Eugene Victor Coan

Santa Barbara Museum of Natural History · Invertebrate Zoology

As a much needed bibliographic tool, an annotated catalog is given of the symposia and workshops that have been held at malacological and generalist meetings over the past eight decades, together with their resulting publications. Particularly detailed emphasis is given to the meetings of Unitas

The purpose of this application, under Articles 23.9.3 and 81.1 of the Code, is to conserve the current usage of the specific name of the northeast Pacific Ocean marine mussel Mytilus californianus Conrad, 1837, the identity of which has never been questioned. After examining the type specimens of Mytilus zonarius Lamarck, 1819 and Mytilus canalis...

We hereby rename Polymesoda acuta as Polymesoda neubaueri Coan & Valentich- Scott, 2022 (Fig. 1). We restrict the type locality to Costa Rica, Guanacaste Province, Lower Río Tempisque; 10.2583°N, 85.2644°W; intertidal zone, because Prime’s locality could have been on either the Atlantic or Pacific coast of Central America and there is no additional...

Crassicardia rjabininae is reported from the Aleutian islands.

The culmination of an eight year study, this monograph treats all bivalve mollusks living from northern Perú to southern Chile. A total of 256 species are described and illustrated with detailed color photographs and drawings. All habitats in the region are included from the intertidal splash zone to the bathyal depths of the ocean basins. The boo...

Kamenevus, a new extant genus, is described in the mostly extinct Parallelodontidae. This is only the second modern genus to be described in this family.

Gullerina new genus within the Lasaeidae is described and compared to other lasaeid genera.

Description of Propeleda hickmanae (Bivalvia, Nuculanidae) with comparisons with other Propeleda in the region.

Description of Semele iscovichorum with comparisons of other Semele species in the Peru-Chile Province.

This compilation provides a comprehensive catalog of biographical and bibliographical publications for over 29,000 malacologists, conchologists, paleontologists and others with an interest in molluscs, from Aristotle to the present. For each person, the birth/death years and nationality are given (when known), followed by bibliographic citations to...

The French malacologist Gerard Paul Deshayes described 13 new species of marine mollusks collected in 1828 from the northern Red Sea by two French explorers, Leon de Laborde and Louis Maurice Adolphe Linant de Bellefonds. His work was published in an expedition volume authored by Laborde. We determine the correct publication date and authorship att...

This paper provides a biography, bibliography and taxonomic catalog for John Clarkson Jay (1808-1891), emphasizing his malacological research based upon his sizable collection and his contributions to the growth and expansion of the New York Lyceum of Natural History, the predecessor to the American Museum of Natural History. Jay described one new...

A biography of the late James H. McLean, former Curator of Malacology at the Natural History Museum of Los Angeles County is provided. It is complemented with a full bibliography and list of 344 taxa named by him and co-authors (with type information and current status), as well as 40 patronyms.

First published portrait of William Wood

This paper provides a biography of Rudolph Amandus Philippi (1808–1904), emphasizing his malacological research and his contributions to the natural history of Chile. Philippi is one of the most important, yet overlooked malacologists of the 19th century. He authored significant publications on the Recent and fossil molluscs of Sicily; the Oligocen...

Rudolph Amandus Philippi (known in Chile as Rodulfo Amando Philippi), was one of the longest-lived and most prolific malacologists of the 19th century, as his scientific work began in Germany in the 1830s and continued unabated until his death in Chile in 1904. Philippi contributed significantly to malacology: he described over 2,500 new taxa of Re...

. The purpose of this application, under Articles 29 and 55.3 of the Code, is to remove the homonymy between the family-group names xylophagidae Purchon, 1941 (Mollusca: Bivalvia) and xylophagidae Fallen, 1810 (Insecta: Diptera), which are homonyms due to the similarity of the names of their respective type genera Xylophaga Turton, 1822 and Xylopha...

