THE SERTULARIDJi. <>.'' 



nrin llmjn r.MnnAKRT, iii Pallas. Lyst der Plant-Pieren, ITlis, p. 175. 



ni 'in llmjn M. \KATTI, I >c Plantis Xiiiiphytis et l.ithnpliytis, 177(i. p. 29. 

 >i liiilnri'i llmjn F.Muacn s, Fauna Grcenlandica, 17xo, p. 444. 

 S, r/nlnrin llmjn liuoxnvirs, /ciiiph ylaeinm f;r<nn ivianuni, III. l"si. p. :;58. 

 Si-i-tiilni-in llnijn Id. I. is and Soi.AXDiiu, Nat. Mist. Zoophytes, 17xi>, p. 41. 



Xirhi/nrin tlnijn WII.KINS ami II KKBST. in Pallas, Charakteristik ilt'r Thierpflan/.en, 17S7, p. 179. 

 S,rlnlnrin llnijn (TMKI.IX, Systema Natnra-, I.inn.Tiis. IMth ed., 17xs-17n:;. p. :-!s|s. 

 Sn-liilniin llmjn KSTKI:. Hii- I'llan/enthiere in Abbildnn<_'en, 111, 17xs-is:;n, p. |S4. 

 Srrln/nrin thuja I'.IOKKKNIIIII r, Synop. Xat. Hist., (Ireat Britain, I. 17s:i. p. 217. 

 x, r/n/nrin ilnn/n Kst-Ku, Fortaetzungen der Pflanzenthiere, II, 1794-lxoii, pi. xxn 

 Si r/nliiriii llnijn CrviKi:, Tableau Kli'ini'iitairc dc 1'IIist. Nat. ili-s Aniui., 17'JS, p. 066. 

 llnijn Hose, Hist. Nat. dcs Vcrs, III, 1SOL', p. 94. 



ni-iii llnijn TrKTox, I'.riti.-li Fauna, 1SH7, p. L'IM. 



nrin linn/, i JAMEMIV, ( 'atalnirnr Animal.- nl' Class Venues, 1X11. p. 5ii4. 

 Xiiji'llnxl ni in >i rlii/iirin } llnijn UKI:X. I.ehrbucli der NatUrgCSChichte, 1S15, p. 93. 

 Ci-llnrin llnijn I.AMAKCK, Hist. Nat. des Aniin. sans Vert., ISlli, p. i:;il. 

 M-i-liilni-iii llmjn l,AMornc>r.\, Hist, des Polyp, t'ciral. I-'lex., ISlli, p. 195. 

 \i-liilni-in llnijn STKWAIM, Klcinciits nat. hist, animal Kiiii:.. I'd ed., II, 1817, p. 442. 

 Tliiiiiirin tlniin Fi.KMlXt;, I'.ritish Animals, IM'S, p. ."il.'i. 

 Tlniiiirin llniin .M \ccn.i.ivKAY, Ann. and Mat:., IX, 1S4L', p. 464. 

 Tlntinrin llniin TOIIXSTOX, Hist. I'.rit. 5Ci>n[iliytes, 1S47. ]i. 83. 

 Tlniini'in lliiijn <;i;\v. List nf British Animals, 1X47, [p. 7U. 

 Tlniinrin llniin AI.IIEI;, Cat. /oopli. Nnrthumb., 1X57, ]i. 1'7. 

 Tlniinrin llnijn A. AHASMX. Xurtli Amer. Acalephse, 1X115, p. 148. 

 Tlniini-in Ilinjn HixrKs, P.ritish Hydndd /impliytes, IxiiS, p. 275. 

 Tlniinrin llnijn Sniri./K, Ni.rdsee Kxpeilitimi, 1X72, p. 1.'!:;. 



Tlniinrin tlniin Su;s, < i. <>., P.idrai; til Kuiid-kaben nm Xiir_'i's Ilydruider, 1X7:!, [i. 18. 

