Entomolepididae, , Brady, 1899

Borges, Camila, Farias, Amilcar, Mácola, Rosa, Neves, Elizabeth G. & Son, Rodrigo Johns-, 2021, A new Entomolepididae genus and a new species of Spongiopsyllus Johnsson, 2000 (Copepoda, Siphonostomatoida) and their association with Aplysina Nardo, 1834 (Porifera, Demospongiae) in Todos-os-Santos Bay, Bahia, Brazil, Zootaxa 4981 (2), pp. 301-316 : 313-314

Key to the species of the Entomolepididae (adapted from Farias et al. 2020)

1. Pedigerous somite 2 free in dorsal view................................................................... 2

– Pedigerous somites 2 and 3 free in dorsal view............................................................. 8

2. Most of urosome exposed.............................................................................. 3

– Most of urosome hidden under body shield................................................................ 4

3. Female antenna 3-segmented; antennule 18-segmented with aesthetasc on segment 15... Parmulella emarginata Stock, 1992

– Female antenna 4-segmented; antennule 17-segmented with aesthetasc on segment 16 ............................................................................................... Neoparmulella periperiensis Farias et al. 2020

4. Leg 3 biramous...................................................................................... 5

– Leg 3 uniramous (Paralepeopsyllys Ummerkutty, 1960) ....................................................... 6

5. Leg 4 reduced to a knob and antennule 17-segmented............................ Parmulodes verrucosa Wilson, 1944

– Leg 4 absent and antennule 16-segmented.............................. Parmulopsyllus iamarinoi gen. nov. sp nov.

6. Antennule 15-segmented................................................ Paralepeopsyllys leei Lee & Kim, 2017

– Antennule 14-segmented............................................................................... 7

7. Third exopodal segment of leg 3 with three setae.................... Paralepeopsyllus mannarensis Ummerkutty, 1960

– Third exopodal segment of leg 3 with four spines and three setae........ Paralepeopsyllus dambayensis Lee & Kim, 2017

8. Leg 4 absent ( Entomolepis Brady 1899 )................................................................... 9

– Leg 4 present....................................................................................... 10

9. Caudal ramus 5-6 times longer than wide................................................. E. ovalis Brady, 1899

– Caudal ramus at least 10 times longer than wide....................................... E. hamondi McKinnon, 1899

10. Leg 4 endopod absent................................................................................ 11

– Leg 4 endopod reduced to small segment ( Lepeopsyllus Thompson & Scott, 1903 )................................ 12

11. Three postgenital somites in female and four in male ( Spongiopsyllus Johnsson, 2000 )............................. 13

– Two postgenital somites in female and three in male ( Entomopsyllus McKinnon, 1988 )............................ 16

12. Female antennule 15-segmented............................................. L. typicus Thompson & Scott, 1903

– Female antennule 13-segmented............................................... L. ovalis Thompson & Scott, 1903

13. Female antennule 14-segmented....................................... Spongiopsyllus atypicus Canário et al., 2019

– Female antennule with 15 or more segments.............................................................. 14

NEW 14. Female antennule 15-segmented...................................... Spongiopsyllus redactus Canário et al., 2012

– Female antennule with 16 or more segments.............................................................. 15

15. Female antennule 16-segmented............................................. Spongiopsyllus intermedius sp. nov.

– Female antennule 17-segmented........................................ Spongiopsyllus adventicius Johnsson, 2000

16. Endopod of P1 shorter than exopod............................................... E. nichollsi McKinnon, 1988

– Endopod of P1 longer than exopod...................................................................... 17

17. Female antennule 15-segmented; third exopod of leg 4 showing 2 setae........................... E. stocki Kim, 2004

– Female antennule with more than 16 or more segments; third exopod of leg 4 showing 3 or more setae................ 18

18. Female antennule 16-segmented; third exopod of leg 4 showing 3 setae........................ E. adriae ( Eiselt, 1959)

– Female antennule 17-segmented; third exopod of leg 4 showing 4 setae............... E. brevicaudatus Lee & Kim, 2017