The Perú-Chile Province, an area that extends from Punta Aguja, Piura, Perú (5.8°S), and continues south to the southern tip of Isla Chiloé, Los Lagos, Chile (43.4°S), has never had a comprehensive survey of marine bivalve diversity. While preparing a new monograph to be titled Bivalve Seashells of Western South America we have encountered a large...

The Zeitschrift fü r Malakozoologie, the first modern German malacological serial, appeared in 10 volumes and 120 issues from 1844 through 1853, and contained the descriptions of numerous new species of mollusks from around the world. Due to the 1848 German Revolution, and other publication delays, the dating of a number of issues has been problema...

Bivalve Seashells of Western South America is the third in a series of monographs on the eastern Pacific Ocean marine bivalve fauna. The scope of this monograph is the fauna from the Perú-Chile Province, an area that extends from Punta Aguja, Piura, Perú (5.8°S), and continues south to the southern tip of Isla Chiloé, Los Lagos, Chile (43.4°S), con...

The 46 names of species of marine bivalves and gastropods made available by Grabau & King in 1928 are discussed. Probable or possible type material for all but 13 of these taxa has been located in the Institute of Oceanology, Chinese Academy of Sciences. Of these taxa, nine are regarded as valid, the rest being junior synonyms. The valid taxa are:...

The marine bivalve mollusks from Arctic Alaska, U.S.A., to northern Peru have been the subject of our two previously published books. We have begun research on a third eastern Pacific Ocean bivalve monograph, to be entitled Bivalve Seashells ofWestern South America. The study region originates at Punta Aguja, Piura, Peru (5.8°S), and continues sout...

The malacological works of Sylvanus Hanley (and his relative Charles Thorpe) are discussed and their dates in some cases clarified. The taxa that first appear in these works are listed, their type specimens noted when known, and the current status of the available taxa discussed. Of the 375 species-group names that first appear in these works, 367...

The tropical west American molluscan fauna of the Panamic Province received delayed attention from the European scientific community compared to many other parts of the world. While a scattering of specimens from individual collectors were described long ago by such authors as Linnaeus and Lamarck, it was only after the 1801-1803 expedition of Humb...

The culmination of an eight year study, it treats all bivalve mollusks living from northern Baja California, México to northern Perú. A total of 890 species are described and illustrated with detailed color photographs and drawings. All habitats in the region are included from the intertidal splash zone to the abyssal depths of the ocean basins. Th...

William Wood (1774-1857), trained as a physician, soon turned his attention to natural history book publication and sales. Working in London, his chief malacological publications were the General conchology (1814-1815; reprinted in 1835), two editions of the Index testaceologicus (1818, 1823-1825; the latter reprinted in 1828), and a Supplement (18...

In preparing a manual on the marine bivalves of the Panamic Province, we have found three species of the Tellinidae that lack names. The purpose of this paper is to describe a new species of Tellina (Hertellina), a new species of Tellina (Merisca), and a new species of Tellina (Acorylus). The subgenus Acorylus is reported for the first time from th...

While preparing a manual on the marine bivalves of the Panamic Province, we have found three species of the Periplomatidae that lack names. In this paper, we describe two new species from Mexico, Periploma skoglundae and P. hendrickxi, and one new species from El Salvador, P. kaiserae.

Some 1,048 names at the rank of subtribe, tribe, subfamily, family and superfamily have been proposed for Recent and fossil bivalves. All names are listed in a nomenclator giving full bibliographical reference, date of publication, type genus, and their nomenclatural availability and validity under the International Code of Zoological Nomenclature....

This paper documents the publications of the American Malacological Society, and its predecessor, the American Malacological Union, from 1931 through 2007. Information on the dates of publication is included, based primarily on library receipt records. Several publications were erroneously dated as to year, which has resulted in new taxa described...

