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Las diagrammas suivants illustrent la mtthoda. 1 2 3 1 2 3 4 5 6 MICROCOPY RESOLUTION TEST CHART lANSI ond ISO TEST CHART No 2l ^ rJgPUED IIVMGE '653 Eost Mam Sfree* Rcchesler, N?i« fom U609 \^'6) 482 - 0300 - Phone (^16) 288- 5983 - Fa» REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME VII: CRUSTACEA PART T: FRESHWATER COPEPODA By (.:. UWIGHT MARSH SOUTHERN PARTY, 1913-16 8 1913 '■21; V . (>07 pt . J Of TAWA ; ,lf LABROQUERiE TACHP. fKl.TKI- 7 . VJiK KING'S MOST EXCEI.l.ENl MAJEiiy I-!i>-it April :i, 192C Report of the Canadiiin Arctic Expediti:>n. 1913-18. \<)l I Ml. \Ii: (.Rl. Si \<.r.\ I'lri \ IVirl <•: i';iil l>. I 'an r I'.irl r. I'^iit C I'lr, II: ri:ri I i'.irt. ,1 l':irt,. Iv I'jtrl (.. I'ln \1 (;rM.\! ■i:\. ■ w. I'. 'i- I' i. !(<■■ n. ,\Ml'illi'()!.'>L i'.-. '"I.ivii.. i.. <;„..'.'-.iiv.r l'A\ I' i;'.)|/.\ I'A l.rnli .1 C,,!,. I'U l'll\ l.l.ur;'I)\. \'-\ Ir: - J.;, i (■|,\l-'( < I ];,'•.. |-> » l>:.K..\ .lii,!:i\ i'Ki,s!r.v.\i'i;i; <(>i'i n 'Ua. r-. r, inixi.' m i-h ; M \I;IM. (•Ii!']:i'iil>\. \•.^ \!!,. :r V, lil ■; I'MlASIli' < ii!';.l'i)!) \ I'.'. <'lMrl— I; Uil-.i: (•|i:i;li'i;i'iA. !'•• II II I'll-!.', /' i<'i pill ai "III . / ' ;'lf]iiIUit.>ili •■ . l^sHi'it i:>Jii . In jiri piritti'in }, J jvi ynriih'^ii ■ . . , /). |^n.^.^j. I •' nri iitrntiiih '. /,, ,,.-,.-. . I /ri /'J(i>'). /■ pri imrntiiiii '<. t)OU' ^^ LibRAKy quGCN's UNiveusiiy AT RiNQSXrON kiNQSTON ONTARIO CANADA REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME VII: CRUSTACEA PART J: FRESHWATER COPEPODA Bv C IIWIGHT MARSH SOUTHERN PARTY. 1913-16 OTTAWA J. >lc LABROgUERIE ''Al Hi PRINTER TO THE KING'S MOST EXCELi-fc 19^0 TAJEbfV 6gi)MI -I i^. Ap. IVSO Tlu' Krt'sh WiiUT (:o|H'p<»dii ,„r U,|.-l :. „.«i r.m. ula.l. i... l-iw,...,.- .•„ll,.,ti..i,s 1,m. I..... nm.l-. I n|H'p.Mla lu. .■ |,...n ....ll.Mt.Ml 11. I.cIm.mI, (in.M.lMi.l, N.vM..u:,.llMn.l. AIm-L., an.l l,-.k.> m i - „r..vi...M' ..I' SM.ki.t.li.WMi., I.iit 111" i.'i£i..ii n.Mlli ut S;iskai.l..«Mi. i- pri.'li.'M y ;,,„.M.I..iv.l M.I:.rM..i.t.MH..slr;.c:iMr.M<,...'.ni.'.l lflli^:.^.Mlll..•.l,a-l^uv•lM•t•Mll\ I,,,,,, il.at «!•' '..' ntrci.t ..I ll..' i.<' "f tl..- ulM.ia! |..ii...|, llt.-r.' «a- u lumri.ti-... ,.| the Mi..i.« il.hiptiMl tc. til.' <■ lltioli- of iiM Wl.trr. W.' .■.I1...1M I. . A I ■! '.. ..f •■■t t I I t-it till-l ..M,.'.'t I.. .■ . - far its N.irth Ain.ii.a i> .■..ii.'.'rii.'.l. tli.' iM..r.' priimiivf t..ii..- ,„ the •iirtf siil.-.rrli,. iv«i..i.s. Tl..v-f forms ti.mlit <■..!. iiiiu.' Iiaili-r v.i,tl, .,m, /.Mtr.i.l.m. w..„i.l ...•,m wl.i.l, mitfl.t ns.tlt it. tl... l..rt..at...i. ..f iw;w sp....... Iliat \n< ha< a.^-ual n .„nv.l in North Am. ri.u i> vty pn.l.al.if, a-* 1.,.-. Immi, ii.,li,at..| ,.i Mat.).. Pl(»7 „„ ;iS» aii.l f..ll..wii.n. Tli.nfoiv ...H.-'tioii- in.m an iiii.Aplor.;.! nm..i. • ,;..','„,,,,„,,.„ p.„.t .,f tl..' .•..i.ti....,t atv ..f parti.Mllar ml..r.>l . a... it .> 1.. I-.' ,,. ,,1 ii.at fmlli.'r .■.,n.rli..i,s .•at. Im- tua.!- l-tl, in tl... Atvtir a.H m tli.^ vr^u.u i.nin.'.liat.'lv south, of whi.O. pra.-li.'allv n..tl.i.m is known. . ,. , ,, \il th.; M..-.Mm.-ns «.■..- .M.U. . .,.,1 |,v yh Knts ,I..hans,.n, naturalist .... ilu' ,.M,,..liti..n. in various lauoons. poiuls. an.J lak.'s alonu ih;' Ar.-ti<- .'oasl ; .■>- ,w ..■.iallvat th.'tw.. wint.rli.a.l.|.iaii.>-or .1..' .-xp.'.lition. < atn.-'t. .ay, Ai:.ska. an.l Dolphi- an.l liiion strait, Cana^la. At th.- oth.-r plac.'s only ^hortor viMt . wen- madr m tlio summi-r time. ncniis I.imnocalanus. I.imnocalanus johanscni, n. sp. Plate I, 1 igs. 1-8. '11..' first sppm.Mit of Ih.^ .-.-phalnthorax is n.'arly one-half th.' l.'i.cth of tl..; ,.,.,,lialotli..rax. Th.- front is arm.'.l with two proj.'cti.ms. 1 h.- last .•.•plial..^ ,|,;,ra..i,' s..K,„,.„t ,s r..ut..l.Ml on th.- si.l.'s an.l .-a.-h si. .■ is arim-.l with a small ,,,in... whi.'h mav ho sharp, as in I'l. I, tin. I. or l.l.mt.'.l, ;.s in PI. 1. fiL'. -. ' n,,. r,l,.lon;.'n ..f tl..' f.M.ial.-. PI. I, htf. :!. ronsists ..t thr..' ^.^ni.'nl- ..• liist s.'Kni.'nt is som.'what .xpan.l.'.l lat.'.allv an.l is ahoi.t twi.v as h.nii a> th.. M.,...n,l; th.. thinl s.'mn..nt is slightly lonn.'r than tli<- s.....,n.l. 11..- I'ran.h.'.s oi il,.. f.nva an' thro.- tini.s as lone as wi.l.' ami an- aho.it half at:ain as lon^ as th • lliir.l -mm'nt: th.'y ar,' .iliat.-.l .... ih.-ir int..rnal maiiims. ..iii.l hav.. tli.' typ...al uii.at.ii.. of s(.ta.. ai iiia. .11. 01 sii.i . f 1 I ii .;,. . Th.^ male nl..loni<.... PI. I, ti-. I, ..onsists of hvo s..m...'nts. ..f whi.-l. ih.' ti st „,,,,„ .„,,, ,,ho..t ...pial in l.'n«th: tl... fourth ••.ml fifth ,.,r. som-'what >hort..r ,,„,1 aho.it .'.,.ial to oa.'h other. Th.- l-'n^th ..f th.- furcal hran.'h.'s is aho.it thr.... an.l on'-half ti.n.'s the .r.'a.lth. an.l al.o.it cpials th,' tw,. pn......lmc sociiicnts. Tho fiin-a' are .'ili cl on the internal marnins. The antenna- of the fen. • when refleN.'.l reaeh th.' s.'...,n.l al..lominal s.'j:- ment. The eephalothonirie nppemianes of the female are hk.. Ilios.. ol /.. 