PLATE 7. 



Feedesicblla regina Leidy, Mss. 



Pig. K* One colony, life size, with all the branches attached. (Gor- 

 ham, Me.) 



Fig, 2. Two branches of one colony : one attached and one free. 

 (Cambridge, Mass.) 



Fig. 3. Attached branch of one colony. (Gorham, Me.) 



Fig. 4. Magnified view of one adult zooid. (Norway, Me.) D, ecto- 

 cyst ; E, endocyst ; V, funiculus ; M, gastric retractors ; M', lophophoric 

 retractors; M", brachial retractors; N, anterior retentors ; N\ posterior 

 retentors ; F, brachial collar; G, calyx ; H, tentacles. 



Fig. 5. t Section of a young specimen, showing the internal structure 

 and the limited extent of the invaginated fold. (Cambridge, Mass.) D, ecto- 

 cyst ; E, endocyst ; B, invaginated fold ; Y, bud ; N, anterior retentors ; K 

 oesophagus; H", cilia; K'", oesophagal valve; K', stomach; K"", posi- 

 tion of intestinal valve ; K ", intestine ; K, anus ; I, lophophore ; I ', epis- 

 tome; I", mouth; H, tentacles; F, brachial collar; S, nerve mass. 



Fig. 6.} Lateral view of an invaginated specimen, showing the shape of 

 the ccenoecial orifice, A "", orifice ; L, region of the sphincter ; D, ecto- 

 cyst ; E, endocyst. 



Fig. 7. View of the same from above* 



Fig. 8. Front view of a zooid, showing the incipient arms and the rela- 

 tive positions of the muscles. M ', lophophoric retractors ; M ", brachial re- 

 tractors ; I ', epistome. 



*This figure was drawn and presented to me by Mr. Mcrse. 



tThis figure is part of a study drawing made by Prof. H. J. Clark, and oblig- 

 ingly placed at my disposal by him. 



JAil figures with no locality mentioned must be referred to the habitat 

 (last named ; thus in PI. 7, Figs. 6, 7 and 8 are all from the same locality as Fig, 5. 



