title: Thamnocephalus chacosaltensis, a new species of Anostraca (Crustacea: Branchiopoda) from Salta province (Argentina).
abstract: Thamnocephalus chacosaltensis, a new species of fairy shrimp, was found in a temporary turbid pond in the Rivadavia Department, Salta province, Argentina (24º13'19.3''S; 62º 52'14.3''W), belonging to the Chaco salteño. The males present a well developed frontal appendage. Their First (FB) and Third (TB) branches show features diagnostic for the species. FB shows three sub-branches; the most proximal one is coiled, lacks spines all along, gradually thins in distal direction and flattens in the distal half; distally, the flattened portion is folded and ends blunt, bearing a small spine at the tip. TB is a broad-based triangular, thin, much flattened and folded outgrowth, with a small spine at the apex. Male genital and abdominal segments lack medio-ventral spines near their posterior margins. Comparisons with the other species of the genus are established.
authors.affiliation: Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab. II, Departamento de Biodiversidad y Biología experimental, C 1428 EHA Núñez, Ciudad Autónoma de Buenos Aires, Argentina.; Email: cohen@bg.fcen.uba.ar.
authors.forename: Rosa Graciela
authors.initials: RG
authors.lastname: Cohen
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D033202:Anostraca / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D001118:Argentina; D049628:Body Size; D005260:Female; D008297:Male; D009929:Organ Size