4j Cnviiilinii Arctic Expedition, 1913-18 wiururus. PI. 1, tic..-), sliows the first foot, ami PI. I, fic- •"' shows the foiiilli fool PI I fill. 7 sliows the fifth fool of thr fomalo. Th.' l.'ft iiii'lc fifth foot, shown ill PI. 1, fijt. S, is liko that of L. mnrriini^ ■j-ho oxopodito of the ritilit malo fifth foot consists of three soRmoiits; tho sooond scmiiont has the .•ustomarv spinous i)iolongatioii from tho iiitior distal antjl.' :nida hook-like spin.- on the outer .iistal annl.'. The thinl sccmont. situate, iu-^t within the .lUt.T spin.', is one-thir.l to ..ne-halt th.' wi.lth of the seron.l <.'mn.'nt is .linitat.'. .'urv.'.! t.iwards the inn.'r iiiarcm of the f.xit. pomte.l at the .'xtr.'niity, and l.ears upon its .iorsal surfare a eurve.l spine. It is .listmetl.v M'parated from th.' s.'cond scum. 'lit l>y a joint. Kverace leimtli ex.'hisive of fuiral setu". tVmales 2.09 mm., males 2 (> mm. This speeies was found .mlv in the .'olL-etioiis nia.le at ( 'ollinsoii point, M'lsk'in \rctie coast, Oct.iher 10. I'.ti:?, as a linin.'ti.' I'..rm under 10 inches of ic.' in a pon.i I tVet .leep ..n th.' ..lastal tiin.lra. It is to I..' presumed that more ex- tensive collections niav show a wi.l.' distriliuti.m in the northern waters. [ im>i,>rnI.l .inly with tine .'iha on the inner bonier aii.l iK.t c.)vere.l with small spines or .-.larse hairs as in the former specie.s. iMHir spe.'ies of t.inninailanux have been .lescribe.l, m(icrurn.'< Sars, shi.ti.-i.s- Popp.' .«,(r.s(/ Dailav, ami (iriinnhlil ( luerne. Siiinisix ami ■■mnhlii tlie stnieture .)f ih.' male fifth fc.'t is almost th.' sani.' and in both th.' tliir.l s.'tim.'nt ..f th.' richt .'xopo.lite is indi.at.'.l by a small tuber.'le llowinK .lescripti.in is made. Eurytemora canadensis, n sp. I'Iril.' I, tins. '.l-f-'. riiili- 11, tiKS. t, ■_', 1, nw\ 7. Kkmmk TIk' .•.•phal.i-th.'iax is ov.tl in outlin.', the jir.'atest width beini; forwar.l ..f th.' mi.Ml.'. I'lie last s.'Km.'iil ext.'ii.ls ba.-kwanl somewhat ..n th.' si.les of th.' first ab.h.miiiMl se^iiienl. but is not imi.lu.'.'.l laterally; the ..liter bonier of this .<.-j:m.'nt is arm.'.l with a f.'W minute hairs. The outline ot the .•ephalothorax is shown in PI. I, fin. 9. aii.l th.' .niter bonl.'r of the I'*;'* /<^f "7" in PI 1 fij: 12 The first segment of the female abdomen, shown in I 1. I, ng. 11, is somewhat expan.l.'.l lat.'rallv, beiiiR about a thinl wid.'r in th.' mi.ldlo than at the eii.ls. The first aii.l thinl s.'sim.'iits an' of about th.' same lenttth, an.l are one an.l on.'-haif tim.'s the l.'iifrth of the secon.i. The furcal rami are slemler, iibr.iit .v|ii:.l in lenirth to the first two ab.lominal setrin.'nts, and are ciliate on both inner an.! outer iiiMitins. ex.'.'pt on that part of the .mier malum .li.sla.l of the lateral liiiws tilt' t'liica ciilMiircd. The aiilfiiiia- liavi' the tyi)ical stnictuic of tlu' fivnws and cxIcrMl nearly (tr (luitc lo tlic fourth (cphalotlioracic scfrinfiit. Tin- structure of the swiniininn f<'i't is typical. PI. I. fisj. HI shows the fourth foot. It is somewhat inter<"stinc that in the case (>f the mclivitlual from which this was drawn the companion fourth foot had five seta' on the terminal scfimeiil of the endopodite instead of the regular numl)er, six. Tlie second senment of the fifth foot has a seta ;il)oul midway of ils outer mariiin. The third segment is ahout one and a half times as Inutc as the first and Kears a lont;: s])ine at aiiout midway of its outer border and another at its outer di-tal aii(jl(': the inner (li>tal ant;le is proloniied into an unuuiform process, which projects at an aniile uf forty-live di'i;rees with the axis of the segment: the distal border of this process is armed with a variable number of tei'th. as many as eleven having lieen counted. Tin' fourth sefrmcit is one-hali as loiij!; as tlie third and bear- a spine at it> inmr di-lal allele .■iiid a lont: terminal spin,.. ri. 11. fifi. 2 shows the fifth foot. .M.\l.K. -The form of the nude ccphalothorax is like that of the female, but i> somewhat narrower ami more elliptical than oval in outline. The cepiialo- thoracic appendafjes, with the exception of the fifth feet. an> tlii-e typical of the c<'iius. The abdomen, IM. 11. tin. 4, '^ slenth'r, the segment- lieinn about etpial to each other in length. The furcal rami e(plal in length the three lire- ceding segments: the inner margin is ciliate ant a description of it. , . . Granting that the immature individuals were jimbably E. nindtlrnsis, il appears, from the fact that most of those collections were made earlier than this one of September 2;? that this species matures in the late fall. Heterocope septentrionalis Juday and Muttkowski. Pliiu- II, figs. :i, .'-., 0, .s-13. This species was described l>y Juday and Muttkowski in litlo. pji. 27 M). fig. 4, A, H, ('. 