zonociliate 
of cilia ; encircled with cilia, as a trochosphere 
or telotrocha. See these words, and cut under 
veliger. 
The fertilized egg of the Phylactoliema does not give 
rise to a zonociliate larva. Encyc. Brit., XIX. 437. 
ZOnoid (zo'noid), a. [< Gr. (umecdiir, like a gir- 
dle. < Caiv;?, girdle, + eUoc, form.] Like a zone; 
pertaining to zones; zonular. [Rare.] 
ZOnoplacental (zo'no-pla-sen'tal), «. [< L. 
^ona, girdle, + NL. placenta + '-«;.] In mam- 
mal., having a zonary deciduate placenta ; of 
or pertaining to the ZonoplacentaUa. 
Zonoplacentalia (zo-no-plas-en-ta'li-a), n. pi. 
[NL. : see zonoplacental.l Those deciduate 
mammals in which the placenta is zonary, as 
contrasted with Discoplacentalia; the Zonaria. 
The carnivores, the elephant, and the hyra.x are 
examples. 
Zonotrichia(z6-no-trik'i-a),n. [NL. (Swaiuson, 
1831), < Gr. s"vrj, girdle, +' Bpii (rpix-), hair.] A _ 
genus of large and handsome American finches, of spiny scales on the tail, as of Z. (jiganteus. 
of the family Fringillidie ; the crown-sparrows. Zoo (zo), n. [The first three letters of zonlogi- 
The white-crowned Is Z. leucophryg, abundant in many 
parts of North America. More numerous and familiar is 
the white-throated, or peabodybird, Z. albicoUii, whose 
white throat is sharply contrasted with the dark ash of the 
7039 zoSglcea 
-.C-S^W*!!,. zooea, ZOCEal, )i. See soea, zoeal. 
zooecial (zo-e'shi-al), a. [< zoceci-um + -al.] 
Having the character of a zooeeium; of or per- 
taining to the zocEcia of polyzoans. 
zooeeium (zo-e'si-um), «. ; pi. znwHa (-a). 
[< Gr. C,C>r,v, animal, + ohia, house.] The ecto- 
cyst, or outer chitiuous or calcified cell, in 
which a polypide of the Polyzoa is lodged, and 
into which a polypide can be retracted after 
protrusion ; one of the cells of the caenoecium, 
containing a polypide. it is the cuticle of the poly- 
pide itself, dense and tough,orhard,changing without so- 
lution of continuity into the soft delicate pellicle at the 
mouth of the animalcule. In the eetopioctous polyzoans 
it forms a case or shield into which the soft protrusible 
parts of the polypide can be withdmwn. See ectocygt, and 
cut under Plumnt^Ua. 
zooeform, rt. Seezoefurm. 
ZOOerythrin (z6"6-e-rith'rin), )i. [< Gr. Cwoi', 
zonire ,z„,„.us g,ir«„,„.s). animal, + kpvep6g;veA, + -«ie2.] 1 . A red color- 
genus of Zonuridee: so named from the rings "'S matter obtained from the plumage of the 
„f „„; — . „„„i i.i._ i_;i n r, .... — _, MusophagidiB or tiirakoos, giving a continuous 
spectrum. See turaciii, — 2. A kind of red pig- 
ment of the lipochrome series widely diffused in 
sponges, and regarded as having a" respiratory 
function. W. J. SoUas, Encyc. Brit., XXII. 420. 
Also zoonerytlirin. 
ZOOfulvin (zo-o-ful'vin), n. [< Gr. C,Cmv, animal, 
+ h.fulrus, tawny, + -in".'] A yellow coloring 
matter obtained from the plumage of the Mu- 
so}>liagida; orturakoos, showing two absorptive 
bands not the same as those of turaein. 
