@article {141, title = {A phylogeny and classification of the Senticaudata subord. nov. (Crustacea: Amphipoda)}, journal = {Zootaxa}, volume = {3610}, year = {2013}, pages = {1-80}, abstract = {

The Amphipoda includes a large clade defined by the presence of a previously unrecognised synapomorphy, apical robust setae on the rami of uropods 1\–2. We term this clade the Senticaudata subord. nov. (Latin: sentis = thorn). It includes almost all freshwater species as well as a number of marine benthic taxa, formerly part of the \‘Gammaridea\’. The phylogeny of the senticaudates was determined by cladistic analysis of morphological characters and character states. Within the suborder Senticaudata there are six infraorders: Carangoliopsida, Talitrida, Hadziida, Corophiida, Bogidiellida and Gammarida. A classification is provided and all the senticaudate families are diagnosed. We introduce for the first time in amphipod\  classification, the level parvorder between infraorder and superfamily. Four new families are described: Kairosidae; Eriopisidae; Nuuanuidae and Kergueleniolidae.

}, keywords = {phylogeny}, author = {J.K. Lowry and A.A. Myers} } @article {119, title = {Phylogenetic analysis of the amphipod family Bogidiellidae s. lat., and revision of taxa above the species level}, journal = {Crustaceana}, volume = {72}, year = {1999}, month = {Nov. 1999}, pages = {781-816}, abstract = {

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.

}, keywords = {phylogeny, revision}, author = {Koenemann, Stefan and Holsinger, John R.} } @article {75, title = {Cladistic analysis of 37 Mediterranean Bogidiellidae (Amphipoda), including Bogidiella arista, new species, from Turkey}, journal = {Journal of Crustacean Biology}, volume = {18}, year = {1998}, pages = {383-404}, abstract = {

A new subterranean amphipod species, Bogidiella ( Medigidiella) arista, found in the mesopsammic ground waters of southern Anatolia, Turkey, is described, together with Bogidiella (Bogidiella) calicali Karaman, the latter being recorded for the first time in the eastern Mediterranean. A cladistic analysis of 37 Mediterranean species of the family Bogidiellidae is performed, using 4 species from the Canary Islands as an outgroup. Alternatively, 2 cladistic software packages, PAUP 3.1.1 and HENNIG86, are employed to calculate consensus trees of minimal length. The resulting trees show more or less identical robust clades, characterizing a central, a central-eastern, and an eastern Mediterranean group. Apart from this pattern of major geographical clusters, all species of the subgenus Medigidiella appear as a robust, monophyletic clade as well. This initial attempt to analyze the phylogeny of Mediterranean bogidiellids forms a useful basis for further, extended studies, using either different outgroup taxa or additional morphological data.

}, keywords = {Mediterranean, phylogeny, Turkey}, author = {Koenemann, Stefan and Vonk, Ronald and Schram, Frederick 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 {55, title = {A reassessment of the phylogenetic utility of genus-level morphological characters in the family Bogidiellidae (Crustacea, Amphipoda), with description of a new species of Eobogidiella Karaman, 1981}, journal = {ZooKeys}, volume = {610}, year = {2016}, pages = {23-43}, abstract = {

Bogidiellidae is the most diverse and cosmopolitan family of stygobiotic amphipods, and inhabits a variety of subterranean biotopes, especially interstitial habitats. While the family is characterized by considerable sexual dimorphism, this dimorphism has adversely affected our understanding of the systematics of the group. Most species have restricted geographic ranges and occur in difficult to sample habitats, so it is common for individual species descriptions to be based on a single sex. In this work we revisit an analysis of morphological characters in an attempt to clarify their phylogenetic utility in resolving taxonomic relationships among genera by introducing a new species, two additional characters, and phylogenetic statistical support values. Eobogidiella venkataramani sp. n., from a spring fed brook in the Shirawati River basin along the escarpment of the Western Ghats (Karnataka, India) differs from the only known congener, Eobogidiella purmamarcensis, from Argentina, in the structure of mouthparts, the shape and ornamentation on gnathopods and characters of the telson. Our phylogenetic analyses indicate that the available morphological characters are not sufficient to resolve phylogenetic relationships within Bogidiel lidae, thus these characters alone cannot be used to determine the phylogenetic placement of E. venkataramani sp. n. within the family. Nevertheless, E. venkataramani sp. n. shares diagnostic characters with Eobogidiella, supporting placement of the new species in this genus. Our findings point towards a critical need to resolve relationships within the family using molecular approaches, along with the development of a suite of additional morphological characters for Bogidiellidae. This is the third species of Bogidiellidae from southern India.

}, keywords = {India, Karnataka, phylogeny}, author = {Sidorov, Dmitry A and Katz, Aron D and Taylor, Steven J and Chertoprud, Mikhail V} } @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} } @article {12, title = {Revision of the subterranean amphipod genus Spelaeogammarus (Bogidiellidae) from Brazil, including descriptions of three new species and considerations of their phylogeny and biogeography}, journal = {Proceedings of the Biological Society of Washington}, volume = {113}, year = {2000}, pages = {104-123}, abstract = {

Three new subterranean amphipods of the genus Spelaeogammarus da Silva Brum, 1975, are described from eastern Brazil, bringing the total number of species in the genus to four. Based on the examination of type-material of Spelaeogammarus bahiensis, a comparative diagnosis of all four species of Spelaeogammarus. including the new species Spelaeogammarus spinilacertus, Spelaeogammarus trajanoae, and Spelaeogammarus santanensis, is given. A diagnosis for the genus is also provided. The occurrence of these species in caves that are separated from each other in discontinuous karst areas is biogeographically significant for the family Bogidiellidae in continental South America.

}, keywords = {Brazil, phylogeny}, author = {Koenemann, Stefan and Holsinger, John R.} } @article {6, title = {Amsterdam expeditions to the West Indian Islands. Report 14. The taxonomy and zoogeography of the family Bogidiellidae (Crustacea, Amphipoda) with emphasis on the West Indian taxa}, journal = {Bijdragen tot de Dierkunde}, volume = {51}, year = {1981}, pages = {345-374}, abstract = {

The diagnosis of a family of groundwater Amphipoda, the Bogidiellidae, is revised. Based on a cladistic analysis, the former genus Bogidiella is subdivided. In its present conception, the Bogidiellidae comprise eleven named genera, seven subgenera, and 50 named species, whereas several other taxa remain unnamed. These are distributed over all major continents (except Antarctica), and some oceanic islands. This distribution pattern is presumably due to at least two major vicariant processes: the breakup of Pangaea in the Mesozoic and the geological regression movements in the Tertiary. A number of West Indian taxa is described, including four new species.

}, keywords = {British Virgin Islands, phylogeny, Puerto Rico, revision, Venezuela, West India}, author = {Stock, Jan H} }