1). K. ;in•' *'- ^K- *'• -^ =""' '^' f*"'"" >'>:»*'"'ial collected at' St. Paul island. Alaska, and. as staled by them, undoubtedly differs from the species pri'viously described. The forms roUecte. The external spines ol the right exopoditeof the second foot are distorted, as in the figure of .luday and Muttkowski. This is shown in PI. II, fig. 0. Thi" sjune (if the first segment of the right exopodiie is shown in Pi. II, fig. K>. The fiflh feel of tlie male, sliown ti'tMsft— .' tlj Viiiiailiiin Aidic ExiivilUinn, IHl.i-lS ill I'l. II, fin. S, (litter Iroin the prccciliii): ilcsciipi loii (iiily in I In- Miiiifwliat jtrcMtiT icii(£tii of the iij:lit foot. Tliis spcrics was collected in poiuls on Ilerscliel island. Yukon Territory, Auniist 14, i!tl4. and ajjain .July 'M). lltlti. (ienus Diaptomus. Diaptomus bacillifer KoUiei. rinlc 111. tigv l-.V I'p to tlie ])re>eiit time no siiecies of Didiitoiiiic found on llie .\nieric;tn Kintinent lias heen eon>idered identical with those of I'^lirope or .\sia. Tiiere- fore a fjood deal of care wa> used to make certain that the ide!itilicalioii of this species was correct. The deterniinalioii is liaM'd on the original description of Kolliel. 1SS4, siippleinenled liy the later descriptions, especially llio>e of Sars and Schmeil. Kiilliel nave as the leiinlh 1 .") to 2 nun. Sars. liM):5, stat(-s that the female are I S mm. and the iiiale> 1.4 mm. l)e ( "lUerue and Richard. 1SS9. make the leiidth frtsm 1 mm. to 1..") mm O/ the sp;'cim-ns of these collections, one M't of four females averaged l.:51 mm. .Vnothcr set of five females avera(ji'oul the iniildle of the p'ldtal setrnient. hut Sars, ISttX. says that the antenme reach the end of the first alidominal sesimeiit. Th(> last cephalothoracic segment is produced hackward on the sides, and ea( h wiiiK is armed with two minute spines, a- .-.liowii in PI. Ill, tin- 1. Thealidomeii of the female, shown in PI. III. fiji. 2. in its tjeneral form corresponds very closely to the fitiure in Sars llto;}. The first scKiuent is longer than the remainder of the ahdonien incliidiiiM: ides. deiideilly dilated in front, and hears a small acute spine on each side, these >pines ordinarily heinjr slichtly turned backward. The second segment of the ahdonien. in our specimens, was about one-half the length of the third; thesi^ proportions ■'* :> ""'"l^ spine on the liisl basal s(>ninent. and a delicate si^ta on the- second segment. The exopodite is tliree- seniiieiited. The second sennnMit bears a spine on its outer distal aiinle. and the third segment is terminated by two sfiines. the inner beinn somewhat the s inter. The eiidopodili' is one-senmented in our specimens. In the figures of K()lbel, 1SS4, and Sars, 1008, it is two-senmented. In the figure of DeCluerne and Hichard it is one-segmented. Apjiarently the endoiiodite may be either one or two segmented. The length of the endopodite is stated by Schmeil, IS't:}, to be variable. Sars, 1S08. states that it is less than one-half of the first .senment of the exoiiodite. and in l!t():{ he says th.it it is much shorter than that segment. In our specimens it was .about one-half the length of the senmerit. The appendaue of the antepenultimate segment of the rinht antenna of the male is strainlit and about eiiuals in lennth the |KMiultiniate segment. This I'll ■•ih Willi /■ ' iijii jiiiilii Is i> >li(i\\n 111 ri. III. fin. .'>. ScliiiU'il, IMi:{. Ii;i> .-Imuii ihiil llicii' iiiiiy tii' mucli v;iii:iti<>ii ill tlic Iciifjtii i)t' tlii^ :ipi)eiiil:int'. 'I'lic iiiiilc fifth foot is shown in I'l. lll.fid. \. 'I'iic scroiiil Ii;i-mI -runicnt ol the rijriil foot lias the siimll lateral seta near the distal end of the Mumciit : from alxillt midway of the inner liorder jnojeets a hyaline lamella, whieii extends over the eential third of tiie setinient. The first sejj; iil of the riitlit exopoilite is shaiply produced at its oiiti liistal allele. The second segment is not (|iiite twice as loiifi as its nri"itest width, '{'he lateral s|)ine is straifili!. acute, ni'arl\ as lonn as the sejjment, and |)laced just heyond the middle. The terminal lioi.k is sickle-shaped and slender. Some authors say that there is a projection or -pine on the dorsal surface of the second sejiinent of the exojiodilc; this is siiow n l>y Kolliel, hut not hy Sars. l!M»:i. Schmeil, ISO!}. >ays th;it it is variahle, iieinu sometimes present and sometimo ahsent. The second liasal seninenl of the left fifth foot of the male has tiie small lateral hair well towards the end of the >ei!;ment. .\t ahout the middle of the inner holder is a small hyaline lamell.i, and from the inner distal allele extends distally a ciiticillar. tooth-like projeition. '{"he leriiiinal sejiiiient of the left foot has a dicitiform process and a Curved -.pine. The endopodites are indistinctly two-sejimenteil. Kolhel and Sars. MtO;?. >a\ that the endopodites are one-sesimeiited. hut DeCuerne and l{i( hard. INS'.), in their fifiiire. make them indistinctly two-seirniented. Detiuerne and Hichanl state that the left enilopodite of the male fifth foot is not separated hy a joiiii. ;ind the figure of Sars, I'.IDH, >hows the same condition. Kolliel. houevcr. figure- .