ZOO^amete (z6'o-ga-met), ». [NL., < Gr. fipoi', 
animal, + yaiwrt/, a wife, etc.] In bot., a mo- 
tile gamete. A\so planogamete. 
cal, taken as forming one syllable.] With the 
definite article, the Zoological Gardens in Lon- 
don : also used of any similar collection of ani- 
mals. [From a mere vulgarism, this corruption 
has passed into wide colloquial use.] 
ZOoamylin (z6-o-am'i-lin), n. [< Gr. C(iini; ani- 
mjil, + E. amyfin.] Same as glycogen! 
zoobiotism (z6-o-bi'o-tizm), «. [< Gr. f^y, ani- 
mal, + ,i/of, life. -I- -i- + -ism.] Same as bioticn. 
zooblast (zo'o-blast), «. [< Gr. C<mv, animal, 
+ li/xin-o^, germ.] An animal cell ; a bioplast 
(which see). 
Zo6capsa(z6-6-kap'sa). H. [NL., <Gr.CvoJ',ani- ZOOgamous (zo-og'a-mus), a. l< zoogam-y + 
mal, 4- L. cap'sa, box, chest : see cap,wle.] A ge- 
nus of fossil barnacles of the Liassic perio<1, 
representing the oldest known form of Balani- 
dee. 
ZOOCarp (zo'o-kiirp). n. [< Gr. Cuov, animal, + 
Kap-og, fruit.] Same as zompore. 
ZOdcaulon (z6-o-ka'lon), «. [NL., < Gr. Cvoi". 
animal, + Kav}.6c, stem, stalk: see caiifi, canlis.] 
-oH.v.] Of or pertaining to zooganiy; noting 
the pairing of animals or their sexual repro- 
duction. 
ZOOgamy (zo-og'a-mi), n. [< Gr. Cf»j), animal, 
+ >a/;of, marriage.] The coupling, mating, or 
pairing of animals of opposite sexes for the pur- 
pose of reproduction or propagation of their 
kind ; sexual rejiroduction ; gamogenesis. 
Wbite-lhroHted Sparrow, or Peatxxiy.bird {Zimorrirhia albi^ollis). 
The erect branching tentaeuliferous colony- ZOOgen (zo'6-jen), -n. [< Gr. C^f, animal, + 
stock of some infusorians. as of the genus />«« -— ■- '■■-= ■■ ' ' - = 
drosoma. W. S. Kent. 
u zonule of ^inn. — ZontUa of ZllUl. 
Zinn. 
zonular (zo'nu-ljir), a. 
.Same as zonule of 
[< zonule -I- -flr^.] 1. 
ilack and ZOOChemical (zo-6-kera'i-kal), //. [< zoochcm-y 
1 eye, and "t. -'c-<il.\ Oi or pertaiTiiiig to zoochemistry. 
•■ Zo6chlorella(z6'o-klo-rel'a).».; -pX. zoikhloreUs' 
'"' (-e). [NL., < Gr. Omv, animal, + x^^pk. pale- 
green, + dim. -ella.] One of the green pig 
breast. In the adult the head is striped with black 
white, there is a distinct yellow spot before each eye, 
the edge of the wing is yellow. The length is BJ inches. Zoochemistry (z6-6-kem'is-tri). «. [< Gr. Ci^'. 
the extent 9i. 'niis sparrow abounds in shrubljcry of the animal, + E. chemistry.] Animal chemistry; 
eastern half of North America, and has a limpid pleasing i\,,. ,,i,t.,,,;.,t,.,. nt n.r. , ^„itit,.„„t „* ti, ■ i 
•ong, some notes of which are rendered In the word pea- W chemistr.v of the constituents of the animal 
6odv. Z. (jnenda is Harris's finch, of the Missouri and uodv. 
