naoulun th re is aone corventi- n umd aa *.© the a ocus v-vi nails 
and %ho li: assent, 4 o show the cavity in the ,'uccug curro'cndin^ 
the r uberrmcultm ligAK-.? t. Tn nuch rec-n trueti n it w& im¬ 
possible to sfho* ho* they joined the cord in either "aloe or 
females* In all c sas the also relatio .s o r *r. age structures 
are to tne sa:' : e scale, a© distortions dm to faulty p ition 
in rea^esits ar net corrected* In cacaa rners a part c a struc¬ 
ture i« ;is«octed e«uy or injures by accident that structure is 
£ ? 
I . 0 - fe ale and 20# j co* .ale, represent ...ifror of the 
org.-Mn, an to lat r *1 icplac.:aent, so that th organa f • he left 
side appear beyond tne iucto whereas they are rc-liy nearer and 
would cover ther* the duct) are represente: a cut by -ajia 
vertical Ion itudin.*l section t? rod... h ti.vir tire length, but 
in oases ^fcare the lu ?n leas in 4iabater than the true’cnees 
of a lin t th: c 1 a- o ' th ■ , ri r issai drawing the duct ap r w?3 
solid. Co the drawings aact not be taken a n ofc.-.v lute guide a to 
pr seme of absence o-' lessen. 
In ttio ca u o“ edbryoe lass than 5*1 c . forehead** al length 
the notochord waa v oi m raf rs c line, the anterior pot of 
-ach irawin , V^cause t a rectum sake a ventral loop near the 
p. f terior and of the somaepbro. • Cooo ;-li fc ht ui-tort .r.n ay be 
to twi tin of ecti a a ittlo in counting aiv.s iu: t i t&isan 
into con. ia ration in a critic . , sx-ainutior. of the 
