, ont 6X6 film6es k nouveau de fagon k obtenir la meilleure image possible. 
Opposing pages with varying colouration or discolouratjons are filmed twice to ensure the best possible image / Les pages s'opposant ayant des colorations variables ou des decolorations sont film^es deux fois afin d'obtenir la meilleure image Tha copy filmed h«r« h»% b««n raproducad thanks to tha ganaroaity of: 
Stauffer Library Queen's University L'axamplaira filmi fut raproduit grica i la gAntrosit* da: 
Stauffer Library Queen's University Tha imagas appaaring hara ara tha baat quality poisibia coniidaring tha condition and lagibility of tha original copy and in kaaping with tha filming contract apacificationa. 
Las imagas suivantas ont At* raproduitas avac la plus grand soin. compta tanu da la condition at da la nanat* da l'axamplaira film*, at an conformity avac las conditions du contrat da filmaga. 
Original copias in printad papar covara ara fllmad beginning with tha front covar and anding on tha last paga with a printad or illuatratad impraa- sion, or tha back covar whan appropriata. All othar original copiaa ara filmad beginning on tha first paga with a printad or illuatratad impraa- sion, and anding on tha last paga with a printad or illuatratad imprasaion. 
Tha laat recorded frame on each microfiche shall contain the symbol * (meaning "CON-TINUED"), or tha symbol V (meaning "END"), whichever appliea. 
Las exemplairas originaux dont la couverture tn Un dea symboles suivants apparaitra sur la darniAre image de cheque microfiche, selon le cas: le symbols -» signifie "A SUIVRE". le aymbole V aignifie "FIN". 
Mapa. As nearly all of the species of shrimps collected hy the Canadian Arctic Kx|M'dition were descrilied and their -ynonymy worki'd out in the author's report on the decapod cruslace: ns of the llarriman Alaska expedition (mc l.ihlionraphyi. a reference to that work is w le under each of thoM> specie-in the list lielow. 
It may he noted that the care with which the specimens were ohtaineil and preserved is due to .Mr. rrit« .lohansen, naturalist .if the expedition. 
Ij.sr UK llIK Sl'KCIKS. 
< )rder I)K( AI'ODA. 
Siilienlcr N ATW riA. 
""I'lrJiiriiilv I' WltM.llllt.X. 
Family PANDALIPE. 
(ienn> Pandalus J.each. '.\ 1(H) faiioms. 
^iiIMTT iMiily l'.\l..\h:Mi)\i)lli 1 mil, HIPPOLYTID.*. 
'. 
Spif(«»nt«»a«r»8 Hute. 
Spirontocan--fe~'Pn!iS{sdicu .1. ( ' . 
Fal.ririusi. ><pteiiilM! 14, Htl5; station j^< ',iiiiith<ni .\iitii-Hsiii'l'tiiiii, mi.t IS UniK.i.l liaiK-.m. Nuitliwi>l T.tMt.Mi.-; ti..i,i ~i..niM> I, ,.t I., uii"ill,n>. 
DiMUii.t HON, Ar.tif v»A'\ nf Ain.rira; UmiiK vm to I ..u.l m.iiii.I. 
Ivi.n.l.atkM; (»k.,..t«k s.-h: Alhi.tir .-..mM ..f Aiii.Ti.:, Iruiii Ka-t aiMl W •-» (Ir.-.nl.HMl t.. Nairi.tfaii-.it Lay. l!h...l.' i-l;m.l; Nurwiiv. III. tali.um . SpJrontociirls soina (Sowtrliyi. iU:iiiii.uii. I'.Hii, |i <:i, \>\ III. tin. :>,» \,,rtl. ..f th.' Ala-kai. l.nim.lur\ ; lat. 70^IH' N., loim. I Uf .".(I' W .: al...ut :<(» falln.in-inu.l: fn.in >t..ina.l, of /'/-.«w //-.;,"/.,. April I. I!»l »: >taiini. _".•(. «»iii. 