■1 joint, as does Sars. iSitS. It is in the structure of the second lias.-d setrments of the male fifth feci that we find the characteristics which are most diasiiioslic dl this species of Diiiiitnmns. They wer<' not fiirureil full\- liy Kiilhel, hut tlie\ appear in the laid' authors with a rather surprisiiifj lack of variahilily. This lack of v.-iriahility i- the more surprising because of the marked reseiiil>laiic<' in the iivneral structure of the male fifth feet in 1). hac'llifir Kolliel. 1). l:,ili,nis Dadav. I), iiciiflliilxitiis Sars, ]). H'iirzijsl.-li liichard. I), hi mis ISnidy. and D.sinnijs Haird, as defined hy Pilchard. I), hiirillifi r has been found in Scotland, .N'orway. nian\' p'.-ice- iii the Alp-, .\sia Minor, Syria, the Caucasus. India, Central .\sia. Silieria. and in inlands north of Silieria. It is a stenothermal cold-water form, and i- fouml in the far north in liodies of water near the sea level, and farther -oiith in lakes in ihe hiiiher niountains. Ill the collections of the ( 'anadiaii .\rctic Kxpeditioii it wa-- foiiinl only in the gathering made on Octolier ti, IIU."), from a pond one font deep •, hundred feet ahove sea level on a ridjie at Bernard harlioiir. Some Diiiptiinn collected on St. Paul island, .\lask,i, liy Professoi' Parker, weii> sent to the author some time ago. ami proved to lie of this species. .Vpparently then, it encircles the world in the general neiglihoiirhood of the .\rctic ciicle. and proliahly will he found ill many of the lio(iies of water in northern ( 'anada. It seems >trange 'lat it has not appeared in the collections which ha\-e hccn made in Iceland .and ( ireenland. J), hitrlllifi r has the (list ini't ion of h.aving a wider disi riliiil ion than anv other species of the genus. Diaptomus arcticus, n -p. I'latc III. lids (1-U ,■111.1 l:i. This large and conspicuous species is cloM'ly related to I). sliiisli,i„i . »o c|()>ely ill fact, that it can only lie distingilisheil from that species hy details of the structure of the alidomen and fifth feet. The fir-t ahdoniinal -"gmeiit of 'lie ft-iiiaK- is dilate.l lateral!;, anil in frwiit and heai-s on either siih' a liliint spine. This is shown from the side in PI. Ill, fig. t>. The antenna' eiiiial in length the cephalothorax. In the fifth foot, Sj ('(iiiiiiliini Aiiiic KjCjX'ililion, UK-i-lH ^liowii in ri. Ill fi)i. ^. '111- i-piiic of llic first li;is;il scKini-iil is r.ilticr lai'nc The M'coiid liasal sctimciit liciiis tlic custotiiaiy liitcral seta. The ex(i|)(i(lit(" cdnsi-ts of llirrc sc(riiiciits. The srcoiid scjjmciif l)cai's a small spine at its outer (lisial aiiule: the liook is of the oiilinaiy form. The third senineirt. which is distimtly separated fri:ni the sec loiiu as the tir~t >eirnieiit of the expodile. and is terminated with two rather lonji >pine-. 1 lie antcpeniiitiniate seument of the rifiht male antenna, shown in PI. Ill liH 7. hears a nearlv >traiLdil append.ine, which is as lonit as the pennltimale s.'timenl. In ihe male fifth foot. I'l. III. fiy:. •••, the spines of the first ha-^alscL'- nienls are small. The se( onil hasal s(-nnienl of tlie right foot is ahoiit etnial m lenjilh and breadth: it hears ;i minute iiyaline cuticular api)endai:e near its inner pioximal angle, aid near the inner distal aiifile a pronounced process which is serrate on its <>Mter border. This is shown from the ventral side, enlarced, in I'l. III. fig. i:<. The endopodites are two .>eginented. The left foot reaclio nearly to the end of the second M'gment of the exopodile of the right foot. Average length: females :{.(IS mm., males 'I'l mm. This was found in a collection from a pond abdmnen and of the first basal segini'iits of the fifth feet and the twu-segmcnted eiidop )dile- of the fifth feel. It is in the fifth feel of the male that the species distinction is made. The greater length of Ihe left fool and the armature of the second basal segmi'iit of tlie right foot warrant us in separating />. (irclicii-s from filioxliinif. .Material ol /). .ihoxlioHi- has been examineil from Yellowstone lake, from Corona, Irwin, and I'ike's peak, Colorado, from Xioche valley in the W.asatch mountains. I'tah and Lake .McDonald, St. Paul's island, Alaska. In none of this mat(Mial is shown the peculiar armature of the second basal segment o'' he male right fifth fotn of I), iircliruf: it may be noted, however, that in the specimens from Lak" McDonald and Nioelie valley there is, near the inner proximal angle . ininii a variety of l>. shoslwiic. but until it is clearly shown that there are connecting foni's, it would seem well to retain tlu' species name. For the sake of comiiarison. ihe male fifth foot of I), irardi, from St. Paul island material, is shown in PI. III. fig. ID. Itcliffers from D. .