Pseudoniphargidae Karaman 1993

Autor: Lowry, J. K., Myers, A. A.
Rok vydání: 2012
Předmět:
DOI: 10.5281/zenodo.5278928
Popis: Pseudoniphargidae Karaman, 1993 Type genus. Pseudoniphargus Chevreux, 1901. Included genera. Parapseudoniphargus Notenboom 1988; Pseudoniphargus Chevreux, 1901. Diagnostic description. Head eyes absent. Lingueolus absent. Antenna 1 longer than antenna 2; peduncular article 1 longer than article 2; accessory flagellum short, or minute. Antenna 2 peduncular article 1 bulbous. Mandible incisor dentate. Labium with inner plates. Maxilla 1 inner plate setose apically; palps alike. Maxilla 2 inner plate without oblique setal row. Maxilliped inner plate well developed; outer plate small. Body subcylindrical, or laterally compressed. Coxal gills present on coxae 2 to 6, stalked, with or without proximal suture or stalked. Sternal gills absent. Gnathopods 1 and 2 not sexually dimorphic. Gnathopod 1 smaller (or weaker) than gnathopod 2; propodus palm with multiple row of simple or bifid robust setae along palmar margin (reduced in size). Pereopod 4 without posteroventral lobe. Pereopods 5–7: pereopod 5 shorter, pereopods 6 and 7 similar length; dactyli with a few subterminal setae. Pereopod 5 coxa shallow, equilobate; basis expanded, or slightly expanded. Urosomites 1 to 3 free, without robust dorsal setae. Urosomite 1 without distoventral robust seta. Urosomite 2 without paired dorsal setae. Uropod 1 peduncle with 1 or 2 small basofacial robust setae; without ventromedial spine. Uropod 3 biramous; rami sexually dimorphic; without fringing plumose setae; inner ramus minute; outer ramus article 2 absent. Telson notched, emarginate or entire, with robust setae. Remarks. Holsinger (1989) did not include Pseudoniphargus in the Allocrangonyctidae Holsinger, 1971, although he commented on their many shared apomorphies. Karaman (1993), apparently unaware of the Allocrangonyctidae, included Allocrangonyx Schellenberg, 1937 in the Pseudoniphargidae. The two families are separated as follows: antenna 2 peduncular article 1 not enlarged in allocrangonyctids (enlarged in pseudoniphargids); coxal gill not stalked in allocrangonyctids (stalked in pseudoniphargids); pereopod 5 coxa with large anteroventral lobe in allocrangonyctids (posterodorsal in pseudoniphargids); pereopod 7 with setae along posterior margin of dactylus in allocrangonyctids (few subterminal in pseudoniphargids); urosomite 1 with distoventral robust seta in allocrangonyctids (absent in pseudoniphargids); uropod 3, 2-articulate in allocrangonyctids (1-articulate in pseudoniphargids). Distribution. Europe; Mediterranean.
Published as part of Lowry, J. K. & Myers, A. A., 2012, New, mainly southern hemisphere, freshwater families of Amphipoda (Crustacea), together with a description of the first freshwater calliopiid, Lutriwita bradburyi gen. nov. et sp. nov., pp. 27-45 in Zootaxa 3499 on page 37
{"references":["Karaman, G. S. (1993) Crustacea Amphipoda di acqua dolce. Fauna D'Italia, i - x, 1 - 337, Edizione Calderini, Bologna, Italia.","Chevreux, E. (1901) Amphipodes recueillis par la Melita sur les cotes occidentale et meridionale de la Corse, juillet-aout 1891. Compte Rendu, Association Francaise pour l'Avancement des Sciences, 30, 153.","Notenboom, J. (1988) Parapseudoniphargus baetis, new genus, new species, a stygobiont amphipod crustacean from the Guadalquivir River Basin (southern Spain), with phylogenetic implications. Journal of Crustacean Biology, 8, 110 - 121.","Holsinger, J. R. (1989) Allocrangonyctidae and Pseudocrangonyctidae, two new families of Holarctic subterranean amphipod crustaceans (Gammaridea), with comments on their phylogenetic and zoogeographic relationships. Proceedings of the Biological Society of Washington, 102 (4), 947 - 959.","Schellenberg, A. (1937) Die Amphipodengattungen um Crangonyx, ihre Verbreitung und ihre Arten. Mitteilungen aus dem Zoologisches Museum in Berlin, 22, 31 - 44."]}
Databáze: OpenAIRE
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