"iiiTiiiitii ami fraumiiil'' "f turiT (illicr-. horlnihis: ( If I oh. r •_'•-', l'.i:.'>; elation \-2n: two h|).Tm..iis DisiKimnnN-. From Ar.ti.' Alaska lolT point ilop.M, tliroiiKl- ni.K -trail HiriiiK -.a. A'ciitiaii i-laii.U ami Alaska pi imisiila to l.itiiva l.ay, Alaska. Xri'tir North Am.-, from Kll.'sin.rr i.aml. .h-ii'-s souii.l, ami Mrlvillr |..iiin- Miihi fa-twanl to ( .nTiilaii.l. Irciaii.!. aii.l Nova Znnl.la, aii.l soutliuani to Massacliiis.'tts hav, Tacror islamU, ami Kattegat; :{ '-'lO talh.>rii>. For tahlf of (lislrilnition, -If von Hol>t.h. I'.titi, tii£. I. 
Thf two loraliti.'s of thf Caiiailian Arrtir Kx| '.lition arr at wi.lc iiit.'rval- hctwc'cii those previously recorile.l in Alaska ami Arctie Canada. 
Splrontocarls arcuata UathlMin. ll{;llllllllll, I'.KIl. |> tit, pi. III. tin 1. 
1 West of Coekhiirn point, Dolphin ami T'lion strait, Northwest Ti rritorie- \•^2 0 fathoms; >an(ly mml, with stones ami alija-; Sepieinl-.r 1 1. I'.»l.): station 4'{r; one specime.i. Hitherto known only from :l)ilot islamls, lierinK sea to strait of Juan .je Fuea. Its .•eeiirrenee in Aretie • na.la eonsi.h'ral.ly exteml- the rann>'- Spirontocaris phi-fi'sii (Kniyer). i;:.,lil>un, 1!M». i> <«.) West of ('oekl.iirn point, iM.,)hinaml I'liion strait. Northwest Territories 1.-, 20 fathoms; samly mini, with stimes ami altia-Sei)teml.er 14, l!»l.); station \'.ic: three specimens. i r i. 
,i 
Hernanl harl.oiir. Northwest Territories; from stomach oi hmjiinllm harholus: October 22. I'.tl.-); station 42-(,-anterior half of one sp.'. imeii 
DlsTUiniTioV. Arctic Alaska (west of I)oint lTau':lin) -outliwanl ti; Plover l.av. Siberia, ami to the Shumanins, Alaska peninsula; Kllesniere l.ami ami .loms souml to Kasteni Creenlaml, southward via Labrador to cape ( od. Iceland the Fa.Toes, ami Si)itzber>:en, eastward to Kara strait and southwanl to SkaKcrak; Middle Arctic Siberia; shallow water to 200 tathoms. 
For table of distribution, see vmi Ilofsteu. n»lf., Ii^. 2. 
The two l.M'alities of the Canadian Arctic Kxp.'dition are mar oK<'thei and remote from those on either sid.. wh h have been i)reviously recorded. 
Spirontocaris polaris (Sabim ). 
(Hathbun, l'.M)4, p. TH.) 
Off point Lav, Arctic Alaska; lat. 69°35' N., lon^. Uf 27' W.: H 1. 
oms; rock ami sand, with many alpa'; AuRust W, IIH:^; station 22; om fath specimen 'm,> Wc-t !•;' » 't.rkliiini (luirit, Diilpliiii aii'l liiiMii -tniit. \urlli\u-t rrrrituric-i; .li.ly Jd. I'.tl.'t; .lalinii II; (ivf ^|H'c mu<. '•i.cr ll • 1.. r. r.criianl liarliniir, Nuithwr-t 'I'l rritni ii-; alMiut .'» t'allii>iii«; iiiiui with a,..-!iiw.«tl\ hiiiMi: .Inly JH, M.M.'i. >atiiiii Ih. thni' -iMiiniiii-' I I '2 . I. Till' ir.ilf ami mif iVmalc liasr piir|)li>li ant' unal »ralr-ami piii[>lf iliit-markinn^^<>ii .intfimai-, «vt-«talk», ami !•({>: lil'ini imiri' KraiiKr, larapatf tlaiiiimat)'. (  III. tii;^. :{. :{ii.) Off Icy cape, Arcti' Alaska; lat. 7( ^24' N., lonjj. ltU°2.')' W.;ft 10 fathoms; mud. with pehhles; .Vutjust lU. I'.MS; station 2;i; one ovifjeroiis ; and fragments ot one ". one s . 

