X.-THE ANNELIDA CH^ETOPODA FROM PROVINCETOWN AND 

 WELLFLEET, MASS. 



By Prof. H. E. Webster and James E. Benedict. 



The annelids on whicli this paper is based were collected from June 

 to September, 1879, by tlie Summer Zoological Expedition of Union 

 College. Of the 90 species found, by far the greater number live 

 between tides. Not much dredging was done, and none at a greater 

 depth than thirty fathoms. Two visits to Wellfleet procured a number 

 of forms not found at Provincetown. Three genera and sixteen species 

 are described as new. Of the genera, Thaumastoma seems not to be- 

 long to any described family. Eighteen species have their northern 

 limit extended, having been previously found only to the south of the 

 Cape. Nerilla antennata Schmidt and Trichohranclius glacialis Malm- 

 gren are European forms not previously found on our coast. Syllides 

 Oilrsted is also new to our coast, and is represented by a new species. 

 Capitella capifata has not previously been reported from the United 

 States, though found further north. The figures, except figs. 95 — 97, 

 were made by H. E. Webster. 



Family APHRODITID^. 



APHEODITA (Linn.) Kinherg. 



Apheodita aculeata Linn. 



Aphrodlta aculeata Linn. Systeina Natune, ed. xii, vol. i, p. 1084. 1767. 

 KiNBERG. Eugeuies Eeaa, p. 3, pi. i, fig. 2. 1857. 

 Selenka. Das Geflisssysteni der Aplirodita aculeata, ex Nieder- 



liindisches Arcliiv fiir Zoologie, pis. iii-iv. 187.3. 

 Verrill. Invertebrate auimals of Vineyard Sound, in Report of 



U. S. Commissioner of Fish and Fisheries, Part i, p. 580. 1874. 



No large specimens were taken; 20 to 28 fathoms, sand and shells. 



Family POLYNOID^. 



LEPIDONOTUS {Leach) Kinherg. 



Lepldonotus squamatus Kinherg. 



Lepidonote armadillo Leidy. Marine Invert. Fauna, R. I. and N. J., Ex. Jour. Phila. 



Acad., series ii, vol. iii, p. 16, pi. xi, fig. 54. 1855. 

 Lepidonoius squamatus Knbg. Fregatten Eugenics Eesa. Zoologi, Annulata, p. 13, 

 pi. XV, fig. 15. 1857. 

 [1] 699 



