@article {117, title = {Una nueva Bogidiella (Amphipoda Bogidiellidae) hiporreica de la Provincia de Tucuman (Argentina)}, journal = {Neotropica}, volume = {31}, year = {1985}, pages = {201-209}, abstract = {

A new species of Bogidiella, belonging to a new subgenus is described as B. (Mesochthongidiella) tucumanensis. It was found in the hiporheic biotop from Tafi river, Province of Tucum\án (Argentina).

}, keywords = {Argentina}, author = {Grosso, Luise E and Fern{\'a}ndez, Hugo R} } @article {68, title = {Nuevo genero cavernicola Austral de Bogidiellidae; Patagongidiella n.g. del Noroeste Patag{\'o}nico (Neuqu{\'e}n, Argentina)}, journal = {Bollettino del Museo civico di Storia Naturale di Verona}, volume = {17}, year = {1990}, pages = {357-372}, abstract = {

A new cave-dwelling austral genus of Bogidiellidae; Patagongidiella n. g., from northeastern Patagonia (Neuquen Province, Argentina). Two sympatric species of Patagongidiella n. g.: P. mauryi n. sp. and P. danieli n. sp. were discovered in the superficial sediments of the lagoons from two close by and possibly connected caves: \“caverna del Arenab\” and \“caverna El Gendarme\” in Neuquen Province, Argentina (38\°37\&$\#$39; S 70\°23\&$\#$39; W).
Patagongidiella has coxal plates slightly wider than tall, the 5th and 6th with well developed anterior lobe. Accessory flagellum of antenna I with three segments, molar area of the mandibles with conical shape and mandibular palp with three segments, the second one more expanded. Palp of maxilla I with two segments, external lobe with strong spines with serrated edges; internal lobe with three strong, feathered setae. Three pairs of coxal gills with internal spiral structure. Four mediosternal organs (with respiratory function?) in the sternal parts of segments 4-7. Gnathopods with a crenulated groove on the external palmar edge. With or without modifications in pleopod II ♂ and uropod I ♂.
Differences between the two species are the modification of the feathered setae on the exopodite of pleopod II ♂ and of one spine on the basipodite of uropod I ♂, observed in P. danieli.
In the scheme of Stock (1981) the new genus is considered as a plesiomorphic sister group of the set formed by Bogidiella, Actogidiella and Marigidiella. An apomorphic character, the presence of mediosternal organs on 4th-7th segments (character 10 \&$\#$39;) distinguishes Patagongidiella from the other genera.
Patagongidiella is distinct from all other bogidiellid species known from South America, which belong to Bogidiella Hertzog. Its distribution is the southernmost of the group on the South American continent: south of rio Colorado, territory possibly of allochthonous origin.

}, keywords = {Argentina, phylogeny}, author = {Grosso, Luise E and Fern{\'a}ndez, Hugo R} } @article {65, title = {Geographic distribution of the family Bogidiellidae (Crustacea, Amphipoda) in the Argentine Republic, with description of a new subgenus and a new species}, journal = {PHYSlS, Buenos Aires, sec. B}, volume = {43}, year = {1985}, pages = {49-55}, abstract = {

The only four species of Bogidiellidae known from the Argentine Republic, were found far from the sea, three of them in the Jujuy Province, the fourth is now described as Bogidiella (Dyticogidiella) talampayensis, from La Rioja Province. The meaning of this distribution is discussed.

}, keywords = {Argentina}, author = {Grosso, Luise E and Claps, Guillermo L} } @article {54, title = {Subterranean fresh water fauna of Argentina. I. Two new species of amphipod genus Bogidiella}, journal = {Limnobios}, volume = {1}, year = {1979}, pages = {381-394}, abstract = {

Two new species of Bogidiella Hertzog, named B. cooki and B. purmamarcensis, were collected in the psammon of Rio Grande (Jujuy, Argentina). They belong to the archaic group of species near B. tabascensis of Mexico, with birramous pleopods, accesory flagellum 2-articulated, telson with 8 spines, lenticulary organs and the biggest size known, till 7,5 mm. The most recent marine deposit in this region (Cordillera Oriental) is of Cretaceous age, the Yacoraite formation. A list and a key of all known species are included.