(

Stajiylton hay. Dolphin ami Inion strait. N.irthwe-t Territories; 2."> liO fathd.ii:-: sandy mud, with petihles; September 14. KM."); station V,M>: one -.'. 
DisTi'im Tio\. \ova Zemhla, Kara sea, .\rctic-Siheria and .Maska, t'li ,ice south to Siika; Doljihin ami I'nion strait, .\rctic Canada (see ahove); Western (Ireeiiland and Labrador: V^',M fatl.i > . 
Tliv distriliUtion of the species, .S. {ittinitt.ilii, uith a!i its vari:tt ioti^is much more extensive (see von Hofsten. lOKi. tig. 4), including Kastern (ireeulaiid, Icelanil ami Northern Eurojie, thence southward to Scotland and Kiel hay. Crago septemspinosus (S:i\ i. {('riiiitinii Ki jiti iih'^iin'D.-'d ]iiillibim, llKlt. p. I Ki. ii'xi lijj. , ").">. Nt-ar ('ranllcy liarlioiir. Port Clarciicc. Alaska: 2 A fallioins; imid. witli many alfias August 4, HtKi; statidii 2()(/; one spt'ciincii. 
Disruim rii>.\'. Arctic coast of Alaska at I'.sclisclinllz hay southwanl alniifj tlic eastern shore of Herinsj sea to the Shimiasjins; east coast of North America from eastern Florida (Say) northward: shallow water to 4^") fathom- (otT Delaware). 
(lenus Sclerocrangon Sars. 
Sclerocrangon boreas (I'hipi)s). 
(.Kuthhiin, 1".K)4, p. l:W.) Off i)()int Lay. Arctic Alaska; hit. ( i»°-.W \., Umn-Iti^i" 27' \V.: 1 1 12 fathoms: rock and sand, with many algii'; Au^nst 17, llUli; station 2'2: thirtvoiie specimens. 
Off Icy cape, Arctic Alaska; lat. 70°24' N.. lonR. lOT 2.")' W.; 9 10 fathoms: mud. with jiehhles; AiiKiist 10, 1013; station 2;^; one small si)ecimen. 
West of ('ockl)inii (xiint, Dolphin and I'nion strait, Northwest Territories: 1") 20 fathoms; sandy mud, with stones and algip; Se])tomber 14, 101"); station i'.ic: six sper'imens. 
Hcrnard harhoiir. Nortliwest Territories; from stomach of Erlijnntlnis harlmtus: ,Iidy (VIS, 101."); sttitioii 40)/; fragments of one specimen. 
Bernard harbour, Northwest Territories: from stomatdi of big 9 Eriijunthii.-hiirlxitux: ,'^eptember ;5, 101.5; station 42r,-frafjments of three specimens. 
liernard harbour. Northwest Territories: from stomach of Kriijnnthii.'' Imrhdtus: .Vngust 24, 1014; station ;{7((.' third abdominal somite of a very larfje specimen. 
DisTuiiuriov. .Vrctic Siberia near Bering strait, and Arctic Alaska, southward via Bering sc;i to Killisnoo. Alaska, and strait of (ieorgia. British t'ohmibia (Lenz); Sakhalin island and vicinity, Ivistern Siberia; islands of Arctic America southward t" cape ("od; (ireeidand, Iceland, Northern Europe, eastward to Kara sea and southward to the I'aeroe islands and to lat. () 7°lo' N. on the coast of Norway: to 200 fathoms. 
For table of distribution, see von Ilofsten, 1010.  leiuis Nectocrangon Brandt.. Nectocrangon lar lOwcm. iRalhbuti, I'.HM. p. i:)7, text-tins. 7t mii4 "•").) Off point Lay. Arctic Alaska: lat. 00°:C)' N.. long. l(i:{°27' W.: 11 12 fathoms; rock and sand, with many alga-: .\ugust 17. 1013; station 22: two sjiecimens. 
Near (irantley harbour. i)ort Clarence, .Maska: 2 ;} fathoms; mud. with many aleiv: August 4, 10i:<; station 20f/.' one speciinen. DiSTKiniTioN'. -Arctic coast of .Maska and Siberia soulhwiird to Sitka anil Kurile islands; Western and Kastern Cireenland southward to Nova Scotia; to 220 fathoms. Sabinea septemcarinata Sabine. ( Ilaiiscii, lltOS, |). :,->.) 
Xortli (if till' Ahiskiin bound.-irv; hit. 70°V .V \ Uma 14 (1' -.11' \v tv , >.o...t.l. ..f I'k,.., f,";,.,a: .l.,,tl. or water about .0 fath 'mlf^'nlu: ; A n V" , u' station 2<»/; fraffniciits of two specimen- 1 ! t, i..n, OiT Stapylton bay, I)olpl,i" an,l C.ion >trait, Nortl.west Territories-"-, SO S':;;u,r:p;;-i.z:;: ^^"'' •""''•'•-"" '"^-^"'-""-> » ""--'Vi,;,: 4;;i;; 1 ?*-'/,'"';'''""" '"'V'^-'^"ll'l'i'i ''"<! Ini-.h strait. Northwest Territ..ries- S;;';ive ;;:;'•;;;:;;:''''''• "" '''''"^' '"" "-•'«-; ^ H.-rnai-.l harbour. Nortinvst T..rritories; from stom.-u-l. of Hriamithx. horhatus: October 22, l!.I.^: ..tat ion 42-/; anterior half of one ..p..ein...n ni.sTHiiuri...v. 
An-tie Am..ri<-a from the Alaskan boun.larv eastwar.l to I.' .Vmertean jslamls then.-e southwanl to .-ap,. Cod; wesfrn ami ...s e L ri'iV'lV I-'j-l. ^XToes. northern I-lurop.. ami Siberia, ea>twa.-,l to l.VnK I'O 1/ 1'.., and southwanl to Saltenfjonl, Norway : to 24(> fathoms. 
For table of distribution, see von Mofsten, I'tld, fijr. s. 
SlllxmllT JlKl'TANTI \. 
Tribe AXOMCUA. Sii|»Tf;ir]iiiy I'.XCrm l)E.\ Family PAGLRID.E. 
(ienus Pagurus I-"abrieius. 
Pagurus trigonocheirus (Stimpson). ( Stinips,.!,, Pnic. Ac;i,l. Nai. .S-i. I'liihi,l,.l|>lua. vol. .\. l.s.'.s, ,,. _>4..» [sTj.l Off ley cap,., .\re1ie Alaska: hit. 70^24' N.. Ions. l(;i^2.V W.: <» 10 fathoms; <l. with pebbh-s, hut no aJfTu': August !<», ntl.S: station 2:?: one : ovitrerous ' youiifr. 
' DisTuim-m.N-. Arctic coast of Alaska and Silu-ria southwar,! Ihn^mh i^iiiiifr sea to Aleutian islands and Kamchatka: 3 to 100 fath.mis. 