Mississippi region ; the male when adult has nearly the ZOOChemy (z6'6-kem-i), w. [< Gr. C^v, animal, 
whole head hooded with jet-black Z. coronata. of the -(- E. *chemy (t'. chimie) : see akhemii.l Same 
Faciflc slope, is the golden^^rowned. ■• t ■ , r, ,- • - 
•A^ni. ,i,^>,.-, ia\ . ^ , / i-x rxTT Hs zoochemi.sin/. Dunqb.ion. 
zonula (zo nu-la), «.; \n. zonnlse (le). [NL. ■ - — -■-• 
see zonule.] In iinat. and zoiil., a small zoiu 
belt, or ring; a zonule — Zonula dUaris. Same 
-;f''W, producing: see -j/eH.] A glairy organic 
substance found on the surface of the thermal 
waters of Baden and elsewhere. Also called 
zoiodin. 
ZOOgenic (z6-o-jen'ik), a. [< zoiigcn + -ic.] Of 
or pertaining to zoogeny, or the origination of 
animals. 
zoogeny (zo-oj'e-ni), n. [< Gr. C<fWj), animal, + 
-; tveia, production : see -geny.] The fact or the 
doctrine of the origination of living beings and 
the fonnation of their parts or organs. Also 
zofignny. 
ZOOgeog. An abbreviation, used in this work, 
of ziiiii/iogrnpliy. 
mentary particles, or minute corpuscles of ZOOgeographer (z6''6-je-og'ra-fer), n. [izooge- 
Of or pertaining to a zone or zonule; zonary; "ous 1 
zoned.— 2. Inroo7.,speeifically,diffuse: applied polyps and the _st en tors among infusorians. 
green coloring matt<'r, which are found in va 
rious low invertebrates, as the hydras among 
ogi-(ij)li-y + -<^cl.] One who studies the geo- 
graphical distribution of animals, or is versed 
in zoogeography. 
to a diffuse form of placenta. See zonary. 
The zonular type of a placenta. Dana. 
Zonular cataract, a form of cataract, occurring usually 
in young children, in which the opacity is situated be- 
tween the cortex and the nucleus of the lens. 
zonule (zo'nul), H. [< L. zonnlfi, dim. of zona, 
girdle : see zone] A little zone, belt, or band ; 
a zonula — Zonule of Zinn, the suspensory ligament 
of the crystalline lens of the eye. .See under »{utpenwny. 
ZOnulet (zo'nu-let), «. [< zonule + -et.] A 
little zone or girdle. 
That ri)>and 'bout my Julia's waste, 
. . . that zonulet of love. 
Herrick, Upon Julia's Riband. 
zonure (zo'nur), H. [<.NJj. Ziiniirm.] Any liz- 
ard of the genus Zonuni.i in a broad sense, or of 
the family Zonuridx: as. the rough-tailed zo- 
nure, Zonurns cordylH.f. 
Zonuridae (z6-nii'ri-<le). «. pi. [NL., < Zonurus 
+ -idie.] A South African and .Madagascar 
familyof agamoideriglossate lacertilians, with 
cnicifonn interclavicles, short, simple tongue. 
and roofed-over suprateniporal fossro. typified 
by the genus Zonnrnt. The family was formerly much 
more loosely characterize<l, and then contained various 
forms from dilferent parts of the world, which have since 
been separated as types of other families. 
Zonurinae (zo-nu-ri'ne), n. pi. [NL., < Zonuru.H 
+ -inse.] A subfamily of Zonnridse, coutain- 
It is therefore . . . the business of the zoorieographer, 
who wishes to arrive at the truth, to ascertain whatgioups 
of animals are wanting in any particular locality. 
Enciic Brit., III. 788. 
[NL., < Gr. CCmv, animal. + kvtoc^, cavity.] The 
common gelatinous matrix or support of certain 
compound or colonial infusorians, composed of 
a substance secreted by and containing the in- 
dividual animalcules ; an infusorial syncytium ; 
a zoothecium. Compare ~0(>V?f«rfn'«m. See cut 
under /ijii.ityli,i. 
