[37] ANNELIDS OF PROVINCETOWN, MASS. 735 



of body plain yellowish-green or olive green. Branchiae greenish, or 

 yellowish, or flesh-color with bright red blood vessels showing through. 



Length of largest specimen, 75™°^. 



Tube formed of coarse sand. 



Found at Well fleet in sand at low water. 



Not common. 



PiSTA PAIMATA. 



(PL. VII, Fig. 79.) 



Sdonopsis palmata Verrill. Invert. Animals of Vin. Sound, p. 614. 1874. 

 Scionopsis pahnata Webster. Annel. Chaet. of the Virginia Coast, p. 262, 1879. Of 

 New Jersey, p. 128. 1880. 



Found sparingly at low water. 



The considerations that lead us to unite this form to Pista have been 

 stated above. 



TRICHOBRANCHUS Malmgren. 



Trichobranchus ! GLACiALis Malmgren. 



Nord. Hafs-Ann., p. 395, pi. xxiv, fig. 65. 1865.— Ann. Polycht., p. 220. 1867. 



We found but one specimen of this genus, and that without branchiae, 

 and otherwise much injured. Depending mainly on the setae, we refer 

 it with some doubt to Malnjgren's species. 



Sand; low water. 



POLYCIRRUS Orube. 



PoLYCiRRUS EXiMius Verrill. 



Torqut% eximea Leidy. Marine Invert. Fauna'of R.I. and N. J., p. 14, pi. xi, 51, 52. 



1855. 

 Pohjcirru8 ex^viiua Verrill. Invert. An. Vin. Sound, etc., p. 616, pi. xri, /. 85, 1879. 



Webster. Annel. Chaet. of the Virginian Coast, p. 263, 1879. Of 

 New Jersey, p. 128. 1880. 



ENOPLOBRANCHUS Verrill. 

 Enoplobranchus sanguineus Verrill. 



Chcctoiranchus sanguineus Ykrihi,!,. Op. cit., p. 616, 1874. ' 



Enoplobranchus sanguineus Verrill. Check-list (advance sheets). 



Webster. Annel. Chjet. of the Virginia Coast, p. 263. 1879. 



Found only at Wellfleet. Sandy mud; low water; abundant. 

 Family SABELLID^. 

 SABELLA {L.) Malmgren. 

 Sabella microphthalma Verrill. 



Verrill. Invert. Animals of Vin. Sound, p. 618. 1874. 



Webster. Annel. Chaet. of the Virginian Coast, p. 275. 1879. Of New Jersey, p. 

 128. 1880. 



Not common. Found at low water. 



