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/11901721nas a2200181 4500008004100000245019500041210006900236300001000305490000900315520105300324653002201377653000901399100002401408700002401432700001801456700001701474856004801491 2006 eng d00aTwo new genera and two new species of the subterranean family Bogidiellidae (Crustacea, Amphipoda) from groundwaters in northern Oman, with notes on the geographic distribution of the family0 aTwo new genera and two new species of the subterranean family Bo a37-560 v12083 a

The bogidiellid amphipod crustaceans Stockigidiella aequimana new genus and species and Omangidiella parvidactyla new genus and species are described from subterranean groundwater habitats in the Sultanate of Oman on the Arabian Peninsula. Stockigidiella is easily distinguished by a row of long, deeply bifid setae on pereopods 5 and 6, whereas Omangidiella is distinguished by a greatly reduced propodus of gnathopod 2 and elongate oostegites; it also possesses a third coxal lobe on the maxilliped, a unique character noted only in three other bogidiellid genera from northern and eastern Africa. At present, the family Bogidiellidae contains 35 genera and 105 species but a significant number of provisionally recognized new species and possibly several new genera await description. The geographic distribution of the family Bogidiellidae is nearly circumglobal, but species tend to be clustered in discontinuous regions. A number of important questions regarding the origin and biogeographic history of the family remains unanswered.

10aArabian peninsula10aOman1 aIannilli, Valentina1 aHolsinger, John, R.1 aRuffo, Sandro1 aVonk, Ronald uhttps://bogidiellids.myspecies.info/node/8301152nas a2200157 4500008004100000245017900041210006900220300001200289490000800301520056200309653001100871653001800882100002200900700002400922856004800946 1999 eng d00aMegagidiella azul, a new genus and species of cavernicolous amphipod crustacean (Bogidiellidae) from Brazil, with rem arks on its biogeographic and phylogenetic relationships0 aMegagidiella azul a new genus and species of cavernicolous amphi a572-5800 v1123 a

Megagidiella azul, a new genus and species, is described from Gruta do Lago Azul, a cave in central-western Brazil. With a body length of more than 16 mm, this species is the largest bogidiellid recorded to date. In addition to its large size, the absence of a mandibular palp is a unique diagnostic character for the family Bogidiellidae and alone merits recognition of a new genus. The occurrence of Megagidiella azul in an isolated, inland cave habitat marks another exceptional biogeographic record of a bogidiellid amphipod from South America.

10aBrazil10aSouth America1 aKoenemann, Stefan1 aHolsinger, John, R. uhttps://bogidiellids.myspecies.info/node/8002013nas a2200169 4500008004100000245023100041210006900272300001000341490000600351520134200357653001901699653001001718100002401728700002001752700002301772856004801795 2006 eng d00aBogidiella indica, a new species of subterranean amphipod crustacean (Bogidiellidae) from wells in southeastern India, with remarks on the biogeographic importance of recently discovered bogidiellids on the Indian subcontinent0 aBogidiella indica a new species of subterranean amphipod crustac a45-540 v43 a

Bogidiella indica, new species, is described from three water wells in southeastern India, including a bore-well on the campus of Acharya Nagarjuna University in Nagarjunanagar, a water well in Guntur town, and an agricultural well in the Godavari and Krishna Basin, all in the state of Andhra Pradesh, India. The new species is assigned to the genus Bogidiella Hertzog and to a newly designated species group within the genus. Despite the near circum-global distribution of the family Bogidiellidae, only a single, partially intact specimen of a bogidiellid had been collected from the Indian subcontinent prior to the discovery of specimens from the well in Nagarjunanagar.  Including the new taxon described in this paper, the family Bogidiellidae contains 35 genera and 106 species. Although B. indica is closely similar to other species presently assigned to the genus Bogidiella, it is easily distinguished by a proportionately shorter and relatively heavily spinose pereopod 5. The sexes are generally similar except that the male bears a large, distally modified apical spine on the inner ramus of uropod 1. The location of  the well sites within 45 to 50 km of the eastern coast of India strongly suggests that they lie in an area that was submerged under shallow marine water within the last 1 million years.

