SWI- 
swimmerets, — paired appendages 
posterior to the walking-legs of 
a Severe functional partly for 
swimmin reer 
swimming lls, — nectocalyces : 
medusoid bell - like — of 
Siphonophores_ wit an 
radiating canals, serving ns raged 
the colony (zoo/. 
wimming or swim bladder,—the 
air bladder of Fishes, developed as 
a diverticulum e alimentary 
canal, — function precisely 
determined (zoo/. 
not 
swimming funnel 1,—the tube of Di- 
penachiates through which water is 
— rom the mantle cavity, 
expulsion once g the means of 
propulsion (z00/.). 
swimming ovaries,—groups of ripe 
ova of Acanthocephala detached 
and floating freely in the body 
parity (zool.). 
swimming plates,—in Ctenophores, 
eight equidistant bands of ciliated 
s, two plants, 
or plant and animal, ive in —? 
= partnership 
biot: 
ppinbiotia "(stro a. . sym 
bioun, to live together.] Living in 
beneficial ee as Clione, 
Dromia 
symm: 
array (sim — @, 2 1m. 
syn, with; measure. | 
Paruiaty sha ina " divaible into 
exactly similar halves (diol.). 
dorsoventral, 
See bilateral and aint 
ry (dzo/.). 
sympa: chetie (sim pathét’ ik) a. [Gk. 
syn, with ; pathos, feeling.] Appl. 
317 
SYN- 
the system of nerves supplying the 
blood - vessels, 
with 
pea oe form 
of petals 
symphily Sak li) 2. [Gk. sym, with ; 
philein, to love.] Commensalism 
with mutual aati = ). 
har So 
a igueuce ts mophy llou 
mphyogenesis (sim‘fidjén’ resis) n. 
TGk. symphyesthain, to —_ to- 
descent.] De- 
area fen the 
other: 
symphysial (simft iz "l) a. 
a growing together. 
symphysian ; 
re ue 
Sym 
pi 
sym 
ctr wn 2 (sim’fi sis) #. [Gk 
a Deny together. ] The 
tion of two pieces of 
onan . ear ap eae i 
piles amerare 
pr SS “simplek tik) it. - ym 
rage plaited.] 
af ‘the & skull between aot ined 
and hyomandibular ( (zool.). 
sym po'dial) es [ok SV ily 
with ; a t.] # or re- 
senibiiag’ a Piesras Bs in principle 
bot.). 
sympodite arms — a. [Gk § 
gion ; pous, foot.] The prkopoaite 
of Crustacea eon oh 
um (simpdo‘diii k 
(60 ) 
— pec mé) #. [Gk. sy, with ; 
m e.] Condition when 
synangi I . 3 
with ; anggeion, a vessel. ] com- 
pound sporangium in which the 
a i 
sporangia are coherent, as in some 
Ferns (40¢.). 