ZOOdendrial (zo-o-den'dri-al), a. [< zooden- 
dri-um + -al] Of the nature of or pertaining 
to a zoodendrium. 
ZOOdendrium (z6-o-den'dri-um), 11. : pi. zooden- 
dria (-a). [NL.,<Gr. Cipoi', animal, + dhipov, 
tree.] The zoocytium or zoothecium of certain 
infusorians, which is much branched or of ar- 
borescent foiin. W. S. Kent. See cut under 
Kpi-'ityli'i. 
ZOOdynamic (zo'o-di-nam'ik), /I. [< Gr. Cum: 
animal, + (hva/iiKd;, dynamic: see dynamic] 
ing normally lacertiform species with well-de- Of or pcrtnining to zoodynamies. 
veloped limbs, and incbuling the greater part ZOodynamics (zo'o-dT-nam'iks), n. [PI. otzoo- 
of the family: distinguished from Chaniie.iau- dynamic {nee -ir.i)^] The dynamics of the ani 
ring;. 
Zonurus (zo-uii'rus), n. 
Compare zoiixanthella 
ZOOCyst (zo'o-sist), n. [< tir. CCtor, animal, + 
kIcti^, bladder.] A cyst, formed by various pro- 
tozoans and protophytes, whose contents break 
up into many germinal granules or spores ; a ZOOgeographic (zo-o-je-o-grafik), a. [< zoo- 
kmd of sporocyst. gengraph-y + -ic] (jf or pertaining to zoogeog- 
ZOOCystic (zo-o-sis'tik), a. [< zoocy.it + -ic] raphy ; faunistic ; chorological. 
Pertaining to or of the nature of a zoocyst. ZOOgeographical (z6-o-je-o-graf'i-kal), a. [< 
ZOOCytial (z6-o-sit'i-al). a. [< zoocytium + -al.] zoligcoiirophic + -al.] Same as zoogcogrnpliic 
Pertaining to'or of the nature of ii zoocytium. zoogeography (zo o-je-og'ra-fi). n. [< Gr. f^v, 
zoocytium (zo-o-sit'i-um), «. ; pi. zoiicytia (-a), animal, + E. geography.] '1'he science or the 
"' .... . _ _., description of the distribution of animals on 
the surface of the globe ; faunal or faunistic 
zoology ; animal chorology : correlated with 
phytogrography. This is an important branch of zo- 
ology, of much intrinsic interest in several respects, and 
of special significance in its he.nring upon the questions 
of the origin of species and their niodiflcatioii under cli- 
matic and other physical conditions of environment. It has 
been nmch studied of late yeai-s. with the result of map- 
ping the land-surface of tlie globe into several major and 
numerous minor areas, which can be bounded and graphi- 
cally represented in colors with almost the iirecision at- 
tained ill depicting civil or political boundaries. ZoOge- 
ograpliy is related to paleontology as the distribution of 
animals in space is related to their succession in time ; 
but the principles of zoogeography are of course as appli- 
caiile to any former as to the present dispersion of species 
on the face of the globe. See province, t>, and regim), 7. 
ZOOgloea (zo-o-gle'ii), «. ; pi. zoiiglaie (-e). 
[NL., < Gr. C^ov, animal, + ;?o;of, a sticky sub- 
stance.] 1. A peculiar colony o{ Schizamycetes 
in which they form a jelly-like mass by the swell- 
ing up of their cell-membranes, it was formerly 
regarded as a distinct genus, but is now known to be a 
mal body; the science of the vital powers of kind of resting stage in wliicli the various diments are 
[NL. (Merrera), < Gr. animals; animal physiology, as a branch of 8'i,ed '"Kether by tlieir greatly sw..iien and diffluent cell- 
f6v,, a belt, zone, + oipl, tail.] The typical biology: correlated with zSiphy>Hcs. Ztl suro'l'^eSl'^orthc jJ^eZlT""' '" "" "''■ 
