PLATE 8. 
1-5. Echinonéus cyclostomus LEske. 
1.— Intestine in place, seen from below. Specimen measuring 26 mm. long. = 
2.— Reproductive organs and alimentary canal, seen from above, free of its test, which meas u 
long. : 
3.— Alimentary canal, from actinal side. Pr 
4.— Abactinal loop of the alimentary canal. Reproductive organs removed. 
5.— Alimentary canal, actinal side. Intestinal appendage and part of actinal loop turn 
curve of abactinal loop to the anal system. 
The same specimen was used for figures 2-5. 
Port Antonio, Jamaica, H. L. Clark. 
