
Jean-Michel Pacaud, Guillermo Gómez-García and Alain Celzard
DOI:10.54173/F5812
Full Text Here
A New Species of Asiaharpa (Neogastropoda: Harpidae) from the Miocene of West Java, Indonesia, with a Reappraisal of Harpid Phylogeny
Cristian R. Altaba and Matteo Dovesi
DOI:10.54173/F58115
Full Text Here
A New Species of Bolma Risso, 1826 (Gastropoda: Vetigastropoda Turbinidae) from off Coral Bay, Western Australia
Yao Zheng and Stephen J. Maxwell
DOI:10.54173/F58126
Full Text Here
Two New Fossil Gastropod Taxa from the Southeastern United States
Edward J. Petuch and David P. Berschauer
DOI: 10.54173/F58133
Full Text Here
New Gastropods from the Tortuga Terrace, Dry Tortugas, Florida
Edward J. Petuch and David P. Berschauer
DOI: 10.54173/F58138
Full Text Here
A New Species of Crenavolva (Gastropoda, Ovulidae) from Mozambique
Alain Celzard
DOI: 10.54173/F58149
Full Text Here
Predatory Shell-drilling by the Land Snail Haplotrema concavum (Say, 1821) (Haplotrematidae)
Aydin Örstan
DOI: 10.54173/F58158
Full Text Here
A Newly Discovered Tudivasum Rosenberg & Petit, 1987 (Mollusca: Vasidae) from Western Australia
Yao Zheng and Stephen J. Maxwell
DOI: 10.54173/F58164
Full Text Here
Club News, 70.
Articles of General Interest
~ President’s Message, by David B. Waller, 71.
~ Genetic Memory and Trait Dominance Switching as a Possible Explanation for Large Populations of Sinistral Gastropods, David B. Waller, 72.
~ The Upper Size Range of Pseudopusula californiana (Gray, 1827), by Roger A. Evans, 80.
A New Genus and Species of Cypraeoidea from the Bartonian (Middle Eocene) of Allué, Sabiñánigo (Huesca Province, Spain), and Taxonomic and Nomenclatural Remarks on the Genus Oxycypraea Schilder, 1927
Jean-Michel Pacaud, Guillermo Gómez-García and Alain Celzard
DOI:10.54173/F5812
Full Text Here
A New Species of Asiaharpa (Neogastropoda: Harpidae) from the Miocene of West Java, Indonesia, with a Reappraisal of Harpid Phylogeny
Cristian R. Altaba and Matteo Dovesi
DOI:10.54173/F58115
Full Text Here
A New Species of Bolma Risso, 1826 (Gastropoda: Vetigastropoda Turbinidae) from off Coral Bay, Western Australia
Yao Zheng and Stephen J. Maxwell
DOI:10.54173/F58126
Full Text Here
Two New Fossil Gastropod Taxa from the Southeastern United States
Edward J. Petuch and David P. Berschauer
DOI: 10.54173/F58133
Full Text Here
New Gastropods from the Tortuga Terrace, Dry Tortugas, Florida
Edward J. Petuch and David P. Berschauer
DOI: 10.54173/F58138
Full Text Here
A New Species of Crenavolva (Gastropoda, Ovulidae) from Mozambique
Alain Celzard
DOI: 10.54173/F58149
Full Text Here
Predatory Shell-drilling by the Land Snail Haplotrema concavum (Say, 1821) (Haplotrematidae)
Aydin Örstan
DOI: 10.54173/F58158
Full Text Here
A Newly Discovered Tudivasum Rosenberg & Petit, 1987 (Mollusca: Vasidae) from Western Australia
Yao Zheng and Stephen J. Maxwell
DOI: 10.54173/F58164
Full Text Here
Club News, 70.
Articles of General Interest
~ President’s Message, by David B. Waller, 71.
~ Genetic Memory and Trait Dominance Switching as a Possible Explanation for Large Populations of Sinistral Gastropods, David B. Waller, 72.
~ The Upper Size Range of Pseudopusula californiana (Gray, 1827), by Roger A. Evans, 80.
