﻿Plate 26 

 Golfingia inacginiliei, new species 



1, Holotype; X 3. The introvert is invaginated; right nephridium bent 



forward. The contractile vessel and villi hide esophagus, which is shown 

 at right before entering intestinal spiral, only four coils of which are indi- 

 cated. 



2, Oral end of a double row of tentacles; X 50. 



3, Holotype; X 1. 



4, A dermal papilla from near end of bod}'; X 200. 



5, Part of a cluster of Polian villi, X 50, and, above, the tip of one of the branches, 



flattened under a cover slip; X 200. 



6, Top of intestinal spiral and the rectum to show Polian villi distended with 



corpuscles. Fixing muscle F^ is attached to esophagus. 

 C, coecum; CV, contractile vessel; f , F'^, fixing muscles; /, introvert; IS, intestinal 

 spiral; M, eight short diagonal bands of muscle; S, spindle muscle; T, ten- 

 tacles showing through thin skin; V, Polian villi along each side of contractile 

 vessel. 



Plate 27 



1, Dendrostomum pyroides Chamberlin: A robust specimen from life; dorsal side; 



XI. I, a, same; skin from introvert showing hooks; X 25. 1, 6, Same; a 

 hook; X 50. 



2, Dendroslomum pyroides; lateral view of preserved specimen, showing character- 



istic curvature of body; X 1. 



3, Dendrostoynum pcrimeces Fisher; lateral view of preserved specimen; X 0.75. 



3, a. Skin from introvert just anterior to anus, showing the brown papillae; 

 X65. 



445 



