Linguimaera Hughes, 2016, sensu lato
Creators: name: Hughes, Lauren E.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Melitidae
Linguimaera

description: Key to Linguimaera sensu lato: Austromaera, Glossomaera, Hamimaera, Linguimaera and Maeraceterus gen. nov., species of Australian waters
1. Gnathopod 2 symmetrical in males and females, not greatly enlarged. Uropod 3 rami distally narrowing................ 2
– Gnathopods asymmetrical in males. Uropod 3 rami not greatly narrowing distally, apically truncate or rounded........... 5
2. Gnathopod 1 propodus subovate, palm subacute to acute. Uropod 3 rami narrowing distally, apically acute, apical robust setae small..................................................................................3 (Austraomaera)
– Gnathopod 1 propodus rectilinear, palm near transverse. Uropod 3 rami narrowing, apical robust setae large.............................................................................................. 4 (Maeraceterus gen. nov.)
3. Male gnathopod 2 propodus length twice breadth.................................... .. A. mastersii (Haswell, 1879a)
– Male gnathopod 2 propodus length 2.5 times breadth................................ A. brevicaudata (Ledoyer, 1984)
4. Gnathopod 2 ischium distal margin with row of long robust setae............................ M. taaroa gen. et sp. nov.
– Gnathopod 2 ischium distal margin with a few slender setae only........................ M. bramblensis gen. et sp. nov.
5. Epimeron 3 posterior margin smooth. Uropod 3 rami short, length less than twice peduncle length, apically margin broadly truncate................................................................................. 6 (Hamimaera)
– Epimeron 3 posterior margin serrate or notched. Uropod 3 rami more than twice peduncle length, apically margins narrowly truncate to rounded.................................................................................... 7
6. Male gnathopod 2 dominant propodus palm near transverse. Telson with apical robust setae only.................................................................................................... H. hamigera (Haswell, 1879b)
– Male gnathopod 2 dominant propodus palm obtuse. Telson with apical and inner margins with robust setae................................................................................................... .. H. thjisseni sp. nov.
7. Epimera 2–3 posterior margin sinusoidal, posterodistal corner with small acute tooth...... G. octodens (Sivaprakasm, 1969)
– Epimera 2–3 posterior margin serrate or notched.................................................8 (Linguimaera)
8. Male gnathopod 2 dominant propodus palm obtuse........................................................... 9
– Male gnathopod 2 dominant propodus palm subacute........................................................ 10
9. Uropod 3 rami greatly elongate, length 3.8 times width........................................... L. daveyi sp. nov.
– Uropod 3 rami long, length 2.5 times width........................................ L. zeidleri Krapp-Schickel, 2008
10. Male gnathopod 2 dominant side, basis anterior margin lined with robust setae........................ .. L. mere sp. nov.
– Male gnathopod 2 dominant side, basis anterior margin without row of robust setae................................ 11
11. Telson inner margin with robust setae..................................................................... 12
– Telson inner margin without robust setae.................................................................. 14
12. Epimeron 3 posterior margin serrate...................................................................... 13
– Epimeron 3 posterior margin smooth, posterodistal corner with well-developed notch.............. L. everardensis sp. nov.
13. Telson inner margin lined with 4 pair of robust setae. Mandibular palp article 3 length half of article 2...................................................................................... L. schicklae Lowry & Springthorpe, 2005
– Telson inner margins with 1 pair of robust setae. Mandibular palp article 3 length more than half article 2............................................................................................. L. pirloti Krapp-Schickel, 2003
14. Telson with lateral robust setae......................................................................... 15
– T elson without lateral robust setae....................................................................... 17
15. Telson entire, apically emarginate........................................... L. boecki Lowry & Springthorpe, 2005
– Telson cleft, divided into two distinct lobes................................................................ 16
16. Male gnathopod 2 dominant propodus, palm with evenly spaced teeth.................. L. gartima Krapp-Schickel, 2003
– Male gnathopod 2 dominant propodus, palm with J-shaped excavation.................. L. kellissa Krapp-Schickel, 2003
17. Uropod 3 rami length less than 3.5 times width............................................................ 18
– Uropod 3 rami length more than 3.5 times width....................................... L. leo Krapp-Schickel, 2003
18. Male gnathopod 2 dominant propodus palm lined with several small teeth, palm corner defined by small tooth........................................................................................... L. tias Krapp-Schickel, 2003
– Male gnathopod 2 dominant propodus palm with two well-developed teeth, palm corner defined by large tooth.............................................................................................. .. L. boeckoides sp. nov.
description: Published as part of Hughes, Lauren E., 2016, New genera, species and records of Maeridae from Australian Waters: Austromaera, Ceradocus, Glossomaera, Hamimaera, Huonella gen. nov., Linguimaera and Maeraceterus gen. nov. (Crustacea: Amphipoda), pp. 1-81 in Zootaxa 4115 (1) on pages 4-5, DOI: 10.11646/zootaxa.4115.1.1, http://zenodo.org/record/255539