- .1 i ii i (FOODS BOM REOIC 



PLUMULARID/E. 



ii UK'.- I lydrothi'Cif senile, usually admit'' by one side, arranged on the upper side- oi 

 the hydrocladia or hydrotheca-beftring brancblete. Nematophores 1 always present. 



Gonogome.4 ionaiigia often inclosed in protective contrivances, sucli as modified branches or pod- 

 shaped receptacles called " corluil;c." No medu-;". 



Ki'if In (ft'nri'ii nj f'/iiniiil'i i-iil;t' i'u/in'1 tu lln' }\'(niil>: //ii/-' region. 



A. Kemftlophoreg tmmp!t-baped, nut immovably lixed to the liydrothccic. 



u . Hntnchini: ilichoiomoiis, the hydmelatlia springing 1'rom tin.- ui-prr side of the branches M<>/ii>*li> : i'ti<t*. 



a'. Braiirhinx strirllv iiiiimiir, the hyih'oeladi:i, or some of thorn, forked .Si'/<(':o?/-/i'/m. 



n". Bniuchlnx verticil late or scattered. Ou-nosarc canalioulntC'd in muin stem .Intniaulnrin. 



A'. Xeinatophores not tniinpct^luM^' 1 ! iiniiKn'i'liiv- iixo'1 to hydrothoi-Li' or oilier parts of polony. Gonangia 



]iroi'T!-''l I, -j.nvi;il n-ii;!lly forke-l hranc-hcs bearing neuiiitophoiv* \\'iiluiiu lu'ilrothofie (fadocaryxt, 



MONOSTJSCHAS. 



Tm//lniMiini: Colony dichotonionsly tii'anchcd. Ilydfoclailia liornc on npiu-r ^ides of liranch es. 

 G'onownu 1 . Gonangia ovoid, borne at bases of liydrol!icc,-i . 



Moiiostsechas quadridens (ilcCr. ). I-'i;r. MI. 



i il-tfin i/iiiiili-ifli'n* Mrl'rM'ly. I'rfir. Klliott Sor.. Vol. 1. N'o. 1. p. 1!W. I 



Ti-i'iilinxnnii-. Coloii'V erect, composed of a main stem with branches which 

 themselves branch dichotoiiioi.vly, hi-ariiis; hydrocladia at their points of junction 

 and also on their upper sides; hydrocladia composed of internodes, every alternate 

 one of which bears an hydrotheca. 1 1 ydrotlieca' cup-shaped, witli even margins, 

 initiate lor about half their length. Xematophores trumpet -shaped, three asso- 

 ciated with eai-h I) vdrotlieca. and usually two on each iuternode of hydroeladium 

 that does not bear a hydrotheca; a row of ncmatophoivs is also found on the upper 

 side of each branch from which hydrodudia s[irin<r. 



fioiioaiiiin'. (ionanji-ia ovoid or pyril'orin, borne on short pedicels Justin-low c.s. )i,,iu,ftu; -IMS, im ,i- 

 the hydrothec;e. '''''"'- <MrCr.). 



l>i.-!rilniliiin. Dredged by the .\lluili-mtx near Marthas Vineyard. 1'epth, 22 fathoms. The 

 species is common southward to the West Indies in moderate depth. 



8CHIZOTRICHA. 



7Vn/i/i"w///'. Colony consistiiiir usually of a cluster of simple, upright stems, giving forth 

 hydrocladia in a pinnate manner. Hydrocladia in mature specimens forked. 



iliiinixitiiii'. (ioiuingia ovoid, tubular or cornucopia-shaped, borne on the main stem, brahehes, 

 or hydrocladia. 



A,'// In x/H-i'ii-x i,f Xrhi-.iilrii'litt jimml in Ilif }\'niiiln /full' re.yion. 



An hyilrotln-i'ii in tlic axil of wicli liyilnicladiiiin S'. It'iiflln. 



N'o hv.l i'. ,! i n'l'; i in tin 1 ;ixil> of tlu 1 hydrocijuliii N. iiritrilliinil 



Schizotricha tenella ( Verrill ). .Fig. 70. 



i Ilinuntiiriii liinllit Vvrrill. Irnvrlrliratnl Animals of Vini'Vanl Soniul. p. 731.) 



'l'i-iiiiliiix/iiiii: Colony iri'the form of very I'.elicate white ])lumes, 1 to!! indies high, each plume 

 consisting of a central stem giving off alternate hydrocladia. with hydrotheca at l>ase of each; 

 hydrocladia often forked in mature specimens, with internodes and hydrothecie much as in the last 

 species, but with an additional short internode often intercalated. Xematophores as in the last species', 

 except that there is hut one to eadi intermediate internode. 



1 The iH-niatophoK-y an- minute trumpet shaped or tubular organs composed of chitin and usually associateil \\ ith 

 the hydrothecffi, two. one on each side. iH'ini; fiaind near where the margin of tile hydrotheea joins the stem to which it 

 is adnate, and one jn:-t in front of the bottom of the hydrotln ca. dther.-i.aie found on tin- branched, stem, mid protective 

 c-ontrivanees which iii'-lose the ,i;oiiiin^ia. Tlie nemntophores contain liijflily remarkable strm'tnres known a-' lafcOBtyJea 

 that are e;io.-ili!,' of rnorinoiis eNinei, ,n. 'i'liey ar-- morphol.'tric:!!!-.' " pf ;^on<" of the colony. 