While preparing a review of the bivalve mollusk fauna of the Panamic Province, we encountered a conspicuous, colorful species of the genus Chama Linnaeus, 1758, that could not be identified with any named species. After examining type specimens at The Natural History Museum, London (BMNH), the United States National Museum of Natural History (USNM)...

This paper reviews the new taxa made available by Gray in the Griffith & Pidgeon (1833− 1834) English translation of Cuvier's famous Le règne animal (1830), as well as the taxa attributed, correctly or incorrectly, to Gray in this work. We discuss various complications concerning the dating and authorship of these taxa, and some new information is...

Wolfgang Karl Weyrauch (1907−1970) studied land and freshwater gastropods of South America, mainly taxa belonging to the families Camaenidae, Charopidae, Clausiliidae, Endodontidae, Helicinidae, "Hydrobiidae", Orthalicidae, Pupillidae, Scolodontidae, Subulinidae, and Urocoptidae. Here we list the 198 molluscan names introduced by Weyrauch and all o...

In the process of writing our forthcoming book on the bivalve mollusks of tropical western America, we have encountered a number of nomenclatural problems. We herewith untangle three of these issues and illustrate the species in question. I. Pleurolucina undata (Carpenter, 1865) (Figure 1) This is a case of an improperly renamed junior homonym. Her...

This paper documents the publications of the American Malacological Society, and its predecessor, the American Malacological Union, from 1931 through 2007. Information on the dates of publication is included, based primarily on library receipt records. Several publications were erroneously dated as to year, which has resulted in new taxa described...

The following keys attempt to achieve a balance between demonstrating adaptive, phylogenetically related groups and providing somewhat artificial keys for easy identification. The keys will be most useful for fresh, mature, unworn specimens and are designed for intertidal species occurring between the Oregon coast and Point Conception. The keys con...

There is a sharp distinction between replacing a preoccupied name and describing a new species that is a synonym of such a name. We cite some examples of where this distinction has been misinterpreted with regard to type material of Hertlein and Strong and Keen taxa.

The marine Bivalvia are the second largest class of marine mollusks. This group includes clams, cockles, scallops, oysters, mussels, piddocks, and shipworms. This is a guide to their study, collection and preservation.

A small, colorful and distinctive tellinid bivalve of the Panamic Province, Tellina (Eurytellina) inaequistriata Donovan, 1802 (pI. 123), rests on a most unstable nomenclatural foundation.

A global market in seafood disperses many live organisms to distant locations. These organisms can be released into environments of the new locations, where they can establish reproductive populations. The risks of such introductions remain poorly resolved. We therefore surveyed bivalves (oysters, mussels, and clams) that are commercially available...

A new species of Semelina, S. campbellorum, is described from the Panamic province, differing from S. subquadrata (Carpenter, 1857) in having a longer, more tapered posterior end, orthogyrate rather than opisthogyrate beaks, more lamellar commarginal ribs with fine commarginal threads between the larger lamellae, and a longer, more confluent pallia...

There are at least ten minute species of Condylocardiidae in the tropical eastern Pacific: eight species assigned to Condylocardia and two to Carditella. Eight of these taxa are described here for the first time: Condylocardia sparsa new species, Condylocardia fernandina new species, Condylocardia koolsae new species, Condylocardia elongata new spe...

There are three Recent eastern Pacific species of Sanguinolaria, S. ovalis Reeve, 1857, S. tellinoides A. Adams, 18 0, and S. tenuis Olsson, 1961, and one species of Psammotella, P. bet-tin! (Pilsbry and Lowe, 1932). A neotype for R bertini and lectotypes for S. tellinoides and its junior synonym S. purpurea are designated herein. The distributions...

There are 18 Recent species of the Corbulidae in the eastern Pacific, of which one has been introduced from the northwestern Pacific. Division of Corbula into additional genera is premature without new characters and a formal cladistic analysis. Seven subgenera are utilized, with six species remaining in Corbula, s. l. Three new species are describ...

