HILGARD—ORGANOTAXIS. 421 
the Cat-fish and White Perch (Corvina oscula, Les.) to trans- 
form their lower halves into a thyreoid, the upper capitula, etc., 
into arytenoid bodies, in the latter, of great thickness, and 
paved with depressed globular teeth, - a sort of faucal forge, 
squeezing the contents down the let, which is the i Teed 
diate anenion of the branchial (or pharyngeal) cavi 
al development into a blade (rib, aha 
well as fulcral extremital ditnents: It is an individual tri- 
nal Sse development of farther accessories, a whorl 
of itself, as it were, and sometimes it seems reduced to fewer 
(1 or 2 elements (all of which are typical organotactic num- 
Moccane’ the branchial, hemal and spinal arches eae 
offer this uniform structure: two frequently tripodal flank 
blades, or ribs; one sternal element, ray, or spinal crest- 
cle. The ) a a 
the ensiform lateral ores of fish as in 
oe ig are the retrorse eer of 
Now sig account fo for three collateral stort gata oa aposted 
i: ‘the axis, or forming the same. 
Fi bilateral or poy we labiate pergonate spurred, type 
ao > on ay ycle be from the axis, 
Paha sense of ape Figg ig the al (calyx, corolla, an- 
it seed), holding an alternate position to each other, 
Pe nem this osseous fabric (exclusive of extremities) like- 
lige a column or tree of vortices, snr oe 
neural ee an ee vise i 
en ae 9 ei at 
. | - ‘Frorar Crcrosis Frve-row. 
Bete: floral eycles above mentioned cme: he func- 
carn Common with animal structures: the calycine, or 
epigynous font, the flesh-lobes are digital, an 