Volume 58 (2). May 1, 2026
Peer Review Articles
Competitive Exclusion by the Invasive Cowrie Naria turdus
David P. Berschauer and Leo G. Ros
DOI:10.54173/F58288
Full Text Here
On the Eocene Pediculariinae (Gastropoda, Ovulidae) Olianatrivia riberai Dolin L.,
Biosca-Munts & Parcerisa, 2013 and Perispatula costagranosa Checchi, Zamberlan &
Alberti, 2013
Alain Celzard, Jean-Michel Pacaud, Andrea Checchi and Fiorenzo Zamberlan
DOI:10.54173/F58292
Full Text Here
A Newly Identified Palmadusta saulae Subspecies from Palawan Island
David B. Waller and David P. Berschauer
DOI:10.54173/F582106
Full Text Here
A New Pionoconus from off Strickland Bay, Kimberly Region, Western Australia
David P. Berschauer and David B. Waller
DOI:10.54173/F582112
Full Text Here
First Record of Turridrupa jubata (Reeve, 1843) (Gastropoda: Turridae) a Carnivorous Gastropod from the West Coast of India
Abhijna Ghosh and Amit Mukhopadhyay
DOI:10.54173/F582117
Full Text Here
A New Species of Scaphella (Gastropoda: Volutidae) from the Yucatan Peninsula
of Mexico
Edward J. Petuch, David P. Berschauer, and Douglas N. Shelton
DOI:10.54173/F582121
Full Text Here
An Endemic Morum Röding, 1798 (Harpidae: Moruminae) from Central Western Atlantic
Yao Zheng, Aart M. Dekkers, and Stephen J. Maxwell
DOI:10.54173/F582127
Full Text Here
Futile Searches, Obvious Findings: a 2D Digital Exploration of Morphological
Indistinctiveness in the (Sub)genus Viduoliva Petuch & Sargent, 1986 (Olividae: Olivinae)
Cesare Brizio
DOI:10.54173/F582137
Full Text Here
Club News, 159.
Articles of General Interest
~ Possible Explanation for Dark Dorsal Blotches on Cypreaidae Species, by David B. Waller, 160.
~ Cyphomas of the Carolinian Province, by David P. Berschauer, 168.
~ The Upper Size Range of Calliostoma canaliculatum (Lightfoot, 1786), by Roger A. Evans, 169.
~ Pelican’s Feet Shells of the Acadian Province, by David P. Berschauer, 171.
Competitive Exclusion by the Invasive Cowrie Naria turdus
David P. Berschauer and Leo G. Ros
DOI:10.54173/F58288
Full Text Here
On the Eocene Pediculariinae (Gastropoda, Ovulidae) Olianatrivia riberai Dolin L.,
Biosca-Munts & Parcerisa, 2013 and Perispatula costagranosa Checchi, Zamberlan &
Alberti, 2013
Alain Celzard, Jean-Michel Pacaud, Andrea Checchi and Fiorenzo Zamberlan
DOI:10.54173/F58292
Full Text Here
A Newly Identified Palmadusta saulae Subspecies from Palawan Island
David B. Waller and David P. Berschauer
DOI:10.54173/F582106
Full Text Here
A New Pionoconus from off Strickland Bay, Kimberly Region, Western Australia
David P. Berschauer and David B. Waller
DOI:10.54173/F582112
Full Text Here
First Record of Turridrupa jubata (Reeve, 1843) (Gastropoda: Turridae) a Carnivorous Gastropod from the West Coast of India
Abhijna Ghosh and Amit Mukhopadhyay
DOI:10.54173/F582117
Full Text Here
A New Species of Scaphella (Gastropoda: Volutidae) from the Yucatan Peninsula
of Mexico
Edward J. Petuch, David P. Berschauer, and Douglas N. Shelton
DOI:10.54173/F582121
Full Text Here
An Endemic Morum Röding, 1798 (Harpidae: Moruminae) from Central Western Atlantic
Yao Zheng, Aart M. Dekkers, and Stephen J. Maxwell
DOI:10.54173/F582127
Full Text Here
Futile Searches, Obvious Findings: a 2D Digital Exploration of Morphological
Indistinctiveness in the (Sub)genus Viduoliva Petuch & Sargent, 1986 (Olividae: Olivinae)
Cesare Brizio
DOI:10.54173/F582137
Full Text Here
Club News, 159.
Articles of General Interest
~ Possible Explanation for Dark Dorsal Blotches on Cypreaidae Species, by David B. Waller, 160.
~ Cyphomas of the Carolinian Province, by David P. Berschauer, 168.
~ The Upper Size Range of Calliostoma canaliculatum (Lightfoot, 1786), by Roger A. Evans, 169.
~ Pelican’s Feet Shells of the Acadian Province, by David P. Berschauer, 171.
Volume 58 (3). August 1, 2026
(To be uploaded at a later date)
Volume 58 (4). November 1, 2026
(To be uploaded at a later date)