Ceara cavallari who is

Colored photographs of type specimens, as well as information on type Colored photographs of type specimens, as well as information on type material, distribution and taxonomy are also provided. The list encompasses 42 recently described species, largely pulmonates, including 39 terrestrial, and three freshwater taxa.

The appendix lists native species whose known geographical ranges in Brazil have been extended considerably during this period, as well as those previously unrecognized in Brazil. Range extension of Pseudotorinia phorcysi Gastropoda: Architectonicidae from the SW Atlantic, with remarks on its ontogeny more. They live in shallow to deep water, and have turbinate to discoidal shells, They live in shallow to deep water, and have turbinate to discoidal shells, with a typically wide umbilicus and a downward-pointing heterostrophic protoconch Healy, Its original description was based on a single eroded juvenile specimen collected by the French-Brazilian expedition " Marion Dufresne " MD55 in the late s Cavallari et al.

This effectively expands the species' geographic and bathymetric ranges. Its older age, evidenced by a greater number of whorls and larger size, also allowed further ontogenetic observations, which are discussed below. The family Seguenziidae of marine snails is distributed worldwide, usually living in bathyal depths between — m on fine sedimentary substrates. They are commonly found in collections of deep-water mollusks in small numbers and as They are commonly found in collections of deep-water mollusks in small numbers and as empty shells only.

As such, their classification is almost exclusively based on shell characters Quinn a. The use of the terrestrial snails of the genera Megalobulimus and Thaumastus as representatives of the atmospheric carbon reservoir more.

In Brazilian archaeological shellmounds, many species of land snails are found abundantly distributed throughout the occupational layers, forming a contextualized set of samples within the sites and offering a potential alternative to the In Brazilian archaeological shellmounds, many species of land snails are found abundantly distributed throughout the occupational layers, forming a contextualized set of samples within the sites and offering a potential alternative to the use of charcoal for radiocarbon dating analyses.

In order to confirm the effectiveness of this alternative, one needs to prove that the mollusk shells reflect the atmospheric carbon isotopic concentration in the same way charcoal does. In this study, 18 terrestrial mollusk shells with known collection dates from to AD, around the nuclear bombs period, were radiocarbon dated. The obtained dates fit the SH bomb curve within less than 15 years range, showing that certain species from the Thaumastus and Megalobulimus genera are reliable representatives of the atmospheric carbon isotopic ratio and can, therefore, be used to date archaeological sites in South America.

Solariella quadricincta Quinn, and S. This species turns out to be more variable and wide-ranging than initially assumed. A list of the examined material can be found at the end of this manuscript. Important items 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.

Brandt s , P. Temcharoen s and W. Maassen s , 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. Publication Date: Nov 1, Check List. Taxonomic revision of Leiostracus onager and Leiostracus subtuszonatus Gastropoda: Pulmonata: Orthalicidae more.

Publication Name: Journal of Conchology. Zoology , Land Snails , Brazil , and Conchology. A new species of Megalobulimus Gastropoda, Strophocheilidae from Brazilian shell mounds more.

It is described here as Megalobulimus jaguarunensis sp. Shells and bytes: mollusks in the bit era more. Mollusks are one of the most diverse groups of organisms known to science. Humanity has described more than 80, species of snails and slugs gastropods , clams, oysters and scallops bivalves , squids and octopuses cephalopods , tusk Humanity has described more than 80, species of snails and slugs gastropods , clams, oysters and scallops bivalves , squids and octopuses cephalopods , tusk shells scaphopods and their less-known kin e.

These soft-bodied and most often shell-bearing animals present a wide variety of shapes, colors and behaviors that has fascinated mankind for ages.

Used as currency, tools, jewelry, medicine, and extensively collected and depicted in many different ways, mollusks are strongly tied to human history. It is not surprising that they were, and still are an important part of different cultures everywhere. Naturally, in our everyday lives, some of us portray mollusks and their shells in paintings and decoration. Helicina schereri Baker, Baker, F.

Alcadia Alcadia schereri: Haas, Haas, F. Zurkenntnis der binnen-Mollusken N. Senckenbergiana, 21 : Material examined: Types.

Uchoa leg. Bianchi leg. Silva leg. The characteristic yellowish-reddish bronze color and sculpture consisting of well-marked, thin spiral sulci Fig. The same is true for the semilunar aperture and thickened outer lip older specimens, Fig. The specimen on Fig. It also retains the sculpture consisting of spiral sulci, which are visible on the uppermost portion of the body whorl and on the spire whorls.

The specimens on Fig. Nevertheless, some of the differences observed here may represent geographical variations, though any assertions depend on more samplings.

A single specimen from Lagoa Santa MZSP , not illustrated is fragmentary but still retains enough characters that allowed its identification.

The records presented herein greatly expand the distribution of H. There are still wide gaps in its range, and investigating nearby localities that harbor the same biomes may reveal novel and important records. A wide geographic range for a small and slow-moving snail is enigmatic. The known occurrence of H. On the other hand, we have noticed minor conchological differences among samples coming from different regions within the range of the species. This could either indicate the presence of multiple species with somewhat similar shells, or a single, variable entity.

This problem can only be solved with further samplings aimed at obtaining whole specimens for anatomical and molecular investigations. DOI: Cavallari , L. Simone Published 19 April Geology Arene lychee sp.

View PDF. Save to Library Save. Create Alert Alert. Share This Paper. A new species of Galatheidae, genus Munida, is described from off northeastern Brazil.