137 



in length by ca. 170 fi in width. Their shape is rather constant 

 and the side-holes are large. The miliary granules are rosettes 

 and in both the oral disk and the tentacles there are curved rods. 

 These have a distinctly rough surface and bushy-branched ends. 

 The tentacle-rods (Fig. 8. 1) are the largest, measuring 150 — 250 fi 



Fig. 9. Pieces of the calcareous ring in Euapta magna 1, 

 Euapla godeffroyi 2, Euapta tobagoensis 3 and 

 Euapta lappa 4. X 6. 



in length. The oral rods (Fig. 8. 2) do not measure more than 

 80—150 ^ in length. 



Euapta lappa is distinctly characterized by the shape of the 

 rods, the calcareous ring and the anchor-plates, and is by these 

 characters easily separated from the four other species of the genus. 

 Whether it occurs in other localities than the West-Indies is not 

 known with certainty. 



Euapta godeffroyi (Semper). 



Synapta godeffroyi. Semper. 1868. Die Holothurien, p. 231 PI. 39 f. 13. 

 Euapta godeffroyi. 0stergren. 1898. Das System der Synaptiden, p. 1 13. 

 Euapta godeffroyi. Clark. 1908. The Apodous Holothurians, pag. 72. 



— 1924. The Synaptinae, pag. 462 Pl. I fig. 1—4. 

 Hilo. Hawaii. IV. 1915. 5 specimens. 



The specimens at hand measure from 25 cm to 40 cm in length, 

 and their colour is yellow with brown stripes and spots. They have 

 15 tentacles, and the digits are united by a web. On the oral disk 

 there are eye-spots. The cartilaginous ring is wanting and the 

 calcareous ring is green. The radial pieces (Fig. 9. 2) are perforated 



