The Invertebrate Zoology Collection contains over 23,000 catalogued lots of marine, freshwater, and terrestrial invertebrates and an estimated 10,000 additional lots of uncatalogued specimens. Particular strengths of the collection include diverse Antarctic marine invertebrates, freshwater mussels, and Aplacophora.

The Bailey-Matthews National Shell Museum collection currently encompasses about 133,000 catalogued lots, the collection consists of a vast majority of dry specimens and a small component of fluid-preserved material. The collection is worldwide in scope, but has a strong emphasis on material from Florida and the eastern seaboard of the US, and, in particular, Southwest Florida and the adjacent Gulf Mexico waters.

The mollusk collection has been part of Carnegie Museum since it began in 1896, starting with the collection of George Clapp (honorary curator of malacology at Carnegie Museum). The current collection contains more than 150,000 lots (1.3 million specimens) from marine, freshwater, and land environments, from the mid-1800s to present, representing 6 of the 7 classes of mollusks, and with holdings from every continent and ocean, mostly from North America (75% of collection) and Europe (13% of collection). Taxonomic strengths are freshwater mussels (Unionoida) of North and South America (including the important collection of Arnold Ortmann, who literally wrote the book on North American Unionoida); terrestrial gastropods of North America, especially minute species (more specimens of the tiny Punctum minutissimum than all other museums combined) with the world’s largest collection of land snails from northern Appalachia; and the world’s largest collection of freshwater pill clams (Sphaeriidae, primarily from Victor Sterki and including more than 1000 type lots, still being cataloged). Many of our historical specimens of freshwater and terrestrial mollusks have some of the most detailed locality information compared to other museums. The specimen collection currently ranks 11th largest in USA. The current section head’s (curator of collections) expertise is land snails of North America.

La Colección de moluscos del Museo de Malacología de la universidad de Panamá (MUMAUP) es una unidad académica y de investigación que forma parte de la Facultad de Ciencias Naturales, Exactas y Tecnología de esta universidad y depende directamente del decanato. El museo adquiere, investiga y difunde información taxonomica, geografica y molecular sobre moluscos actuales y fósiles; nacionales y extranjeros; las preparaciones son en seco y liquido.

El presente conjunto de datos contiene las familias de moluscos terrestres y dulceacuícolas de la colección malacológica del Instituto de Investigaciones Botánicas y Zoológicas Prof. Rafael M. Moscoso recolectadas entre los años 1957 y 2000, abarcando 43 años de recolectas hechas por naturalistas reconocidos como Eugenio de Jesús Marcano. El total de registros es de 396,  correspondientes a 1 757 especímenes preservados en seco o húmedo (etanol). Se identificaron 26 familias de gastrópodos y una familia de bivalvos, siendo las más representativas en cuanto a cantidad de registros: Sagdidae (72), Cepolidae (70), Helicinidae (58) y Achatinidae (53). La extensión geográfica abarca 103 localidades dentro de 23 provincias y el Distrito Nacional de la República Dominicana. La creación del perfil de este conjunto de datos en el portal Invert-E-Base de Symbiota fue posible gracias a la colaboración con el Biodiversity Knowledge Integration Center (BioKIC), Arizona State University. El trabajo de movilización y digitalización de los datos se realizó bajo el financiamiento del Programa Biodiversity Information for Development (project BID-CA2020-031-NAC) de la Global Biodiversity Information Facility (GBIF) y la Unión Europea.

The Museum's mollusk collection consists of more than 2 million specimens, making it one of the largest in the United States. The 220,000 cataloged lots represent more than 18,000 species. Worldwide in scope and covering all seven living classes of mollusks, our holdings include marine gastropods (45%), land and freshwater gastropods (30%), marine bivalves (15%), freshwater bivalves (5%) and other (5%). The Museum's mollusk collection is primarily dry shells, with some alcohol preserved cephalopod specimens. Most specimens are recent; however there is some Cenozoic fossil material. Our type collection contains more than 1,200 lots.

Established in 1938, the Division of Invertebrates is in charge of all invertebrate groups except insects and other non-marine arthropods. The first curator of this Division was Fritz Haas, formerly of the Senckenberg Museum in Frankfurt, Germany. Haas (1938 - 1969) and his successor Alan Solem (1957 - 1990) built massive mollusk collections, particularly strong in unionid bivalves and terrestrial snails, reflecting their respective research interests. Current curators Rüdiger Bieler (1990 -) and Janet Voight (1990 -) focus their research and collection-building on marine molluscan groups. The varied curatorial research interests, the collecting efforts of past and present collections managers (e.g., John Slapcinsky and Jochen Gerber), and acquisitions of private collections and "orphan collections" have contributed to this large collection.

Dry and fluid preserved marine invertebrate specimens. Primarily from Florida, Gulf of Mexico, and Caribbean, collected primarily from 1960s-present.

The Houston Museum of Natural Science Malacology collection has grown over the past few years and is now the largest of the Museum’s Collections. HMNS is the home of the extensive and irreplaceable collection known as the Northwest Gulf of Mexico Survey of Marine Mollusks and the world-renowned Guido Poppé Collection of Philippine Shells. Other notable historic collections include the Thomas E. Pulley collection, the Helmer Odé collection, and the Connie Boone collection. This, as well as many other holdings of specimens, are being used by various researchers to further our understanding of the importance of these animals and their relevance to the environment.