-^hvlioii' in having a distinct hyaline process near the proximal inner angle of the .second basal segment, and iii not having tiie spine of the dorsal surface of flu- s( c )nd segment of the right exopodite, and it has no trace of the pronounced jjroces^ of the inner distal angle of the second basal segment which is seen in D. arcticu^. Genus Cyclops. Cyclops niagnus, n. sj). Plate III, figs. 11, 12 and U. Plate IV, ligs. 1 and ,">. This corresponds, in general structure, to olliers of the viridis type. The antenna' of the female equal in length the first segment of the cephalothorax. The abdomen is shown in PI. 111. tig. 11, and the fmea enlarged, in PI. Ill, fig. II. The furca is fin(>ly ciliate on its inner border. The lateral seta is situated at The furca is three-fourths of the length furca. Of the terminal seta> the outer is lw< !• rixh iriiter Co/iijiofhi yj lliirds tli<' length of tin- fiircii, ami tlio iiiticr ncaily as loriti a> the furca. Tlio i('c(>|)laculimi si'iiiiiiis is roiivcx on its aiitciior iiiariiin. Tlic s()irio •> arinatiirr of till' terminal scuiiiciits of the cxopoditcs (»f the swinimini? fci't i> icprcsoiitcd by tlic foiiimla 2,:?, .i..i. V\. Ill, fi)i. Il' shows a fourth fool Tin- fii>t si'j£iiiciit of the fifth foot is l)roail; the sccotkI sc(jiiiciit is only slinhtly loiidi r than l)ida(l, lint varies somewhat in its relative dimi'iisions; it is armeil with a seta and a spine. 'J'his si)ine may he jointed, as in I'i. I\'. fiij. I . or not sep.arated from tlie segment, as in IM. IV', tin. •">• Length of female, exclusive of fureal set:e, 1 S.") mm. to 2. I mm. This was found in collections from Collinsou point, .Maska. made .lune |:i I'.Ul. Mernanl harliour, .lune IS, 1<)I."; Cape Hatiiurst. Xorthwest Territories ( anada, .hdv 2(>, Idlti; Ciianlrv island, Dolphin and rnion strait, ('anad.i. June 17, 1917. Cyclops americanus .Mar not intended to enter into ,■! detaili'd ;!iscussion of rimli.t and the allied species. I)ut a brii'f statement should lie made to justify cillinji nimriciiiius ;i s|)ecies rather than a varii'ty. and to >liow the necessity of .nldniii another to the lonu list of names which have been applii'd to these forms, Schmeil. IS!(2 .and IS'.IS, brinjis all forms of this type under riridi^. V.. M. Korbes, |S'.)7. in discussint; .Vnierican species. re<'oj;nii!es the species ririilis. which includes ('.inijcus llerrick. with varieties hraisiiiiKisis Ilerrick. .and ins, rhi" Forbes Marsh, iS'tiS. recognizes foiu- varieties, iiificus Herrick. hrd-isjnnnsiis Ilerrick. oiircKs Herrick, and itiin rinnnis Marsh. Aiinrinniiis M;ir~h is the IksicIiis described by K. H. Forbes, and has the ritjht of priority, as the original publica- tion of inscvlus was in such form that the species could not be recofinizicl. ( 'hambers. 1012, from a study of the chromosomes, concluded th.at (' . limhs. <'. iiiiifrlciinwi. ('. /xircii!', and ('. I)r(ri''iiiiii>siis should be considered a- disljncl. species. The recent work of the author has leaw. II, liltli ft, ~~ I ' ' ' - ■ - --- -- f. n'riiiis • ni.-irni'i I'niicMVc ('ili;ilcii ' '_',:{, :i, :i .Nul ^cpnnilcil liy joint, ( . uiiKrininiin. .iKirfiili ciiiivcx, , .Not ciliMli'il, . :;, I. 1, I .-"iiiMraii'il liy jiiiiit. ('. imrcHii jiiar({iii CDiivcx Net ciliulccl. J, :>,:>, :> ,:iralr(l by j.iiiit, ('. Iircvisiiii{,■.,, ,.f llic lillll t'dot ;illtl "f tlic lTCcpt;iiMlllllll MMIIIMIS. 1 , i; "•"■',',',,",;; ;„■ ,1,.- IV,.- of r. „■„.(,,•. <;. ..»;.r,., - .. . ..■ :;"■■;,;;,.;:'>;,;, 7 the rcccplaiMlliilii >iMiiiiil> !)> tlli't.iMUl .niunii. . louml t.) l.f (■lK(nirt.'ii>li<' of the fuMcr waters. Cyclops strenuus li-dui. IMmIc IV, ligs. J, ;'.. iinil 7. ,...., ..;!:'•.;;;,; !.xp...iiuun. ., ...s r„un.i ..rap. '^^;: --!,, ;;i^.^:; Tm-!. of Uu- p.vs..nt author tlu-M> nanu.s should he '-"''Y'''''' ',,;,"."' ;',;,,,,,„,, ,., The sp.MMiHe„s .if this <.xp.Mht.on (•..rrcsp..ii.l v.mx closelN , n ■ " '." !^ . . 1 ilw„- l.w.llti,.< I'l IV fin 2, s hows tlic atiilouH'ii. 1 I. I \ . tin. -i. ="^*''i'hv::ii:;;/;:;!.i;ao^.::^.;.i;;n:d!:;rn,sof, ...a, .....„...,,, i,Mhe^^;;^n;":'n' TI.. eutua.hu- ri.l«.M,f the rurea was Ho,u,m.-..^^^^ Mureovr, the inner nuu^.n of the furea uas ..hated .'" -;"«^ '.;'', I'' 'J ■; ,.,t in ..tiers The ireei.ta.ailuin seininis is ..f the typieal eir. il.u tollii. >ai. • s, , le t'h at tlu' eU >aeks are oval in form, while in th.' h-zun- of >eh,ne. , \^i. Uiev aiv Hhp'lah In the speei.nens .>f this ..xpe.lition th.-y weiv -phen.'al. Fnshiidltr f '((/<(■/)' ..(I II J Till' f'jiyilKli l:iki' -|>.'(iiiiciis liiiil vplii'iiciil CUH sii'ks. It limy lie iiiitcd lliMl tliir- is :ils(i tiiicdl r. ((/)// .v.M. ////(/ Siii>. Ill nil llic iiiilic> III' till' UriliillMl Mrii ''11'^ "' 'Ik' ixii|)n(lil('.«i of llic ^willllnillir Ifrl \\:i~ :{. I, :{. :{. The I'fiiiiik's fniiii McniMid liiirlioiir which were iiu'Msiiicd x.incd in Iciiuili. ('\i'hl-ivc of the furcMl sctii-, fioiii I til'.') iniii. to I !> iiilii.. thus iio» . AllhoilKh '■. .■iM. and Northern Africa, it had not I n noted on the American coinineiit until the pulilication l.y .Maisii in l!li'-'. pp. 2V.I 2.'):<, where it is .