 Tlnnnrin llnijn Mel XTusii, Ann. and Man., *''' ^T-, XIII, "1X74, ji. 214. 

 Tlniinrin llnijn M KKKSI IIKI )\VSK v, Ann. and Maj;., 5th ser., I, 187X, p. :',24. 

 Tlniinrin tlniin \VixTUKK, Fnrtiirnelsr de i Danmark, etc-., 1XSD, p. 251. 

 Tlniinrin tlniin K ii;riii:si' M 1:1;, Xurdisrhe ( Jattiin-jen nnd Arten, 1XX4, p. IS. 



Thninrin llnijn MARKTANNER-TuSNERETSCHER, Ilvdrniden des k. k. luitiirliisl. Hotmuscums, 1890, p. 237. 

 Tlininrin tlnijn DuiKsrn, Tt-ktnnisclie Stndien, 1S!H), p. 207. 

 Tlniinrin l/nijn LEVINSKN. Mednser. Ctrnnpli. irer ; Hydrnider, 1X112, p. 52. 

 Tlmjnrin tlmjn LICVIXSK.X, Vid. I'db. "Ilanrhs" Tnu'ter, IX'.I.",, p. :i71. 

 Tlniinrin llniin CKUVIOKII, Ann. and Mat;., l>th Ser., XVI, 1X115, p. 2til. 

 Tlniinrin tlinja BONXKVIK, Xurwe^ian North Atlantic Kxpedition, IS'.Hi, p. x:;. 

 Tlniinrin llnijn HAKUITT, American Naturalist, 11101, p. 392. 

 Tlniinrin tlnijn Nrrnxii, Hydroids IP!' the Wimds Hide Region, 190], [p. :'>ii4. 

 Tlniinrin tlnijn \V niTKAVEs, Catalogue Marine Invert, eastern Canada, liml. p. 2ii. 

 Tlmjnrin llnijn S.KMI MISMIX, liidrai; til knndsk. islandske Hydroider, 111112, p. H5. 



Trophosomt . ( 'ninny xtinctlnu'.s attaiuiiiL;- ;t hci^'lit of a foot or more. Main s 

 rig-id, slender, divided proximally into ohscnrc internodes, cadi of which hears the stump of a 

 liniiu'Ii. Brandies affanu'cd in a spirul around the stem, from which they project at nearly a ri^ht 

 angle, dichotomously branching several times so that each forms a llalidlatc structure with the 

 upper side eonciive. Conjointly the lirandies and hranchlets form a tyj)ical "bottle-brush" 

 structure. Hydrothecse subalternate, closely approximated, almost entirely immcrsc<l in the 

 hydrocaulus; aperture a flattened oval without conspicuous teeth and opening vertically. 

 Operculum a single ahcaulinc llap. 



Gonosome.Gona.ngi& liorne on the upper sides of the* branches, oblong o\-ate with a round 

 aperture, short lint distinct collar, and no lateral spines. 



I >ixl I'ilnitinii. One of the common species in comparatively shallow water on lioth sides of 

 the North Atlantic. New Kngland coast (Nutting); Mingan Island- ( A. Aga-^ixi: I'.ering Straits 

 (Stimpson); (itilfof St. Lawrence (Whiteavcs): Greenland (Levinsen); Iceland (Ssemundsson) ; 

 Norway (S:irs); British coasts (Hincks); Mediterranean (Pallas); AHmlroxx Station L''J.">*i. lat. N. 

 4n- 3S' Mil", long. W. lilt _".'. :!u fathoms: .!/////-.. Station L's4:!. lat. N. .V, .M',', long. W. ir,:, 

 r.<;' t5", 4:. fathoms: .l//^/v.v Station ll.'i.'.s. lat. N. :; 58', long. W. 17u 09', i'.". fathoms. 



This is one of the oldest and liest known of the Sertularida 1 , and one of the very few that 

 have not been bandied about between genera for the last half century. It has a peculiarly rigid 

 habit that is characteristic of no other hydroid. 



5125 IT 2-04 - 5 