Off I mil one youiifT

Pagurus capillatus (Hdudict). !B™,.,hct, 1'r.H-. V. S. \,-,r. M"<., v.,1. .W. ls!r.'. ,,. s. Rathl.mi, 1!M)I, ,,. 1,". pi. IV, n.. ;!.) Near (irantley harimur. port ( 'larcm-e. Alaska: 2 W fathom-mud with many .ni-i-; Au^u-t 4, I'Mli; st:itiori 20,7.-one specimen. DisTKim-Tiov. -Arctic ocean southward through lierinsi strait to Kamchatka and ( ahfornia (lat. .S(i°:vV N.); ;5 to 240 fathoms. 

1 -

 1 i)oint. i1." 20 fathom.-; .-andy mud, wii ^c; three specimens. I V(,l. vii 464.>4-li = ti.iit, Nor'hwest Territories; ' : 




  ur,N..rtli«.'>l TniiK.ri.-; Iioni .lomaili <.t /•.-'"'.- 




  I ilKii-. .-' |ii''mlwr !>. I'.M.'i, -luiinii \'.\r: Kill' ^iMTlltii'ii. with 'Mi|iM'ii| |iiiru«itt' in lilt lit'niM ' 'll cli.'tnil.i r ( >iit) r hill liiiiir Mtrii.iiil hnilnnir. Nnrlhwi'^i 'rfrniiiilc . .. -mih " 


6a(

  Huiulinti Arctic K.rjtiiiiliiiii . IHI.i IS Sii[i.Tf;irMily IH M.OMIll) \. I atiiilv CRAGONID/E.( icnus CragoI.aiimrck. 




  i 




  fig. 7. 




  papier est imprim*e sont filmAs en commencant par la premier plat at en terminant soit par la darnlAre paga qui comporte une empreinte d'impression ou d'illustration. soit par la second plat, salon la cas. Tous les autres exemplairas originaux sont filmis an commandant par la premiere paga qui comporte une empreinte d'impression ou d'illustration at en tarminant par 



la derniAre paga qui comporte une telle empreinte. 


  plates, charts, etc.. may be filmed at different reduction ratios. Those too large to be entirely included in one exposure tf filmed beginning in the upper left hand corner, left to fight and top to bottom, as many frames as required. The following diagrams illustrate the method: Attention i-call.-j to the distrilnitional enarts of V(.n Hofsten (see hililionraphvi in some of which notal.le gaps are filled or reduced l.v the new data here pulilished. 


