276 



branches are twined. Some few of the funnels have more than 

 two branches. 



The calcareous deposits are all distinctly attacked by acidity in 

 the preserving fluid, and the total wanting of miliary granules may 

 be due to dissolution. The anchors (Fig. 54. 2) measure 350 — 400 p 

 in length and 200 — 250 fi in width. They are rather regular. The 



Fig. 54. Protankyra ramiurna. 1 Ciliated funnels X 90. 2—3 anchor and 



plate X 160. 



arms are serrate, and the rather large handle is spiny. The anchor- 

 plates (Fig. 54. 3) measure 270 — 300 fi in length and 200 — 250 fi 

 in width. There are only few, large holes, the margin of which 

 is distinctly dented, and the outline of the plates is rather incom- 

 plete. The articulation with the anchors is well developed, but a 

 real bridge does not occur. 



Pr. ramiurna must, in spite of the rather unsatisfactory material 

 at hand, be regarded as a well characterized species, easily recog- 

 nized by the shape of the anchors, the anchor-plates and the 

 ciliated funnels. In the shape of the ciliated funnels it faintly 

 resembles Pr. asymmetrica, but judging from the shape of the cal- 

 careous deposits, the two species cannot be regarded as more 

 nearly related. 