}, keywords = {Argentina}, author = {Grosso, Luise E and Ringuelet, Raul A} } @article {22, title = {Tercer Bogidiellidae (Crustacea Amphipoda) be la cuenca del Rio Grande (Jujuy, Argentina)}, journal = {Neotropica}, volume = {30}, year = {1984}, pages = {223-231}, abstract = {

Third Bogidtellidae (Crustacea Amphipoda) from Rio Grande basin (Jujuy, Argentina). Bogidiella lavillai n. sp. is described from the river\&$\#$39;s basin, where two other congeneric species were discovered before and included in the subgenus Stygogidiella Stock.

}, keywords = {Argentina}, author = {Grosso, Luise E and Claps, Guillermo L} } @article {21, title = {Un caso de simpatria de tres especies del genero Bogidiella (Crustacea, Amphipoda) en el Noroeste Argentino, con la descripcion de dos nuevas especies}, journal = {Stygologia, Leiden}, volume = {4}, year = {1988}, pages = {64-78}, abstract = {

Three species of Bogidiella were collected together in the hyporheal of the river Medina, Sierra de Medina (27\°01\&$\#$39;S 65\°04\&$\#$39;W) Tucuman, Argentina.
One of the species B. tucumanensis Grosso \& Fernandez, 1985 was already known from the Taf\í stream, sierras de San Javier, 30 Km to the southwest; the two others are new B. horcomollensis n. sp. has also been collected in Las Ca\ñas river, Sierras de San Javier, 8 km south of the Taf\í stream, and B. ringueleti n. sp. has been found in the type locality only. Both new species are described (both sexes).
B. horcomollensis is the most plesiomorphic of these species. It is characterized by the outer lobe of the second maxilla bearing less than 10 spines; the second male pleopod in which the outer plumose seta of the second article is modified into a foliaceous structure with short spinules on the edge; the outer lobe of maxilliped bearing 2 spines; the inner lobe of the second maxilla having the inner spine more developed than the other ones. There are no modifications in the second male uropod in the first male of female uropods, or in the first male pleopod.
B. ringueleti possesses more than 10 spines on the outer lobe of the second maxilla; the second male pleopod is modified as in B. horcomollensis, however it lacks spinules on the edge, but shows a spinulose area in the enlarged basal part; the second male uropod has a shortened and enlarged peduncle and endopod, with a strongly developed hollow spine and another small one which closes the cavity; the telson is longer than wide; the outer lobe of the maxilliped carries 4 spines; the inner lobe of the second maxilla has the inner spines more developed than die others; the first male and female uropods, as well as the first male pleopod do not show modifications.
B. tucumanensis shares similar modifications with the former species in the second male pleopod; like B. ringueleti it has modifications in the second male uropod and it possesses two autapomorphies: slight modifications in the first uropod of both sexes and in the first male pleopod, the exopod of which is shortened and enlarged, the external element of the second article being bent in a right angle.
Through phylogenetic analysis we found that the three species form a monophyletic group sharing the same modification in the second male pleopod. В. ringueleti and B. tucumanensis possess three synapomorphies: the second male uropod with the same modification, the edge of the foliaceous seta of the second male pleopod without spinules and the number of spines of the outer lobe of the second maxilla being 10 or more.
Because of the different combinations of modified appendages and according to recent systematic criteria, the three species belong to three different subgenera: В. horcomollensis belongs to Stygogidiella Stock. В. ringueleti to Dyctiogidiella Grosso \& Claps, and В. tucumanensis to Mesochtongidiella Grosso \& Fernandez.
A lack of articulation in the palp of the first maxilla of some individuals of B. horcomollensis and B. ringueleti was observed; this variable character was used in the past to establish genera in this family.
The high rate of supernumerary spines in the telson, and the intermediate shapes between the modified male pleopod in mixed populations of В. tucumanensis and the unmodified one is considered a sign of hybridization. Such variations were not observed in isolated populations of B. horcomollensis and B. tucumanensis. B. ringueleti was never found in allopatric situations, and has been described on the basis of individuals without traces of hybrization.
Although the close phylogenetic relationships and lack of exclusion is suggestive of sympatric speciation, the meeting of the three species after differentiation by allopatric speciation before the formation of the Sierra de Medina is considered to be more probable.

}, keywords = {Argentina, phylogeny}, author = {Grosso, Luise E and Fern{\'a}ndez, Hugo R} }