In spite of the number of available names, there are only three eastern Pacific species of Cyclinella. (I) Cyclinella jadisi Olsson, 1961, occurs from the head of the Gulf of California to Guayas Province, Ecuador, from the intertidal zone to 31 ill. (2) Cyclinella producta (Carpenter, 1856) occurs from Laguna Ojo de Liebre, Pacific coast of Baja C...

Panacca chilensis is described from off the Islas Juan Fernández, Chile, in 130-180 m, and is compared to other members of the family. All Recent species of the Pholadomyoidea are also listed to facilitate access to the relevant literature.

A study has been conducted of the type and other material of the Recent eastern Pacific species of the bivalve genus Gari Schumacher, 1817. There are seven species of Gari (Gab­ raeus): (1) Gari (G.) califarnica (Conrad, 1849) (synonyms: Psammabia rubroradiata Carpenter, 1864; P. lilacina Wilkins, in Palmer, 1958 [in synonymy]) occurs from Kachemak...

Now available as a digital reprint on Google Play: https://bit.ly/3wCCxLl, and Apple Ibooks: https://apple.co/3GzSYf7. The culmination of a ten year study, this book treats all bivalve mollusks living from northern Baja California, Mexico to the Arctic Alaska. A total of 472 species are described and illustrated with detailed photographs and drawin...

There are four eastern Pacific Ocean species of the genus Sphenia: (1) Sphenia fragilis (H. Adams and A. Adams, 1854), occurs in a variety of nestling situations from the intertidal zone to shallow water, from Santa Barbara County, California, to Guayas Province, Ecuador, and has as synonyms S. fragilis Carpenter, 1857; S. pacificensis de Folin, 18...

The non-indigenous Latemula (Exolaternula) marilina (Reeve, 1860) (Bivalvia: Laternulidae) has been redis­ covered in the northeast Pacific in Humboldt Bay, Cali­ fornia (40 0 49'N, 124°14'W). The first and only previous records of this species from the northeast Pacific are from Coos Bay, Oregon (43°25'N, 124°2TW) where two spec­ imens were recove...

The taxonomy of the eastern Pacific species that have been allocated to the bivalve family Sportellidae is reviewed. All taxa are members of the tropical fauna. The genus Basterotia is represented by five species: B. californica Durham, 1950, here reported from the Recent fauna for the first time; B. obliqua and B. panamica, two new species, the la...

The taxonomy of 16 Recent eastern Pacific species that have been allocated to the bivalve genus Petricola is discussed. Two new species, Petricola hertzana and P. scotti are described. Fifteen lectotype designations are made. One species is placed in the genus Choristodon, two in the genus Petricolaria, four species in Petricola (Petricola), and fi...

This checklist provides an inventory of marine bivalve mollusk taxa from the Arctic coast of Alaska to central Baja California, including all habitats from the intertidal to the deep-sea. The depth coverage is greater than recently published lists by Turgeon et al. (1988, and in preparation), which is limited to species occurring in under 200 m.

Rocas Alijos, also known as the Alijos Rocks, are remnants of a small volcano arising from deep water off southern Baja California, Mexico (24°57′36″N, 115°45′54″W), 185 nautical miles due west of Cabo San Lazaro and Bahía Magdalena. Nothing had been known of the molluscan fauna of Rocas Alijos prior to the Cordell Expedition of October-November 19...

As the publication dates of earlier issues of The Nautilus are nowhere readily accessible, the purpose of this note is to provide this information in a single comprehensive listing. Although six indices have been published for The Nau­ tilus and for its predecessor, The Conchologists Ex­ change (Pilsbry & Johnson, 1895; Henderson, 1927; La Rocque,...

Lorenzo Gordin Yates (1837-1909) was an early amateur naturalist in California, who had a particular interest in malacology. He introduced seven new names for mollusks, of which five are currently regarded as valid. Type material is extant for four of the six species-group taxa.