01651nas a2200169 4500008004100000245011700041210006900158260001400227300001200241490000700253520109900260653001401359653001301373100002201386700002401408856004901432 1999 eng d00aPhylogenetic analysis of the amphipod family Bogidiellidae s. lat., and revision of taxa above the species level0 aPhylogenetic analysis of the amphipod family Bogidiellidae s lat cNov. 1999 a781-8160 v723 a

The increasing number of world-wide discoveries of subterranean amphipods, especially during the last two decades, has led to additions of numerous new taxa in the stygobiont family Bogidiellidae s. lat. To date, the family is composed of 23 genera and 11 subgenera, and approximately 110 described species. However, given the uneven quality of generic and subgeneric diagnoses in the literature, there is considerable confusion regarding the status of some of the taxa at these levels. Even the family itself lacks a clear definition. In order to gain a better knowledge of the phylogeny of this group, a cladistic analysis, employing both PAUP 3.0s and MacClade, was performed on the genera and subgenera currently assigned to the Bogidiellidae s. lat. Supported by the results of this analysis, the taxonomic structure of this group is completely revised above the species level. The revision excludes 5 genera from the family, all remaining subgenera are elevated to generic level. Four taxa are split, resulting in 5 new genera. The family Bogidiellidae now consists of 33 genera.

10aphylogeny10arevision1 aKoenemann, Stefan1 aHolsinger, John, R. uhttps://bogidiellids.myspecies.info/node/11902524nas a2200157 4500008004100000245012300041210006900164300001200233490000700245520199300252653001402245653001402259100002102273700002402294856004802318 1990 eng d00aNuevo genero cavernicola Austral de Bogidiellidae; Patagongidiella n.g. del Noroeste Patagónico (Neuquén, Argentina)0 aNuevo genero cavernicola Austral de Bogidiellidae Patagongidiell a357-3720 v173 a

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' S 70°23' 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 ') 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.

10aArgentina10aphylogeny1 aGrosso, Luise, E1 aFernández, Hugo, R uhttps://bogidiellids.myspecies.info/node/68