-lateil that it had lieen found in collections made hy 1 )r. Kvermanii in Kock pond. Axtoii. N.V. Miehni. I!tll, and Stephenseii. nti:{, p. 7(>. reported it in tlieen- laiei. The author has ai.so found it in a collection in the Cnited States Nalion.ai .Mu-euiii lalielled a> from '•small, clear lake northern New York. From New ^(irk Mate .Mu>euin. throiitch \\ . H. \ai: Name." He has als(» found it in col- lections from ('ayuu.'i lake. N.V., and in the contents of ii>li stomach> collected in ( (iieida lake. N ^'. .\ revision of some of the notes on ( Ireei, 1;ik<'. W iscon>in, make* it proli.iMe that it is also an iiihal>itaiit of that hody of water. I )oulitle.-.s it is widely di^t riliUled in .\merica. l)Ut is not. iienerally speakinn. found in lartje nuiiil.ers. Cyclops vicinus I'ljanin. Ill a tundra |>oiid at Colliiison point on .lune i:{. l!tl I. were collecicd a liiimlier of specimens of ri/r/o/^v v. hicii were at first called (' . sin iiiiii-<. It was noted, however, ihat while atjreein^j with C slniniKs in all other ways, the .-.pine formula for the lerminal segments of the exopodites of the swimininu feet was 2. .\. :i, :{. This spine formula is true of C.riciiins I'ljanin as de-criiied hy Liliejel;ortJ, I'-'Cl. and Sars, \'M'.i. The other dilTerences as poinlcd out liy these authors, appear to he only variations. Schineil. IS'.»2. say.- that the spine formula of ('. slnniius may he ;{", 4, :i. '.'■. or 2, A. ■\. :i. or -i. -i. -i, '■'>. S( limeil. too. as remarked liefore, has slated that he does not consider tlie spinou^ armature of thi' >wiinlii!iiK feet as>ufficientiy coiL-tant so that it may he considered a diajiiio.-l ic chara(teii>tic of a species. In the author's experience, however, wliile ihere ha> l>een found some variation in this spinous armature, in the colleciion> Irom any «iven li;cality. the lumiher of spines has heeii h>illid practically I'onstanl . Ill all the speciini'!is of tlu^ .■:lr)iiini.i type examined from the Colliiison point ((.Ijection the formula was 2. :?, :{. -i: while in all the specimen^ from (ape Hathiirst an I liernard harhour the formiil.i was '.i. i. '■'>. :5. C. Lolinsis Lillj. anil V . >iiliiiiiti(.< l.illj. have the same spine huiiiula for the >wiiiitiiiiiy: feet as ('. lifiints. and the author c;in see no ^ood reason tor separatiiin the' i from ('. ririniis. Clyclops capillatus Sir:- IMmIc IV, lin^, 1. 11. s-ll. \SiVA. Clirhii:- (■•Ijullillils S;ir>-. p|>, -Ms-'.'. Isvl ■• •• Ilcrriik p. l.'ill. Isil.'i ■• ■• llcrrick ;iii(l 'I'liriicr, p ll."i IVIS •• •• .Shin.'il. p. l.VJ. I'l. .Mil. tin 1 PHll - ■• l.illjclM.iM: P 'it. IM IV. litf-- l-» I'llH •• •' .^;irs. pp i:f-4, I'l. \.\IV This species was first desi r-')cd hy Sars in \Si\.\. and practically all the pilMishod knowledge of the form is in tiie works of Sars and Lilljel.ortj. llcrrick and HerriekaiKl I'lirner siinpl> repui/ii-licd the Latin .1* s( n|)tinii niveii h.\ S,it>. and stated that the species occurred only in Scandinavia. Schineil fiiiures the fifth foot, and, in a few words confirms the identity of the speci.s. 12 J ('(ininliiin Arctic Exiiedition, I!>I.!-IS It li:i> liccii fdiiiid only in Sciiniliniivia. in liodics of water in thi' niutli of SwcdiMi, iinti in lakes north of Kristiania, in Norway. IJiiji-tiortJ stales that it is mostly I'onnd in small liodies oi' water, and is rare. In the colleetioiis ot' the ( anadian -Xrctie Expedition it oeciirred in only one locality, a lake at KoiiKaiievik i('aniden l>ay), .\rctie Alaska, in a KiitheriiiK made .Iiine 2ti, l!tl4. ( Mdy a few individuals were found. The eorres|)ondeiice with the descriptions of Surs and LilljehortJ w.as very close. 'I'he antenna', shown in I'l. IV', fitJ. f>, are <'ompo.sed of twelve segments, and .aixiiit e(|iial in leiicth the first eephalothoracie segment. In the al>ilomen, shown in I'l. IV, fin. 1, the second, third, and fourth segments nearly e<|ual each other in liMinth. ami together are somewhat shorter than the first .segment. Tin- hranchesof the furca, I'l. I\', fi«. II), are five times as lonu as hroad an Urtrro- cope in .America, was by .luday and Mnttkowski in their description ,:f // . s-t iiloilritiiKilis. and it would ajiix-ar that it may be rather witril>uted species ot the penus. DidiiUnmm drcticiin is a new form very closely related to 1). .•ihoslHiiu and D. ward), an(i it will be intorestiiiK to know the; geosraphical limits of the three species. The occurrence of Cijcldp^ strcnxiix on the borders of the .\rctic ocean, with the former records of its presence in lakes in New York, makes it probable that it may be found anywhere in North America Tiorth of the latitude of New York. Fri'uhwuttr Copepoda i:{ ('jlchiliK tiriiiiin is new to AiKfrica, Imi voiy liki-ly will Ix' shown to liiivf tlic smiik' (listi'iiiiitioii its ('. Htnniiux. (iirloiiK rdpillittiis has l)crori' this only lifcri known from Sciindinavia. Takini; the niatt'iial as a ■.tliolc, it is notici'ahle that it hears a striking nsi'tnhlancc to the fauna of tiorthciii iMiropc and Asia, hut tlnit the two fauna' arc not iilontical. Kvcn in the circunipolar rr^rions, tlic cntoinostracaii fauna' >>\ Ihc eastern and western continents are dilTerentiated from eai'h otlier. ■i'hi> i- chu'. doulitless, to the lack of continuity in land surfaces, for, as shown eUewlieie, co|)epods are larnely ilejM'ndent on water carriane for their dislriliution, so that fresh water cope|)ods will he iimiteil m tht ir distrihution to the opportunities olTered I'V contiguous hodies of fresh water. siMMAitv or i.ocAi.riiKs ui- corMii THINS. (AKHAM.KIi FHiiM WKST To KAwT.J Teller. Al:i.