Neogyptis Pleijel, Rouse, Sundkvist & Nygren, 2012

Rizzo, Alexandra E. & Salazar-Vallejo, Sergio I., 2014, Hesionidae Grube, 1850 (Annelida: Polychaeta) from South-Southeastern Brazil, with descriptions of four new species, Zootaxa 3856 (2), pp. 267-291 : 277-278

Key to species of Neogyptis Pleijel, Rouse, Sundkvist & Nygren, 2012

1 Prostomium with eyes................................................................................. 2

– Prostomium without eyes; pharynx with 10 papillae; median antenna subdistally constricted; 27 segments......................................................... N. hinehina Pleijel, Rouse, Sundkvist & Nygren, 2012 Lau Basin, S Tonga

2(1) Eyes dark, black or brown-black......................................................................... 3

– Eyes red............................................................................................ 5

3(2) Pharynx with 10 papillae; median antenna blunt, placed towards anterior prostomial margin......................... 4

– Pharynx with 35–80 papillae; median antenna tapered; 36 segments; eyes coalescent.... N. rosea (Malmgren, 1874) Sweden

4(3) Eyes arranged into a single series, external ones larger, reniform; 24 segments......................................................................................... N. fauchaldi Pleijel, Rouse, Sundkvist & Nygren, 2012 Belize

– Eyes arranged in two series, anterior ones larger; 27 segments..................................................................................... N. vostokensis Pleijel, Rouse, Sundkvist & Nygren, 2012 Vostok Bay, Sea of Japan

5(2) Pharynx with 10 papillae............................................................................... 6

– Pharynx with 20 or more papillae........................................................................ 8

6(5) Median antenna tapered................................................................................ 7

– Median antenna blunt; eyes distinct arranged into two series, anterior ones larger, weakly reniform; maximal number of seg- ments unknown.................................... N. sp. A Pleijel, Rouse, Sundkvist & Nygren, 2012 Florida, USA

7(6) Eyes coalescent, anterior ones larger; 28 segments....... N. carriebowcayi Pleijel, Rouse, Sundkvist & Nygren, 2012 Belize

– Eyes distinct arranged into two series, anterior ones slightly larger; 39 segments.................................................................................................... N. crypta (Pleijel, 1993) North Carolina, USA

8(5) Median antenna tapered................................................................................ 9

– Median antenna blunt; pharynx with 60 papillae; eyes minute, distinct, arranged into two series, anterior ones larger; maximal number of segments unknown......................................................... N. nonatoi n. sp. S Brazil

9(8) Pharynx with 20–32 papillae; anterior eyes slightly larger; 32 segments............................................................................................................... N. mediterranea (Pleijel, 1993) S France

– Pharynx with 35–40 papillae; anterior eyes twice as large as posterior ones; maximal number of segments unknown.................................................................. N. plurisetis ( Hilbig, 1992) Gulf of Mexico, S Florida