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Revision of the recent Bullata Jousseaume, 1875 (Gastropoda: Marginellidae) with the description of two new species
Abstract
The genus Bullata Jousseaume, 1875 is revised based on conchological characters. All known living species are endemic to Brazil. Two new species are herein described, B. guerrinii and B. analuciae. Bullata guerrinii is most similar to B. largillieri (Kiener, 1841) as both have an enlarged second columellar plication which overrides and fuses with the first, but differs in having a darker coloration, wider aperture, and spire only slightly apparent. Bullata analuciae has similar color pattern to B. largillieri, but differs in having clearly separate first and second columellar plications, a generally larger, thinner shell, a broad aperture and non-denticulated lip. The other 4 known species are described and discussed and a key for identification is presented. A cladistic analysis of Bullata was made using 22 conchological characters (53 states). The single most parsimonious tree obtained (length 37, CI = 81, RI = 69) is as follows: (B. bullata (B. analuciae ((B. largillieri. B. guerrinii) (B. lilacina, B. matthewsi)))). The monophyly of the genus is supported by 8 synapomorphies.
... Regarding the bathymetric ranges, to obtain more reliable records, only the bathymetry of live specimens was used (Online Resource 1), since empty shells can be transported between different sites (post-mortem transport) [e.g., Warwick and Light 2002; Bürkli and Wilson 2017]. Along with the type of larval development, this was another factor that limited our database, since some species only present records of empty shells [e.g., Cerithiopsis aimen Rolán & Espinosa, 1996, Cerithiopsis balaustium Figueira & Pimenta, 2008, Cerithiopsis capixaba Figueira & Pimenta, 2008, and Cosmioconcha helenae (Costa, 1983], or there is no distinction between data from live specimens and empty shells in the studies carried out [e.g., Fernandes and Pimenta (2020) about Triphoridae, Souza and Coovert (2001) about Marginellidae, and Teso and Pastorino (2011) about Olividae]. We also analyzed the bathymetric zone(s) occupied by each species, considering three zones: 0-50.99 m, 51-100.99 ...
The larval stage is a critical aspect of the biology of most marine animals, impacting not only the species fitness but also its bathymetric and geographic distribution. To understand the role of larval dispersion and adult characteristics in the distribution of marine gastropods, the present study assesses the relationship among larval development type (planktotrophic, lecithotrophic, or intracapsular metamorphosis), adult characteristics (body size, depth range, and habitat diversity), and geographic distribution of benthic gastropods inhabiting shallow waters (up to 200 m depth) in the Western Atlantic Ocean. Results were generated using literature and linear mixed model (LMM) and variance partition analyses. Larval development type is the most important predictor of geographical distribution of marine gastropods analyzed here, unlike studies with reef fishes. Along with the type of larval development, the ability to occupy different types of habitats and depth ranges were also important to predict the geographic distribution, but to a lesser extent. The similar dispersal capabilities of planktotrophic and lecithotrophic larvae and the restricted geographic distribution of some species with planktonic larvae are also discussed.
... Family Marginellidae Bullata analuciae Souza & Coovert, 2001; one paratype. Dentimargo gibbus García, 2006 (Figure 66); one paratype. ...
This article lists and comments on the primary and secondary types represented in the collection of the Bailey-Matthews National Shell Museum (BMSM), on Sanibel, Florida, USA. The collection includes 464 type specimens, of which 15 are holotypes, representing 149 taxa, of which 145 are species and four subspecies. The BMSM collection is fully catalogued and posted online via the Museum's website, in addition to iDigBio and GBIF. The publication of this annotated list intends to improve on the accessibility and promote this important group of name-bearing specimens, which includes, among other cases, types originating from orphaned collections and material poorly documented in the original descriptions. Eighty-two types were selected for illustration, and the photos of all BMSM types are available as part of the BMSM online collection catalog.
... Labial teeth: 0= absent; 1= present (Eratoidea aureocincta, E. eburneola, E. sp., E. scalaris, E. watsoni, Marginella glabella, M. rosea, M. sebastiani) (CI: 33; RI: 66). The cystiscids possess parallel folds initiating in immature specimens (Fig. 20); while in marginellids the labial teeth are only formed late in development (Coovert & Coovert 1995;Souza & Coovert 2001) (Figs. 5, 8, 12). These peristome structures are certainly associated with protection against predators, as they constrict the aperture (Nehm 2001). ...
As part of a project intended to review the taxa of Marginellidae worldwide, the phylogenetic relationships of its main representatives are provided based on comparative phenotypy. Characters from most structures and organs are investigated and used for a phylogenetic analysis, resulting in the following cladogram: ((((Marginellona gigas ((Eratoidea watsoni ((Prunum sp—Leptegouana guttata) (Volvarina brasiliana (Prunum prunum—P. rubens)))) (Austroginella muscaria (Marginella ealesae ((Marginella rosea (M. glabella—M. sebastiani)) (Dentimargo bruneolus (Eratoidea scalaris (Dentimargo sp—D. aureocincta)))))))) Pachycymbiola brasiliana*) Persicula sagitatta*) Buccinanops gradatus*). Those marked with * are outgroups functionally analyzed as part of the ingroup (respectively a volutid, a cystiscid and a nassariid); the root is based on Trophon geversianus (Muricidae). The genera Prunum, Marginella and Dentimargo are revealed as non-monophyletic. The monophyly of the family Marginellidae is supported by 17 synapomorphies. The volutids appear to be its sister taxon, and the possibility of Marginellidae being only a branch of Volutidae is discussed.
... Megalobulimus analuciae, Bullata Souza & Coovert, 2001 Bullata analuciae de Souza & Coovert, 2001: 5–6 (figs 2, 8, 11). Gastropoda, Marginellidae Paratype: MZSP 28243 (Fig. 5G–H). ...
An alphabetical list of 352 type lots of molluscs housed in the Museu de Zoologia da Universidade de São Paulo is presented following the standards of the previous list by Dornellas & Simone (2011), with a few adjustments. Important items listed herein include types of species described after the previous compilation, as well as recently acquired paratypes of Asian Pomatiopsidae and Diplommatinidae (Gastropoda) taxa described by Rolf A.M. Brandt (1960s), P. Temcharoen (1970s) and W.J.M. Maassen (2000s), all of which belonged to the private collection of Jens Hemmen, Wiesbaden, Germany. Relevant items also include types of recently described species coming from the French-Brazilian Marion Dufresne MD55 expedition, and other types deposited by researchers from Brazil and the world. A list of authors and photographs of specimens are also provided.
A curatorial revision of the type specimens deposited in the Mollusca Collection of the Museu Nacional / UFRJ, Rio de Janeiro, Brazil (MNRJ) revealed the existence of 518 lots of type specimens (holotypes, neotypes, syntypes and paratypes) for 285 names of molluscan taxa from 88 families, including 247 gastropods, 30 bivalves, three cephalopods and five scaphopods. A total of 106 holotypes and one neotype are deposited in the MNRJ. Type material for ten nominal taxa described as being deposited in the MNRJ was not located; the probable reasons are discussed. Some previously published erroneous information about types in the MNRJ is rectified. A total of 37 type specimens are illustrated.
Type specimens representing 306 species were researched, deposited at the malacological collection
of the Museu de Zoologia da USP. The data on the type specimens are here presented in alphabetical
order of specific epithet, another list is presented based on the authorship of the species,
and an additional systematic list. In the former list the data on the species are presented in
annotated and syntetic way, mainly original and present taxonomical status, list of specimens,
and other pertinent data. Most specimens are illustrated, except for those representing Brazilian
land and freshwater species, which are published in a recent catalogue (Simone, 2006).