-k:i. Kuriilimorii sp, Caiiiiltii l):i.v iKiriin;iiirvik, ( '(■lliii-.m ))hini-iniiK Fischer. ICtll'ljtt'lltlU'lt ftlllllill tl.'ii.'^, -'.. Diiiptniniifi hdrillifrr Kulti. (':iclopn maijiiiis, ii. s]). Ci/rlop.i Ktrcn mix I'ischcr. i.ni:HATi Ki; (ttkd. Hivlim, \ iiK'criz. . Utll. IJic KiitoiiiostrakiMV ilcr I):iiiinark-lApnlitii.ii. .\li-. J'.tl 29)). Ekiuan, 8von. , , , 19()n. ('lailoceren und Copepodeti aiis aiitarklischen uiid subantarktisclieii r>uiiieii)ie- wilssern gesanmiolt von del ;ii liwe.liselieii aiilarktischen I^xpedition HMU r."*:;. Wiss. Krgebn. schwed. Siidi)iilar-Kxp;'d., 15d. .">, J.ief. 4. l'(irl)PB, Krnost B. 1S97. A rontribution to a kno\vle, Art. 2. Ue Cuerne, .Jules, and Rich.ard, Jules. ■H 1S89. llevision des Calanides d'eau duuee. Ileirick, C. L. , . , ■ - At 1SH2. Papers on the Crustacea of the fresh waters of .Minnesota. I. < yelopuiie ot .Minne- sota with notes on other rojiejioda. IDth .Ann. Rep. V,m\. and -Nat. Hi-t. snr. Minn., 221-2.'54. It. I Caniiilinn Arctic Kximlition, I'.H.i-lS |HH(, \ |iii!il ri|Hirl nil llif crii.iliici'ti nf Miimi>wit;i iiifliidihl in (In- «\ ur-> ('!;<' •■■era iiml ('o|ii|Hi, (ircil. .'iml \;ii. lliHt .«iiir .Minn llirrkk, f. I,., iiml Turner, •'. 11. IS'J.'i. Synopiin of tlic Kiitiiiin(slr;ir;i of Miiinf*ip|:i Jml Itcp Sl.iti' /.ikiI of Mmn (Icol. unci Niit Ili!«l Siir. Minn. .Iii'lnv, (' , Htid Miiltkownki, 11. \. i'.tl.'). i:iitoiiii«tr;ifii from St. rmil Maii.l, .\la.-kii. Hull Wis. Nat. lll^t .Sic, Vol. l:i, I.p, Jit :tl. Ko|l,,.|, ('., ISHl. ( 'arcinoloni-sclipfl SitziiiinslitT. Aka.l. iliT \\ Hsniscli. Wiiii, U.|. 'M\. pp '.\\1 '\H\. I.illjt'liorK, Willirlni. I'.MIl. Svnopnis vpccioruni hur ii8i|Ui' in ,'^inria olwrrvalaniiii unicri- <'\clopi- Svi'iixka ' V.t.- Akad. Hamll. It.1. It.'., No I. .Miii-li, ( . Dwittlit I'.HIT. A r('Vi-.iori of tlir North Ainrricaii spcrirs of />(ii/>/ii»iim. Iran- U i» \. ">ii., .\rt^. anil l.citirs. Vol. l.'i. pp. il^l .'iHi. I'.MO. A rr\i-ion of the North .Vnicrica spriii'?- of ri/ifcipji. Trans. Wi-. \rail. .".■>. .Nirs. (I. virsiKl af de indenlaiiilske I'er^kvaiidseopi'poder. I'lirliandliinier i \ idciiskalis- SeUkaliet i ( 'liristiaiiin, pp. J I J Ji'iJ. IVIS. The < 'ladiieira, ''opi'lMida and Oslraeoda of the .I.iiia Kxpeililion \mii .Mus, ZooI. .\eail. Se. St. i'eterslmrK, T. J. pp ifjt :i."iH. l!KK{ .\n aeiount of the erilstaoea of N'oiway. Vol. XX, 4, CopepiMla ( alanoidea. Hl|:( .\n aeeoiiiit of the erustitcea of Norwa.v. Vol. 1, Copepoda. ( 'yilopoida. I'arts 1 and 2. I'.tl."i .\n aeioniit of the eriLstaeea of Norwa.v Vol. li, I'arts :i, \. 5, and li .■sihnieil, (Mill. IVt2. Deiltsthlandd freileheii.lc Su.sswasser-( 'opepoden. I Teil: Cyilopida'. IHlta. ('o|H'poi|en lies Uathikoii-(iel)irKi>M. .\hhanill. d. .Naliirf. ties. Hall,' 1! Hd. pp. 1-1(1. lS(tS Deiltsehlands freiletiei.de Siisswas>ir-( 'opepoi en. Naehlr.i't zil den I imilieii iler Cyelopiden iind ('eiitroi)a)iideii. Stephensen, K. I!*!,}. (iri*Iilaiids Krehsilyr on I'yiiiimonidel (Coiispeeliis ( 'ruslaeeoruin it I'yenoKolii- iloriiin < Iroenlanilia". I It) I'liiuiilmn Arilir H.ri>iililiiifi I'li-ls I'l.AIK I. 1 l.iniiiiHitlnniin jnhniiKi-r.i. IukI segiiicril of fcplmliitliiirux X 'S2'i 1 last st'giiieiit iif ri'plmliithonix X 22;'. ;i ■■ •■ alxlonicn of fomalr X 55 ■J " abil •men of tiiiilr X 55 first swininiiiiK fl ~' (Pin'iit I > iplKilnlliiirax (if fcmulr- X 223 E'lriftftnitrtt aintitlenma, AVrsAu'ii/er ('oih-ihhIii ITj Pi m> I ISj ('(iiiiiiliiin Antic ExiiKlitiun, 1'J13-IS I'l.Mi: 11. 1 ii:. 1 Eiiniii iiiiirn ninnih ;; //./ \ E'li ", II. 1 t) II. I ~ K.u N ll.t 111 II i:; luii-i 111 Iciiiali tiftli t'liot '\\v.\\i- illrmorn ciniiKlen.ii.^, uttiloiiu'ti of inalc . , , ' ' nx'iiix .ti iilintrioiiitli.'i, tcriuiiial si'ijim""! 2.i X -).5 X -).-, X ■IXi X (Ul X ■22-i X no X tiO X 22:( X ■J'j:i X .••j:i X JJ:; mmmmmmmmmm Fr(.shiriili r ( Diicjiiidii 111.1 I'lAII. II. •_>(ll ('„n,ii Arrlir h:.ri»' Diilptiinius III- 1(1 n u i;i It ,//,,-,,■, last wphalolhorarif MW " abdomen of fi'iii:'''' fifth fool of fi'iiial' fifth feet of mall'.. tonuiiialscRmwit'"' •^""'■""^",' '■'■'^' ,, , , , ,„,„. fi'^tXlominal .cgtu-.U of f-'-'alo Irom th. ..W - tennmal sogmenl:^ota„l..mia of malt- fifth foot of femali'.... fifth fret of male , fifth feet of male., ab.lomeii of female ,;-,, ;;r.,eS^::^;5>-l.e..oe,.tofn«htfif,.,f f ma. ('i,W'i;>.-i »»i9n?(s, fiirea of female ■■I, DiiijiUiitiiiA u-iii-i Ciirloiix niiujniis, X ■i'.i X no X ■J2;5 X 22;i X ■."_'H X ■22;i X ll(» X no X »i X 11(1 X 5r> X 110 X •_>-2;i X •j'2;i yrrslniiili r Cniu podn 21 J *^f 22.1 Canndtan Arctic KxpediUov. WIS IS 1-iu. 1 I'L.MK 1\'. Cvc/o//.