[19] ANNELIDS OF PROVINCETOWN, MASS. T17 



The body is widest in tlie middle ; the length and width of the median 

 segments are about equal ; length of the anterior segments much less 

 than the width. 



Body gray or flesh color. According to the notes made on the living 

 forms, one specimen had dark red eyes; another black eyes. 



Length of largest specimen, T"""". 



Number of segments, 44. 



In confinement very sluggish, not at all inclined to move about. 



From low water to 25 fathoms ; sand and shells. 



AUTOLYTUS (Gruhe) Marentzeller. 



AUTOLYTUS COKNUTUS A. Agassiz. 



A. Agassiz. Journal Boston Society Nat. Hist., vol. vii, p. 392, plates 9-11. 1863. 

 Verrill. Invert. Animals of Vin. Snd., etc., p. 590, pl.xii, figs. 65, 66. 1874. 



Wellfleet, low water, in sand. 

 Provincetown, 25 fathoms, sand and shells. 

 Not common. 



NERILLA Schmidt. 



(Family not determined.) 



Neeilla antennata Schmidt. 



Nerilla antennata Schmidt. Reise nacb der Faror, p. 38, pi. iii, figs. 8, 8a. 1848. 



Grube. Fam. der Ann., p. 62. 1856. 



Clapar£:de. Beobachtungen, etc., p. 48, pi. xii, figs. 16-20. 1863. 

 Dujardinia antennata Quatrefages. Hist. Nat. des Annel68, vol. iii, p. 69. 1865. 



We found this species quite abundant in sand at low water. It is 

 unquestionably Schmidt's species. 



Famity NEREIDS. 

 NEREIS (L.) Guvier. 

 Nereis virens Sars. 



Nereis virens Sars. Beskrivelser og Jagttagelser, p. 58, pi. 10, fig. 27. 1835. 

 Nereis grandis Stimpson. Marine Invertebrata of Grand Manan, p. 34, fig. 24. 1853. 

 Nereis Yanlciana Quatrefages. Histoire des Anne]6s, vol. 1, p. 153, pi. 17, figs. 7-8. 



1865. 

 Atitta virens Klnberg. Annulata Nova, p. 172. 1865. 



Malmgrex. Nordiska Hafs-Annulater, p. 183, et Annulata Polychaeta, 

 p. 56, pi. iii, fig. 19. 1867. 

 Nereis virens Ehlers. Borstenwiirmer, p. .559, pi. xxii, figs. 29-32. 1868. 



Verrill. Invert. Animals of Vineyard Sound, p. 590, pi. xi, figs. 47-50. 



1874. 

 Webster. Annel. Chset. of the Virginian Coast, p. 235. 1879. 

 TuRNBULL. Anatomy and Habits of. Trans. Connecticut Academy, vol. 

 iii. 1865. 



