of the Virginian Coast, 



245 



Fam. GLYCERID^. 



RHYNCHOBOLUS Clpd. 



Rhynchobolus Americanus VerrilL 



Glycera Americana Leidy. Mar. Invert. Fauna R. I. & N. J., p. 15, pi. xi, 

 figs. 49, 50. 



" *' Ehx,eks. Borstenwiirmer, p. 668, pi. xxiii, figs. 43-46. 



" " Grube. Jahres-Bericht der Scliles. Gesell. fiir vater- 



lan. Cultur, p. 64. 1869. 

 Rhynchobolus Americanus Verr. Invert. An. Vin. Sound, p. 596 pi, x. 



figs. 45, 46. 



Common. Low water and dredgings. 



Rhynchobolus dibranchiatus VerrilL 



Qlycera dibranchiata Ehlers. Op. cit., p. 670, pi. xxiv, figs. 1, 10-28. 



Grube. Op. cit., p. 64. 1869. 

 Rhynchabolus dibranchiatus Verrill. Op. cit., p. 596, pi. x, figs. 43, 44. 



Fam. CHLOR^MID^. 



TROPHONIA (Jf. m.) Clpd. 



Trophonia arenosa n. sp. 



PL. VII, FIGS. 92-97. 



Body elongated, widest at about the 22d segment, 

 tapering gradually in both directions ; in front nearly 

 quadrangular, the sides being straight, and the dorsal and 

 ventral surface but slightly convex ; after the first 10-12 

 segments the body is rounded. 



Branchiae very numerous, filiform, red at base, green 

 externally ; the inferior shorter than the superior. 



Setse of the first five segments turned forward ; elongated, 

 those of the first three reaching far beyond the branchiae. 

 Tentacles not quite as long as the branchiae, canaliculated, 

 margins scolloped ; color reddish-brown with a green 

 centre. Body above and below with numerous cylindrical 

 papillae, of which, in adult specimens there are five longi- 

 tudinal series — one median, with two on each side equally 

 Trans, ta;.] 32 



