139 



for the nerves. There are many polian vesicles and two to three 

 large madreporic canals. The gonads are branched and the intestine 

 has a loop. The mesenteries are finely reticulated close to the 

 body-wall, and on this part the ciliated funnels are placed. 



The anchors (Fig. 10. 1) measure ca. 320 // in length by ca. 

 190 [i in width. The stock is branched and on the vertex there 

 are minute knobs. The anchor-plates are in this species usually 

 more or less abnormal, but even when the plates are so reduced 

 as the figured one (Fig. 10. 1) the anchors are of quite normal 

 size and shape. The normal plates (Fig. 10. 2) measure ca. 210 

 fi in length by ca. 150 ^ in width and are very like the plates in 

 lappa, the side-holes being large. The miliary granules are rosettes 

 which are found all over the skin and in the tentacles. In the 

 oral disk and in the tentacles there are curved rods with bushy 

 branched ends and a rough surface. The rods in the tentacles 

 (Fig. 8. 3) measure up to 280 /lv in length and those in the oral 

 disk (Fig. 8. 4) 140—180 fi in length. 



This species is easily recognized, as the malformation of the 

 anchor-plates probably is characteristic of it; but even if all the 

 plates may be normally shaped it cannot be confounded with other 

 species, as it is sufficiently characterized by the shape of the cal- 

 careous ring and the rods. 



Euapta magna n. sp. 



Hilo, Hawaii. 18.IV. 1915. Rock pools. 1 specimen. 



The specimen at hand measures 85 cm in length by ca. 3,5 

 cm in diameter. The colour is white with black spots on the dorsal 

 side. It has 15 tentacles and the digits are not united by a web. 

 On the oral disk there are eye-spots. The cartilaginous ring is 

 wanting. The calcareous ring (Fig. 9. 1) is green and on the 

 anterior edge there are low processes which are not united by a 

 membrane. All the pieces of the ring are regularly notched in the 

 posterior edge, and the radial ones are perforated for the nerves. 

 There are numerous polian vesicles and one large madreporic 

 canal. The gonads are branched and the intestine has a loop. The 

 mesenteries are as in godeffroyi reticulated close to the body-wall 

 and the ciliated funnels are confined to the reticulated part. 



The anchors (Fig. 10. 3) measure ca. 330 ^ in length by ca. 



