Arcitalitrus Hurley, 1975: 161
Friend, 1987: 35
The Amphipod Genus Arcitalitrus (Crustacea: Amphipoda: Talitridae) of New South Wales Forests, With Descriptions of Six New Species
R Peart
Records of the Australian Museum
2006
58
97
118
7NPLM
Hurley
Hurley
1975
[995,1220,190,214]
Malacostraca
Arcitalitridae
Arcitalitrus
Animalia
Amphipoda
1
98
Arthropoda
genus
Arcitalitrus Hurley, 1975: 161.– Friend, 1987: 35.
Typespecies. Talitrus sylvaticus Haswell, 1879, original designation.
Diagnosis. Gnathopod 2 not sexually dimorphic. Maxilliped outer plate distally acute/arcuate. Pleopods 1 and 2 well developed, pleopod 3 reduced. Species composition. Arcitalitruscontains nine species: Ar. bassianus Friend, 1987; Ar. belbucca n.sp.; Ar. bundeena n.sp.; Ar. dorrieni( Hunt, 1925); Ar. moonpar n.sp.; Ar. nana n.sp.; Ar. orara n.sp.; Ar. sylvaticus( Haswell, 1879); Ar. thora n.sp.
Key to the species of the genus Arcitalitrus1 Epimeron 3 posteroventral margin serrulate ............................................... Arcitalitrus bassianus —— Epimeron 3 posteroventral margin smooth ................................................................................... 2 2 Epimeron 2 subequal in length to epimeron 3 ............................................................................... 3 —— Epimeron 2 longer than epimeron 3 .............................................................................................. 6 3 Gill 6 anterior margin convoluted, subapically incised ................................................................. 4 —— Gill 6 posterior margin convoluted, apically incised .......................................... Arcitalitrus thora4 Pleopod 3 rami absent .................................................................................................................... 5 —— Pleopod 3 uniramous ............................................................................................ Arcitalitrus nana5 Telson entire ........................................................................................................ Arcitalitrus orara —— Telson apically incised ................................................................................. Arcitalitrus sylvaticus—— Telson deeply incised ..................................................................................... Arcitalitrus belbucca 6 Epimeron 3 posteroventral corner with subacute tooth ............................... Arcitalitrus bundeena —— Epimeron 3 posteroventral corner rounded ................................................... Arcitalitrus moonpar—— Epimeron 3 posteroventral corner subquadrate .............................................. Arcitalitrus dorrieni