DESCRIPTION OF SPECIES. 



The followdng is a complete list of all tlie species of Serolis tlaat are known to me 

 either from the specimens contained in the Challenger Collection or from published 

 descriptions, with the localities and depths at which they occur, and a reference to the 

 first published descrijition ; they are arranged in order of discovery. 



1. Serolis paradoxa (Fabr.) ( = Serolis orhignyi, M.-E.), Mantissa Insectorum ; Patagonia and the Falkland 



Islands, 2^ew Zealand (?), Senegal (?), 5 fathoms. 



2. Serolis trilohitoides (Eights), Trans. Albany Inst., 1833 ; South Shetlands, Patagonia, a few ffitlioms. 



3. Serolis {/audichaudii, And. and M. E., Arch. d. Mus., 1841 ; Valparaiso, a few fathoms. 



4. Serolis ^j/fHHW,^ Dana, United States Expl. Exp. — Crustacea, part ii. p. 794, 1852 ; Patagonia, a few 



fathoms. 



5. Serolis cemvexa, Cunningham, Trans. Linn. Soc. Lend.. 1871 ; Patagonia, a few fathoms. 



6. Serolis schythei, Ltk., Vidensk. Meddel. f. d. nat. Foren. i Kjiibenhavn, 1858; Patagonia, 4-55 fathoms. 

 11. Serolis acutangula, Gr.; Locality? 



8. Serolis tuhercnlata, Gr., Archiv f. Naturgesch., 1875 ; Bass Strait. 



9. Serolis lati/rons (White), Miers, Ann. and Mag. Nat. Hist., Ser. 4, vol. xvi. ; Kerguelen, Crozets, 



Acukland Islands, 1-210 fathoms. 



10. Serolis septemcannaf a (Miers) ( = Serolis oralis, St.), Ann. and Mag. Nat. Hist., Ser. 4, vol. xvi. ; Marion 



Island, Prince Edwards Island, Kerguelen, 1-150 fathoms. 



11. Serolis cornida, Studer, Archiv f. Naturgesch., 1879; Crozets, Kerguelen, 1-120 fathoni.s. 



12. Serolis serrei, Lucas, Bull. Ent. Franq.; Patagonia, a few fathoms. 



13. Serolis carinata, Lockington, Proc. Calif. Acad. Nat. Sci.; San Diego, California. 



14. Serolis Irromleyana, Suhm, Proc. Eoy. Soc. Lond., vol. xxiv. p. 591 ; off east coast of New Zealand, 



between New Zealand and Australia, at lat. 37° 53' S., loug. 163° 18' E. (near Antarctic Ice- 

 Barrier), 410, 700, 1100, and 1975 fathoms. 



15. Serolis necera, F. E. B., Proc. Zoo). Soc. Lond., 1884, pt. iii. p. 331 ; off Pdo Janeiro, 600 and 2040 



fathoms. 



16. Serolis gracilis, F. E. B., loe. rif.; off Pernambuco, 675 fathoms. 



17. Sei-olis antarclica, F. E. B., loc. cit.; off Pernambuco, 410 fathoms ; near Crozets, 1375 and IGOO 



fathoms. 



18. Serolis aiistraliensis, F. E. B., loc. cit.; Australia, 38 fathoms. 



19. Serolis elongata, F. E. B., loc. cit; Australia, 30 fathoms. 



20. Serolis pallida, F. E. B., loc. cit; Australia, 35-40 fathoms. 



21. Serolis longicaudata, F. E. B., loc. cit; Australia, 38 fathoms. 



22. Serolis minuta, F. E. B.; Australia, 38 fathoms. 



From the above list it will be seen that the new species obtained by the Challenger are 

 nearly as many as those previously known. Besides the nine new species already briefly 



' It seems to me legitimate to alter the termination " v.s " into " a " as done by Grube ; I have accordingly followed 

 Grube in the te.xt. 



