A new species of the genus Dulichiella Stout, 1912 (Crustacea: Amphipoda: Melitidae) from Pecém Harbor, Ceará state, Brazil Author Alves, Jessika Author Johnsson, Rodrigo Author Senna, André R. text Zootaxa 2014 3889 2 289 300 journal article 10.11646/zootaxa.3889.2.7 d66fdd27-a064-4b06-9ee8-dd78f65fa3d1 1175-5326 231579 51C1AD30-8747-428F-B7A6-D09C81AD42A7 Key to species (males) of Dulichiella of the world (modified from Lowry & Springthorpe, 2007 ) 1. Gnathopod 2 propodus distolateral crown with 2 spines...................................................... 2 - Gnathopod 2 propodus distolateral crown with more than 2 spines............................................... 3 2. Antenna 1 peduncular article 1 with 4 robust setae along posterior margin. Pereopods 3–7 dactylar ungues with 1 accessory spine. Epimeron 3 with smooth posterior margin................................................ Dulichiella cotesi - Antenna 1 peduncular article 1 with 3 robust setae along posterior margin. Pereopods 3–7 dactylar ungues with 2 accessory spines. Epimeron 3 with minutely serrate posterior margin...................................... Dulichiella tomioka 3. Gnathopod 2 propodus with 3 spines...................................................................... 4 - Gnathopod 2 propodus with 4 spines......................................................................9 4. Epimeron 3 posterior margin serrate distally................................................................. 5 - Epimeron 3 posterior margin smooth......................................................................6 5. Gnathopod 1 coxa anteroventral margin produced, anterior margin concave........................ Dulichiella anisochir - Gnathopod 1 coxa anteroventral margin not produced, anterior margin straight or slightly convex......... Dulichiella tulear 6. Gnathopod 2 propodus distolateral crown with acute spines.................................... Dulichiella terminos - Gnathopod 2 propodus distolateral crown with rounded spines................................................. 7 7. Pereopods 3–7 dactylar ungues with 1 accessory spine on anterior margin......................................... 8 - Pereopods 3–7 dactylar ungues with 2 accessory spines on anterior margin.......................... Dulichiella oahu 8. Pleonites 1–2 each with 7 dorsal spines. Pereopods 6–7 merus to propodus with bunches of long slender setae................................................................................................ Dulichiella australis - Pleonites 1–2 each with 9 dorsal spines. Pereopods 6–7 merus to propodus without bunches of long slender setae.............................................................................................. Dulichiella spinosa 9. Pleonites 1–3 with sparse dorsal setae.................................................................... 10 - Pleonites 1–3 with dense dorsal setae....................................................... Dulichiella guinea 10. Pereopods 3–7 dactylar ungues with 2 accessory spines on anterior margin........................................ 11 - Pereopods 3–7 dactylar ungues with 1 accessory spines on anterior margin....................................... 16 11. Pereopods 6–7 basis, merus to propodus with bunches of long slender setae...................................... 12 - Pereopods 6–7 without bunches of long slender setae on basis and merus........................................ 13 12. Male gnathopod 1 coxa with anterior margin concave..................................... Dulichiella appendiculata - Male gnathopod 1 coxa with anterior margin straight....................................... Dulichiella pattaniensis 13. Acessory flagellum 5-articulate..................................................... Dulichiella ankeri sp. nov. - Accessory flagellum with 4-articulate.....................................................................14 14. Urosomite 3 with 4 dorsal spines.......................................................... Dulichiella celestun - Urosomite 3 with 2 dorsal spines........................................................................ 15 15. Fourth spine of gnathopod 2 propodus distolateral crown well developed.......................... Dulichiella takedai - Fourth spine of gnathopod 2 propodus distolateral crown not well developed..................... Dulichiella cuvettensis 16. Head with apically truncated lateral cephalic lobe........................................................... 17 - Head with apically rounded lateral cephalic lobe.............................................. Dulichiella lecroyae 17. Pereopod 6 basis posterior margin straight (straight in female).................................... Dulichiella fresnelii - Pereopod 6 basis posterior margin concave (strongly subsigmoid in female)........................ Dulichiella pacifica