18 
has yet other anchors, and that 7. pallida is a variety of G. globus }). 
The presence of spinulate spicules must in every case be a „con- 
ditio sine qua non’ for T. pallida. In the var. & they are very 
abundant, in the var. 8 they are present, but fewer in number. I 
have figured the tr°. ac. on Plate II. fig. 26. In fig. 25 the head 
is not very distinct and nearly tr. ac. (acuate). 
3° M. ta. @= 90° (expando-ternate). They are rather abundant; 
the teeth are straight (fig. 24) or more or less bent upwards (fig. 
35 ) or geniculated downwards (fig. 21). Often the teeth are very 
short and blunt {fig. 36). The manubrium ends sharply, and is 
5—6 times longer than the teeth. 
4°M.ta®< 90° are few in the var. 2, very abundant in the 
var. 8. The manubrium is longer and thinner than the M. of the 
M.ta®= 90° as is to be seen in comparing the figg. 34 and 23. 
5° M.ta.d.bif. are rarely found in both varieties. In every case 
the d’ are shorter than the d; often not all the d’s are bifurcated 
but only one or two. So it seems that / pallida is a transitory 
variety (as Haeckel says) between those forms with distinet bifur- 
cated anchors and those which destitute it. Ceteris paribus I should 
not like to make species form specimens which have them and 
which are without. 
6° gl. The globules (ovaria” of Bowerbank) are of the common 
shape. It seems that within the family of the Geodidae there is 
but very little difference in the shape of these globules. Nearly 
almost they are ellipsoidical, and more or less flattened. 
7° st. (sp). There are two kinds of stellates; the radii of the 
larger ones are a little thorned (fig. 37 Pl. Il.) This is however 
only to be seen with a rather great power; at less Zeiss D. I could 
not observe these spines upon the radii of the small stellates. Both 
are very frequent in the var. 8, but not so plenty in var. «. 
8° glst. Between the stellate spicules there are many sphero- 
steillate ones; they have the same diameter as the small st. I am 
]) viz. Geodia globus Schmidt; after Schmidt’s description this Geodia be- 
longs to Sollas’ Genus /sops. 