- (*/(/■<-, tiltli fool with spino jointfl CydniiH Ktraiuux, ;ri)il<)Iiii'!i (if frtuillc " furr;i (if female ( ■ilcltil>-< ni ;"""'"■-■■ iitxlciliien (if feiliiile f'lirloiis jmiijiius. lifth f(M)t, spme n<,{ separaled (■'?/(•/";« '-(ijiiV/df us. liflb f(Ki( Ci/rldl)!' ulrihiiiiK. fifth f("it (■]irht)is oir'Hi't""' fifth foot ,■•• iiiiteniia of female, furca of female, reeeptaoiihim semhii.-! X X X X X X X X X X X ■.'■.•:! 11(1 •J2:i Frislt'Muttr ( iipfpiiiln 23 J I „/ V 1 I \ \ 11 <-v^ I I'lUK IV 4 > \ \ ? A \\ i> \ / 6-^ M I I 1 10 V. \ \ / Frenhwatrr ( o/x 7«>« |...n.l ...i.-andHataat Hcrnard liarl-our. N..rtl,«.-i T.Trit<,ri,.s, .luly 2, 1915. .-,0. 2. Tundra pond »• Konganevik. Camden bay. Ala»kan Arctic Coast, July 4, 1914. Fio. 6908«-3 Report of the Canadian Arctic Expedition, 1913-18. rOMrNTSOF PAKTS IN PREPARATION'. rwt li; Purt \. r»rl A : Part li I'lirt 1 I'urt I) Part I I'urt I' Part ( ; liti'i Part II. I" Part I; Part. I Prtrl K Voliinir .niii-rn Par'y. ){>]■■ !■<. I'li-n I'.irty, I'JI.V-lii. (irnrral liilriMliirllon, .Narrathr, Kti- l!ii I'lliili Ml Vn i-'r.4->a. 7i ,*(j'iM.'nt. I'.ir.ii. Voliimp II: Mammals anil Bird*. lh. Uy Uuilolpli N'artin \nil"r<.in. 'In ;iii:;i.ira(tiini ily U. .M. \nluro in I I'. \. I'l/.TiT In Volumrlll: liMFTts ( olliT'l) >: I I'.y .Iu-stu-1 W. 1 oN.>m I'l'i'-I N('un>t)tt'r 'I 1 lu.Hcct)* llv N'aihn DipliTa. liv < 'li:u(. 'iV. Mi'tamliT Malliipiiiii !. ,in'l .\n'>plura. Hv \ ( i.ii'.iiiM.tii, Uy.l. M. .Siviiitip. II. r. l-ail, Ilrtui|it.T;i. Hv )'.. p. V:n Du/i-" / livnicTi.'pt.'r.i anli'laiit ( ■all.H. hy \li K. r.Tt.T I. 'It. i//. I 'rili.iptir I. Uy i; M. WalkiT. t ;.*rHT 1 1 * ■( !*<'rvati"n!» "n 1 M.-*.'i-t T if.' in thi- A r't i Ilirn^iii'i IJviir and I. il \t i" i 'li /<••!• U. H.ilv.T, (• K. I Vrni, an.l (). U. i". .N'iuti.11 W. I.t-nu, anl I. D. Shprm.iri. Ir, j-i.'.j Ml illivray, ' 'halloa T. Unit'.', N.itliaii llank», a;i 1 Itah'i P\ 1 rita J()li»n«.Ti. '/■ Part \: rrrs)tu:i''-r Ahnw an.l I Part H: Mann.. .Mu'U'. Hv 1'". < PnrtC; t •.m.ri I'.v lolm Di-arni'.^n. Pan II: I.i.h.Ti. Ity K. I . Mt-rriH. Part !■:. M.,.<^,M. I-.>- It. S. Wiliiaiu.i Volumr IV: Rotsny. HvClmr.. .•Hi.-.vatrr Dia't) IlitH. 'In pr, .ri.ir-i.'i..i iH. In /irr ;Mr'i.')'»H :. /t prtp'tntti"ni. In pr'-jt'iT in"tt). I W. I,().va. In r I iiirif.. •! I'arf A ; Parti P.: Part A . Part 11; Part A; Part P; PartC: Part I) Pari K. I'art 1- ; Part ( '■ Part II Parti: Part. I: ."art K Pari I. Part M Part A: Part I!: Parte: Part 1) Part i;. Part 1 : Part II Parti: Pari A I'art P. I'art ( ' Part I) Part 1' Part P: Part C. Part II Part I : Part .1: Part K Part M Volumr V: itntaii). Hv .I.iTi.,-i M M I'.) 111. ill )tii.Ti )H .\rrtif.' V'i.'i4i't;iii.ni. Hv I'm I'»lui;i.i"ti In ti Vuiumr VI: Kislieii, Tualvatps, Ktc. r. .IiilianHTi. In ;irf/«irij/i..n '. Ilunl.^iiian. i/i yin/iirc/i m .. V«liini<.- VII: t'riKlaciM. riiita.'i'ans Hy Mary I. li iiiii.un, tln'f.l \'l .»-.Ti;;.r I'hirit,.* ami l-'i-rn**. < '.1^:1. 'ral .N.>f I i!.'l,-.i. |i. .Asi'iiliaaa. ct^. Hv A. In TK' ;)i'i,*; r)f,-ip.i.l ' Sohii"'.!/!!.! t ril.-itarL'an.^. Hy Wal-I'i 1.. ^' iiiiiitt. Cimia.i.'a. Hy VV. T. C'llriiaii. (/« y. . iHuHun, U.;iiiila. Hy Mini P. I., ll.i.mo. i/'i ;»r. imruihin'. Aiiipliipoiia. Hy ClarL'ti"*- H. Sh.xTii.iii-r. [In /■'■■'i. P:int<.po.la. I.oun .1. I '.il... iZ-i /irc/iiri.'i.j'ii. : I-.upliyll.>j).).i.i. Hy F. .|.)lian^i-n. ' In p'^-inriti "% ■ : f Udoi'.'ra. Hy Clianrcy .In lay. (/'i ;!->■■ ;. Optra.-nila. Hy H W. Sliarpe. [In i>i;-,i:rt" .-i . Fr.'KhivaU'r (.k)pt-piiila. Hy < '. DwiRlit Miirs'i. In ,ir.'<.i). ; Marino ('tipi.'ptnl:-.. P.y .\. \^ iiU'v. 'I'lp'- . P:irasiti.. 1 'iipi'p■ -r. Volume VIII: Molluscs, Eclilnodi-rnw, CwknterU.'-. i;ti-. : .Mo!lu.''..i, rti-rr-nt anil PlciKtni'cne. HyWin. il. Pal!, .h^w I.) : ('i-pliali>p.i.laan.l Ptoriipiuia. Hy S. .--. Honj a:i 1 W. F. <-'\\\ ,' In v- :ur, : I'rhin.jiiorms. Hy Aii«tin H. < 'lark. In pr-ss^.. HryiiiDa, Hy U. ('. tialmrn. i/a yir.'/i.Tri/i.iilT liutatiiria. P.y H. K. Harrinii. Jn rrrp,iriiti"r\ ''liart-K'natlia. Hy A.d, Himtsiiian. ,ln prr;i,!T.ilwn). Mi-.luNai- anil ( 'Icnorlinra. Hy II. H. Hiiii.'l.nv. In pr.-j-:. Ilv.lrii.lfl. Hy Mcl.i>an Frw r. i/n ;ii->7'^"'iii mi. I'nnli'ra. .Vctinozoa. ami Al.'y..nari:i ivnt Ti.il im\\\ i:i i:ii > i:r. , i . 1 n i ■ Volume IX: Anm-lldg, Vansltlc Worm.s, l*roto/onn, Ktc . Hiiv;.!! liaota. Hy Frank Smitli timl I'a'il .-^ Wi-l.-li. iht'i'J). Pnlyrliaota. Hy Ualph V. ( Ihainlir'liii. ./affrMi>. lliruilini-a. By J. P. Moon', ./n pn/.ir.i'i./n). : (ifphvri'a. Hy lialph V. ( 'hairiborlln. Jnpri:is). A(:in(lu)roplmla. Hy II. J. Van ( 'Ifiiv..-. 'In prfjui. NmiiaUiila. Hy N. A. l^obli. {In pr./wrid.i;. Trfiiiatoila. Hy A. U. CoopiT. {In prrinri:-:,ir. . (iKtoila. Hy .V. K. <\)opor. {In pr-parf.i'tn' . Tiirlii'llaria. Hy A. Haa3<'U. iln prrparalvin'. (lorilia.'oa. Sporozna, Hy .1. W. Maviir. 'In prrpnrit\''Ti). : Puraniiiiifora. Hy J. A. C'uslniian. 'hiu-'i'. Volume X; Plankton, Ilydrosraplir, Tips. I u. : Plankton. Marino DiatAjins. I'i-lalOb.vrvationa. l)y W. Uoll Uaw*)i Jn ;i---i< . Ilyilr,>'j;raf>liy. ti:i <•! -vi I).