	The Decapod Crustaceans of the Canadian Arctic Expedition
		1913-18.
	My M Miv .1. I! MiiHi A.
	.l.s.s7i(/(i/( III /.iinlniiii, IkiIiiI Sliili .s \ill iiiniil Mux, inn.
	Thf known lanir. of M'vcral spcric-is txti'iulfd l.v th->|M'citni'n-i ohtainf.l
	l).V th.' <'!lliailiiin Alrllc Kxpr.litioll,	l''ivr of ihr s|M'ci(.« of Siiiiniitnrilris ari'
	^-hown to hiivi' a more .oinpli'ir .ircuinpolur iliMril.iition, while I'lirnlilhiiihn
	ninitsrliiitniis j, nconlcd fur tlir fir-1 tinii' from tlif \iciic (occurrence possil.ly
	acciilentali, ami I'liiiinns hrniiilli Norton M.iind.	,rn-< to n acti	i;ir r -tli in Herinu sea lis
				et de haut en baa, en prenant le nombre
				d'imagea nAcassaire. Las diagrammes suivants
				illustrent la mithode.
	1		2	3
			1	2	3
			4	5	6

Lea cartea.planchea.tableaux, etc.. peuvent 4tre filmis i des taux de reduction diff Arents.Lorsque le document est trop grand pour Atra raproduit en un seul clichi. il est film* A partir de Tangle supirieur gauche, de gauche i droite. 


  tutcr harlmiir, H« riianl harlMiur.Northwf«t 'rcrritniicH: almiit ;< futlKinis; iiiml with itruvvii al»£;i'; All^fll^l I, l'.t|.">; >tatiiiii 11/, um-Dvictruii-iVmalr, 'loin .\iitii"(Mean, mirth of Hen: "^strait, -outhwanl to till' .Miiitiaii islamis ami Kaitiak mi the .Ximriraii >ii r. ami tn Oklmtsk M'ii nil tlif .\»iati"A{\v\ .Vntif Atiicrica from Milvillr island sduthwanl to capf ( 'tul, -Massiichusctts.and oast ward via (Inrnlui.dand Iceland to Niw Sihiria i.»lamU; sduthward on the I'.uropfan coast to the Hchridts and Skajjirak; 1 7^W.\fatiioms.For talilc of di-trilxition. si-c von Ilofstcn, lOlti. fijj. U. Tiif two general localities where this species was taken liy the Caiiaiiian Kxpeditioii are interimdiate I.etween those previously recorded. . .\rctic coast of Alaska southward thnuKh Herinu sea <o Okhotsk sea and Alaska n'ook inlet); Arctic Canada (r ahove); .Xtlantic coast of America from West (Ireeiiland -oiithw.-ird to Mass;, '.usetts hav. Low water to 100 fathoms. 


		iim-yiiiiiiK.		
		hmianl liarlioiir, Norlliwi-I 'i'lrriturio: ftnin -tdiiMch nt' liig ; luninnlhiis
		hiiiliiiliis. Sc|ilciiili('r ;i. Iltl.'i; >iMlii)ii \2i : mic s|tc(iiri'ii.
		Hciiianl iiai'lioiir. Nuiili\\iv-.t 'j'criitiiiu'>;	I'nuii	>liiiiiai'li	nf luKjinilhiin
		hiiiltiiliis: ( (riolicr 22. l'.M."i: >iatiuii I2i/; itiii' ^pccimrii.	
		Disiniiii IK'V		
		Spirontocarisi fabricii (Krityer).
		Spirontocaris gaimardii belcheri (Mell).
		llUilhhuM, 1<M)4. p sf>, |.l.		
	:;	on		

IlUiilhimn. !»»<'». p. h.">.) Off point Lay, .Vrctie .\laska: lat. (iif ;{.V N.. lonK-Iti:^27' W.; II 12 fathoms; rock and satiil, with many al>£!<'; Aujjnst 17. I'.ti;^; stsitioii 22; two , ovi({eroUs. West of Cockliurn point, Dolphin and I'liioi' strait. Northwest Territories; 1.") 20 fathoms; samly iiiwd, with stones and aljja'; Sepli mlier 14. I!tl."); station \'M-, twenty-three specimens. DisTKiBiTiov 


  ••pt-m.-r ix i.nV;':!;;;-Ĥ crn.anl harbour, Xorlhwest Territories; tn,,,, stoina.h of Erinn.,tln,. harh,a,,.: .July (1 N, 1!»|.-,: statiou JO/,.-on.. s,.,.ein.e., ''njnuiin,.. Hernanl harbour. Northwest Territories: from stoma.-h of bitj ; Krinunlln,. hnrhnlus: September :{, IltJo: station Jl'..-one speeimen i.n<.in"Un,. 



