The genus Chlamydotheca Saussure (Crustacea: Ostracoda) in northeastern Argentina

Abstract

The genus Chlamydotheca Saussure, 1858 is a typical representative of the Neotropical ostracod fauna that occupies lotic and lentic environments including temporary and permanent ponds. Up to the present, four species have been recorded in Argentina: C. iheringi (Sars), C. incisa (Claus) and C. leuckarti (Claus), and C. symmetrica (Vávra). Temporary and permanent ponds of this region were sampled for ostracods, using a fine mesh net. Three species belonging to the genus Chlamydotheca were collected of which C. arcuata (Sars) is recorded for first time for the Chacoan region. Limb morphology was studied under light microscope and line drawings were made using camera lucida. Valves were photographed under scanning electron microscope and redescriptions of C. arcuata and C. iheringi are provided and distributional aspects of the species sampled are discussed.

Ostrácodos no-marinos de lagos en el altiplano este-centro de México

“…19 short spines). Adults: For a detailed description of adult morphology see Furtos (1933), Smith and Delorme (2010), Díaz and Lopretto (2011) and Rodrí-guez (2011).…”

“…It has been reported in waterbodies from Nayarit (Caballero et al, 2013), Durango (Rodríguez, 2011;Cohuo, 2012), Quintana Roo (Cohuo, 2012), and Tlaxcala, Mexico (Saldivar-López, 2011). Outside Mexico, it has been collected in Brazil (1901), Paraguay (Daday, 1905), Argentina (Díaz, & Lopretto, 2011), USA (Furtos, 1933;Tressler, 1949;Smith, & Delorme, 2010), and Canada (Delorme, 1970).…”

“…It is a typical tropical species that lives in waters ranging from 24 to 39°C (Smith, & Delorme, 2010;Soria-Caballero, 2010). It has been collected in streams, temporary ponds (Díaz, & Lopretto, 2011), warm springs (Smith, & Delorme, 2010;Soria-Caballero, 2010) and wells (Zara-environmental-LCC, 2010). It shows a preference for slow water currents and it has been collected in waters dominated by Ca 2+ , Mg 2+ , K + , Na 2+ , SO 4 2-, CO 3 2-, displaying a salinity range from 600 to 8 000ppm (Soria-Caballero, 2010 Meisch (2000).…”

Occurrence of the large ostracod, Chlamydotheca unispinosa (Baird, 1862), in temporary waters of Montserrat, Lesser Antilles

“…Members of the genus Chlamydotheca can be found in lotic and lentic, permanent and temporary waters (Diaz and Lopretto 2011). The Montserrat specimens were all collected from seasonally dry locations; three temporary pools and a stream, Bottomless Ghaut, which is usually dry during the dry season.…”

Postembryonic development of nonmarine ostracod Chlamydotheca arcuata (Sars, 1901) (Crustacea: Ostracoda), reared in the laboratory

“…Chlamydotheca arcuata was selected for the present study on ostracod ontogeny considering that this parthenogenetic species is large enough to allow each juvenile instar to be easily seen, handled, and dissected. The adult stage of C. arcuata was redescribed in a previous study about the distribution of the genus (Díaz and Lopretto, 2011). This work presents the ontogenical study of the carapace and limbs of the genus Chlamydotheca based on this species.…”