The Lampropidae (Crustacea: Cumacea) of the World Author Gerken, Sarah text Zootaxa 2018 2018-06-01 4428 1 1 192 journal article 22652 10.11646/zootaxa.4428.1.1 e10e53f2-0e1b-46f6-8b0f-af19d5529711 1175-5326 3769771 2419A7F0-5AED-47EC-86BB-06AADB2A4BD9 Key to the species of Platytyphlops 1. Carapace with multiple ridges, not including marginal carina.................................................. 11 - Carapace without ridges except marginal carina, may have branchial swellings..................................... 2 2. Marginal carina serrate................................................................................. 4 - Marginal carina entire.................................................................................. 3 3. Uropod peduncle with 5 setae medially............................................................. P. cherkii - Uropod peduncle with more than 10 setae medially................................................. P. orbicularis 4. Carapace covered with teeth, spines or tubercles, dorsal of marginal carina........................................ 5 - Carapace with few or no teeth, spines or tubercles............................................................ 8 5. Carapace covered with acute teeth or spines................................................................. 6 - Carapace covered with blunt tubercles..................................................................... 7 6. Carapace with acute teeth or spines dorsal of margin carina only. P5 minute, shorter than article 1 of antennule peduncle........................................................................................... P. echinatus n. sp. - Carapace with acute teeth or spines ventral of marginal carina. P5 longer than article 1 of antennule peducle..................................................................................................... P. bamberi n. sp. 7. Antennule article 1 expanded as wing-like shape.................................................. P. tuberculatus - Antennule article 1 normal, cylindrical shape................................................... P. petrescui n. sp. 8. Antennule accessory flagellum at least as long as main flagellum................................................ 9 - Antennule accessory flagellum shorter than main flagellum................................................... 10 9. Carapace as wide as long........................................................................ P. girardi - Carapace distinctly longer than wide........................................................... P. semiornatus 10. Marginal carina teeth equal in size throughout.................................................. P. carpusserratus - Marginal carina teeth decreasing in size posteriorly................................................. P. corolliferus 11. Uropod endopod article 1 twice the length of articles 2 and 3 together or more.................................... 12 - Uropod endopod article 1 less than twice the length of articles 2 and 3 together.................................... 15 12. Telson with 5 terminal setae............................................................................ 13 - Telson with 3 terminal setae............................................................................ 14 13. Uropod endopod article 1 with 28 or more setae.................................................. P. lowryi n. sp. - Uropod endopod article 1 with 20 setae.......................................................... P. arafurensis 14. Submedian pair of ridges short, produced as blunt tooth............................................. P. peringueyi - Submedian pair of ridges half length of carapace.................................................... P. grimaldii 15. Carapace with 1 ridge parallel to marginal carina, short submedian pair of ridges........................... P. ledoyeri - Carapace with at least 3 pairs of ridges.................................................................... 16 16. Eye lobe with at least 2 lenses or tumidities................................................................ 17 - Eye lobe entirely without lens or tumidities................................................................ 19 17. Carapace ridges tall, narrow, with undulating hyaline margin.......................................... P. racovitzai - Carapace ridges blunt................................................................................. 18 18. Carapace ridges with margins not undulate, pseudorostrum pointed...................................... P. mawsoni - Carapace ridges incomplete, pseudorostrum excavate.................................................... P. latus 19. Central terminal seta on telson much shorter than outer pair terminal setae........................... P. taylorae n. sp. - Terminal setae on telson equal.......................................................................... 20 20. Telson much shorter than uropod peduncles................................................................ 21 - Telson as long or longer than uropod peduncles....................................................... P. asperus 21. Ridge on the pseudorostrum........................................................................ P. rossi - Pseudorostrum without ridges.................................................................... P. crosnieri