10aAndhra Pradesh10aIndia1 aHolsinger, John, R.1 aReddy, Ranga, Y1 aMessouli, Mohammed uhttps://bogidiellids.myspecies.info/node/5601293nas a2200157 4500008004100000245019200041210006900233300001200302490000800314520069400322653001101016653001401027100002201041700002401063856004801087 2000 eng d00aRevision of the subterranean amphipod genus Spelaeogammarus (Bogidiellidae) from Brazil, including descriptions of three new species and considerations of their phylogeny and biogeography0 aRevision of the subterranean amphipod genus Spelaeogammarus Bogi a104-1230 v1133 a

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.

10aBrazil10aphylogeny1 aKoenemann, Stefan1 aHolsinger, John, R. uhttps://bogidiellids.myspecies.info/node/1201587nas a2200145 4500008004100000245017100041210006900212300000900281490000600290520105600296653001001352653000801362100002401370856004701394 1992 eng d00aFour new species of subterranean amphipod crustaceans (Artesiidae, Hadziidae, Sebidae) from Texas, with comments on their phylogenetic and biogeographic relationships0 aFour new species of subterranean amphipod crustaceans Artesiidae a1-220 v33 a

Four new stygobiont amphipod crustaceans are described from a variety of groundwater habitats (e.g., caves, springs, interstitial media) in south-central and western Texas. The new species are Artesia welbourni (Artesiidae), Holsingerius smaragdinus (Hadziidae), Mexiweckelia hardeni (Hadziidae), and Seborgia hershleri (Sebidae). The new locality records for Artesia in Culberson County, and Holsingerius and Seborgia in Val Verde County are the first for these genera outside the artesian well in San Marcos, Texas, whereas the new record for Mexiweckelia in Medina County documents a significant range extension for this genus from north-central Mexico to south-central Texas. Seborgia relicta, previously described from the artesian well in San Marcos, is also newly recorded from Medina County. Both the phylogenetic and biogeographic implications of these new taxa are discussed at some length because they provide further insight into the origin and evolutionary biology of stygobiont crustaceans in southern Texas and northern Mexico.

10aTexas10aUSA1 aHolsinger, John, R. uhttps://bogidiellids.myspecies.info/node/901901nas a2200157 4500008004100000245007600041210006900117300000900186490000800195520143200203653001001635653000801645100002401653700001901677856004701696 1980 eng d00aThe subterranean amphipod crustacean fauna of an artesian well in Texas0 asubterranean amphipod crustacean fauna of an artesian well in Te a1-620 v3083 a

Subterranean amphipod crustaceans of the suborder Gammaridea have been sampled on a regular basis from the artesian well in San Marcos, Texas, since late 1973. Water in the artesian well comes from the extensive, subterranean Edwards Aquifer, which is associated with the Balcones Escarpment and Fault Zone of south-central Texas. The taxonomically diverse amphipod fauna of the well is believed to be one of the richest of its kind in the world and is composed of five families, six genera, and 10 species. One family, four genera, and six species are newly described herein. Four distinct phylogenetic lineages are represented in the amphipod fauna: crangonyctids, hadzioids, bogidielloids, and sebids.
The zoogeographic and ecological implications of the artesian well amphipod fauna are profound. Approximately 80 percent of the species have obvious affinities with marine or brackish water species and are presumably derivatives of marine ancestors that colonized newly opened freshwater habitats during recession of epeiric seas in the Late Cretaceous. The high taxonomic diversity of the amphipod fauna is probably explained by: (1) exposure of south-central Texas to an extensive marine embayment during the Cretaceous period, (2) complex geological structure of the Balcones Fault Zone and large size of the Edwards Aquifer, and (3) ecological complexity of aquatic communities in the Edwards Aquifer.

10aTexas10aUSA1 aHolsinger, John, R.1 aLongley, Glenn uhttps://bogidiellids.myspecies.info/node/8