ACALEPHA5. 
221 
^ese very enigmatical beings were worthy of serious study— the 
at ’idy of subsequent naturalists, such as Cuvier, De Blainville, 
^hrenberg, Brandt, Makel-Eschscholtz, Sars, Milne Edwards, Forbes, 
^ os *e, and other modern naturalists, who have demonstrated what 
T ’chness of structure is concealed under this gelatiniform and simple 
s Wture in the Medusae ; at the same time they have revealed to us 
11J ost mysterious and incredible facts as connected with their meta- 
^phoses. 
Among the Medusae proper, the most common are Aurelia, Pelagia, 
atl d Chrysaora. In the latter, G. Gaudichaudi (big. 88), the disk 
18 hemispherical, festooned with numerous tentacles, attached to a 
s ' lt 'like stomach, opening by a single orifice in the centre oi the 
Peduncle, with four long, furbelowed, unfringed arms. Gaudi- 
ehaudi’s Chrysaora is found round the Falkland Islands. The disk 
, J1| Us a regular half-sphere, very smooth, and perfectly concave, form- 
a sort of canopy in the shape of a vault. The circle which sui- 
^nds it is divided into sections by means of vertical linos, regularly 
divided, of a reddish brown colour, which forms an edging to the 
^ubrella-like disk. Twelve broad regular festoons form this edging. 
, roi u the summit of these lobes issue twelve bundles of very long, 
capillary tentacles, of a bright red. The peduncle is broad 
j d ^t, perforated in the middle, to which are attached four broad 
'aceous arms. 
Khizostoma. 
I Mednsse which bear the name of Iihizostoma have the disk 
spherically festooned, depressed, without marginal tentacles, pe- 
■ l ^ e divided into four pairs of arms, forked, and dentated almost to 
jy. ( ld y> each having at their base two toothed auricles. Such is 
* io *toina Cuvieri of Peron (Fig. 89), the disk of which is of a bluish- 
P like the arms, and of a rich violet over its circumference. This 
^tiful zoophyte is found plentifully in the Atlantic, living in flocks, 
1,(; h attain a great size. It is common in the month of June on the 
tl!? 63 ^ le Saint Onge ; in August on the English coast ; and along 
q 16 stra nd of every port in the Channel they are seen in the month of 
on °^ r in thousands, where they lie high and dry upon the shore 
^uich they have been thrown by the force of the winds. 