('(iiKtilidii Arctic Kx])i<lilion, U)13 IS Pagurus brandti (I^tiudict). iHcniiliil. rnic. 1 '. S. N;it. Mus.. vdI., XV, 1S<I_>. p. ',». Hiuhbuii, I'.HII, p. 1.".7, pi. IV, fii?. 1.) Xorloii -oiiml. Alaska: lat. iV.i" V.i' N., Ions;. Iti.")" 24' W.; surface; July S, VM'.i; statiiin 10; one rijjlit clicla. DisiKim Ti(>\. Jicrinu sea southward tt> Oregon; It to 121 fatiioms; hitherto the latitude of the I'rihilnf islands was the farthest north known for this species. 
The siiecinien from Norton sound, if the identification he correct, extends the ranp;e. Pagurus splendescens Owen. lOwtMt, ill Zool. of Ciipt. Hci'clicy's Voyafjc. ISL'.") 2S, I.dikIoh. \S.i'.*. p. M, 1)1. XXV, li(5s. 1, l:i.) OIT Icy cai)e. Arctic Alaska; lat. 7( 1°2>' \.. long. 1( 11°2.')' \V.; (I 10 fathoms; mud, with pebbles, but no alga"; August 1!). lltKi; station 2;i; two small sju'cimens. 
DisTKiBiTiox.-Arctic coast of .\laska ( point Barrow) westward through liering sea to Kanicliatka and Washington; below low water to 22.J fathoms. 
Pagurus sj), indet. 
OtT cape Lisburne, Arctic Alaska; lat. () S°4S' N., long. Kio" 10' \V.; surface; August It), \\}\:i; station 21f/. c, f: two specimens of the megalops stage. 
Family LITHODID/E. 
(ienus Paralithodes Hrandt. 
Paralithodes camtschaticus (Tilesius). 
(Houvicr. .\iiii. Sci. Nut., Zool., srr. S, vol. I, IWMi, p. 2:5.) Point Harrow. .Alaska; (m sand spit; beach; August 22, 1913; station 24; l)roi)odus of left clieli])ed of a specimen of medium size. 
DisTRiiuTiov.-Point Harrow, Arctic Alaska (see above); Hering sea (from Norton sound) to Aleutian islands to Orca. Prince William soimd; Skide- gate, (^ueen Charlotte islands, Hritish Columbia {(ieoh)gical Survey of Caiuida); Kamchatka; Okhotsk sea; .Ia])an; low tich' to 49 fathoms. 
Tribe BRACHYVHA. 
Sul.tril.c HRACUraXMIIA. 
.SiiiHTfiiiiiily HK.irinitinXcUA. 
Family ATELECYCLID^. 
(Ienus Telmessus White. 
Telmessus cheiragonus (Tilesius). 
(BciKMli.i, Proc. I". S. Nut. Mus., vol. \V, 1s<f.', p. J'-M. pi. XXV, pi. XXVI, figs. 2-4 .) Beach at Teller, Port Clarence, Alaska; .luly , M, VJV.i; station 20(i; one a\ tSVo V, and !i\e (aral)ai (.-. Beach at Nome, Alaska; July 12, litK}; station 20(».-one ? and d five carapaces. DisTKiniTio.v. -Northeastern Siberia; Kamchatka; Kurile islands; Bering sea to California (Holmes); low water to 20 fathoms. Family INACHID.E. 
(lentis Hyas I.eai'ii. 
Hyas coarctatus Leach. 
(Hathl)Mii. I'roc. l'. S. Nul. .\liis,. vol. .W'L Isit.j. p. (ill.) Off Icy caF)e. Arctic Alaska: lat. 70°24' X., lonn. i(i|°• _'-/ W.: !) 10 fathoms- iniKl, with pebbles, but no alga-Aufjust 1!), 1<)13: station 23; fom-rf-, f(mr 9. ' Langton bay (Fast of Mackenzie river), Northwest Territories: October 2(), 1910: Dr. H. .M. Anderson: fifteen specimens (Amer. Mus. Nat. Hist.) two of which were taken in the net in 8 fathoms of water. A note accompanying the crabs states that they are known to the Kotzebue sound Fskimos as I u-tu-ri-ak,' but are unknown to the peo|)lc east of the -Mackenzie.' 
DisTKimrioN-(including Uijax coarctatun alutaccu.s Hrandt