DESCRirUON OF SPECIES. 



The following is a complete list of all the species of Serolis that are known to me 

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

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

 first published description ; the}- are arranged in order of discover}'. 



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



Islands, New Zealand (?), Senegal (?), 5 fathoms. 



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



3. Serolis gaudichaudii, Aud. and ]M. E., Arch. d. Mus., 1841 ; Valparaiso, a few fathoms. 



4. Serolis planus,^ Dana, United States E.xpl. Exp. — Crustacea, part ii. p. 794, 1852 : Patagonia, a few- 



fathoms. 



5. Serolis cnneexa, Cunningham, Trans. Linn. Sue. Lond., 1871 ; Patagonia, a few fathom.*. 



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



? 7. Serolis acufangida, Gr. ; Locality ? 



8. Serolis tuherciilata, Cir., Archiv f. Naturgesch., 1875 ; Bass Strait. 



9. Serolis latifrons CWhite), Miers, Ann. and Mag. Xat. Hist., Ser. 4, vol. xvi. ; Kerguelen, Crozets, 



Acukland Islands, 1-210 fathoms. 



10. Serolis sejjtemcarinafa (Miers) ( = Serolis oralis, St.), Ann. and Mag. Nat. Hist., Ser. 4, vol. xvi. ; Mai'if>n 



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



11. Serolis cornnta, Studer, Archiv f. Naturgesch., 1879; Crozets, Kerguelen, 1-120 fathcmis. 



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



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



14. Serolis hromleyana, Suhm, Proe. Roy. Soc. Lond., vol. xxiv. p. 591 ; off east coast of New Zealanil, 



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

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



15. Serolis necera, F. E. P., Pro';. Zool. Soc. Lond., 1884, pt. iii. p. 331 ; oft' Eio Janeiro, 600 and 2040 



fathoms. 

 ' 16. Serolis graeilis, F. E. B., loc. eit.; off Pernambuco, 675 flithoms. 



~ 17. Serolis untarcliea, F. E. B., lor. eit.; off Pernambuco, 410 fathoms; near Crozets, 1375 and 1600 

 fathoms. 

 18. Serolis australiensis, F. E. B., loe. eit.; Australia, 38 fathoms. 

 ■■ 19. Serolis elongata, F. E. B., lor. e>f.; Australia, 30 fathoms. 

 "■' 20. Serolis pallirla, F. E. B., loe. eit.; Australia, 35-40 fathoms. 

 '21. Serolis longicaudata, F. E. P., loc. eit.; Australia, 38 fathoms. 

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



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

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



' It seems to me legitimate to alter the termination •' ».< " into " n " as done by Grube ; I have accordingly followed 

 Urube in the text. 