Current holdings for the HMNS Malacology collection are approximately 1.5 million dry specimens that include holotype, paratype, and hypotype specimens. With a focus on marine specimens of the United States and the Indo Pacific, the collection has been able to grow in a direction that allows both display of specimens and to be a resource for researchers, educators, and students.

This database contains records related to about 500,000 lots maintained in the malacology department. at the Academy of Natural Sciences of Philadephia. These records are derived from

1. detailed computer records for material entering the collection since 1976, and
2. records digitized from the handwritten catalogues, which were started in 1889.
3. an inventory started in 2011 that has recorded the current placement in the collection of more than 412,000 lots, and
4. images of specimens and labels, particularly for type lots.

Public records of accessioned specimens and observations curated by the National Museum of Natural History, Smithsonian Institution. These data are from the Departments of Entomology and Invertebrate Zoology.

Marine and terrestrial mollusks with an emphasis on marine gastropods from the Eastern Pacific, though worldwide in scope.

Global marine invertebrates, largely benthic, primarily fluid preserved. Composite collections from numerous sources (sampling expeditions, individual collectors, academic institution collections, agency collections, etc.).

Founded in 1932, PRI has outstanding programs in research, collections, publications, and public education. PRI is a national leader in development of informal (i.e., outside the classroom) Earth science education resources for educators and the general public, and also cares for a collection of 7 million specimens (one of the 10 largest in the U.S). The Museum of the Earth and Cayuga Nature Center are the local public educational venues of the Paleontological Research Institution (PRI), and are located in Ithaca, NY. Both are dedicated to offering accessible Earth and environmental science enrichment opportunities for visitors of all ages, and also work closely with area school groups to help instill an appreciation of the natural world at a young age.

The SDNHM Marine Invertebrates collection holds approximately 5 million specimens, emphasizing mollusks and crustaceans of southern California, Baja California, and the eastern Pacific. Also represented are worldwide collections in selected mollusk and crustacean groups. The collection holds 135 primary and 856 paratypes.

La colección de Crustáceos se encuentra depositada en el Museo de Historia Natural de la Escuela de Biología, en la Universidad de San Carlos de Guatemala.

La colección de Equinodermos se encuentra depositada en el Museo de Historia Natural de la Escuela de Biología, en la Universidad de San Carlos de Guatemala. Cuenta con especímenes colectados en el Océano Atlántico.

La colección cuenta especímenes de moluscos marinos, dulceacuícolas y terrestres. Moluscos Marinos: contiene 8,658 especímenes ingresados (2,063 ejemplares del Pacífico y 6,375 ejemplares del Atlántico), colectados entre 1994-2004. Estos moluscos pertenecen a las clases Gastropoda, Bivalvia y Scaphopoda, siendo Lucinidae, Ungulinidae, Cardiidae y Veneridae las familias principales. Los sitios más representados son los departamentos de Retalhuleu, San Marcos, Santa Rosa e Izabal. / Moluscos Terrestres: contiene 967 ejemplares de caracoles colectados entre 2011 y 2012. Estos pertenecen a la clase Gastropoda, siendo Helicinidae, Neocyclotidae y Subulinidae las familias más representadas. Los sitios más representados son los departamentos de Petén, Huehuetenango y Alta Verapaz. / Moluscos Dulceacuícolas: la mayor parte de los ejemplares no se han determinado y están pendientes de ingreso.

The Reference Collection at Del Valle University contains a wide range of specimens from Guatemala; making it one of the largest collections in Central America. It was established in 1976 and has been developed by various scientists, students, and collaborators since then. The Collection has been broadly used for research purposes and academic uses helping not only local but also international researchers. Physical address: 18 Avenida 11-95 zona 15, Vista Hermosa III. Guatemala, Guatemala.

The VMIC consists of ca 75,000 lots, of which 41,900 are cataloged and identified to species, and the remaining lots to order or family. The VMIC is worldwide in scope covering 37 taxonomic groups, belonging to 17 phyla of marine invertebrates. The most representative phyla are Mollusca (55%), arthropods mainly crustaceans (25%), Cnidarians (8 %), Echinoderms (8%), annelids (3%) and porifera (1%). The collection covers the tropical western and eastern Atlantic, mainly from cruises conducted across the Caribbean, central and south America and the Gulf of Guinea. Additionally, there are extensive collections of marine invertebrates from the Florida keys, Gulf of Mexico and Bahamas.

The mollusk collection at the University of Tennessee at Knoxville (UTK) began in 1973 with the arrival of Dr. Paul W. Parmalee.  Initially stored in a closet in the football stadium, the collection was moved to the McClung Museum of Natural History and Culture (MMNHC) in the late 1970's and was used for The Freshwater Mussels of Tennessee by Parmalee and Bogan (1998). The collection consists primarily of freshwater mussels, aquatic gastropods, and terrestrial gastropods, and it is growing rapidly as material is brought in by graduate students, numerous state and federal agency biologists, and collaborating researchers within UTK and at other academic institutions. The MMNHC collection is one of the largest on-campus collections in the U.S., and it is the only collection in the world having aquatic mollusk specimens from all 95 Tennessee counties. All 141 species of freshwater mussels historically occurring in Tennessee are represented in the MMNHC collection, and we have material dating back to the mid 1800's. Our collection presently includes 265 of the 303 species from the U.S. and Canada, and the collection includes 70 endangered species, 9 threatened species, 16 species considered extinct, 6 species proposed endangered, 9 species proposed threatened, and 7 species under review for federal status. A significant amount of uncatalogued material, including both modern and archaeological shells, is in storage and is being processes.