590 EEPOKT OF COMMISSIONER OF FISH AND FISHERIES. 



Length up to 49 mm when extended ; breadth, including setae, 3 mm . 



Wood's Hole, among eel-grass and at the surface, very abundant, 

 especially at night, in July and August ; also under stones, between 

 tides. 



Atjtolytus cornutus A. Agassiz. PI. XIII, figs. 65, 66. (p. 397.) 



Journal Boston Society of Natural History, vol. vii, p. 392, Plates 9-11, 1863. ' 

 Great Egg Harbor, New Jersey ; New Haven ; Watch Hill ; Vineyard 

 Sound; Massachusetts Bay ; Eastport, Maine. Low-water mark to 15 

 fathoms. 



AiTTOLYTUs, species undetermined, (p. 398.) 



Off New Haven, 4 to 6 fathoms, shelly, among hydroids. 



Atjtolytus, species undetermined. 



Females, filled with eggs, of a large species of this genus were taken 

 at the surface of Vineyard Sound, April 30, by Mr. V. 1ST. Edwards. 

 These were about 40 mm in length, as preserved in alcohol, and rather 

 stout, tapering to each end. The head is small, short, rounded in front. 

 The eyes are small, and the two pairs are near together. The odd 

 median antenna is more than twice as long as the breadth of the head; 

 the lateral ones are about half as long ; the first six setigerons segments 

 have short setae; the following ones have a fascicle of long, slender ones, 

 equal to the breadth of the body. 



Syllis, species undetermined, (p. 453.) 



A single specimen from Vineyard Sound. The body is about 12 mm 

 long; the antennae are not very long; the palpi short; the dorsal cirri 

 are rather long, and, like the antennae, regularly beaded ; the ventral 

 cirri are small, tapering; the setae are numerous, rather short. 



Gattiola, species undetermined, (p. 453.) 



Young specimens were taken several times in Vineyard Sound, at the 

 surface. Adult specimens of a fine species of this genus were dredged 

 in the Bay of Eundy in 1872, in 80 fathoms. 



Nereis virens Sars. PI. XI, figs. 47-50. (p. 317.) 



Beskrivelser og lakttagelser, etc., p. 53, PL 10, fig. 27, a, b, c, 1835 (t. Malmgren). 

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

 Nereis Yanltiana Quatrefages, Hist, des Anueles, i, p. 553, PI.. 17, figs. 7, 8 

 1865; Alitta virens Malmgren, op. cit., p. 183; Aunulata polyclueta, p. 56, PI. 

 3, figs. 19, A-E, 1867. 



New Haven, at low water; Watch Hill; Vineyard Sound ; Massachu- 

 setts Bay; Eastport, Maine; northward to Labrador. Northern coasts 

 of Europe to Great Britain. 



Neheis limbata Ehlers. PI. XI, fig. 51. (p. 318.) 



Die Borstenwiirnier, vol. i, p. 567, 1868. 

 Charleston, South Carolina, to Massachusetts Bay; halt-tide mark to 

 4 to 6 fathoms in Lone' Island Sound. 



