INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 591 



Nereis pelagioa Linn. PI. XI, figs. 52-55. (p. 319.) 



Systema natarse, ed. x, p. 654 ; ed. xii, p. 1086; Malmgren, Annulata polychseta 

 p. 47, PL 5, figs. 35, A-D, 1867 ; Ehlers, op. cit., p. 511, PI. 20, figs. 11-20, 1868; 

 Heteronereis grandifolia Malmgren, Nordiska Hafs-Annulater, p. 108, PI. 11, figs. 

 15, 16, B, B 1 , C ; Ann. polychteta, p. 60, PI. 5, figs. 31, A-D ; Heteronereis arctica 

 OErsted, Greenland's Annul, dorsibr., p. 27, PI. 4, figs. 50*, 51, 60, PI. 5, figs. 65, 68 

 70*, male (t. Ehlers) ; Heteronereis assimilis ffirsted, op. cit., p. 28, PI. 4, figs. 

 54, 61, PL 5, fig. 72, female (t. Ehlers). 



Off New Haven ; Watch Hill ; Vineyard Sound ; northward to Labra- 

 dor. Greenland ; Iceland ; Spitsbergen ; northern coasts of Europe to 

 Great Britain. In the Bay of F'nndy from low-water mark to -106 

 fathoms, common. 



Nereis fucata And. and Edwards, (p. 491.) 



Histoire nat. litt. de la France, vol. ii, p. 188 (teste Malmgren) ; Lycoris fucata 

 Savigny, Syst. des Annelides, p. 31, 1820 (t. Ehlers) ; Descr. de l'Egypte, ed. 

 2, xxi, p. 357 (t. Malmgren) ; Nereilepas fucata Malmgren, Annulata pblychseta, 

 p. 53, PL 3, figs. 18-18 E ; Johnston, Catalogue, p. 158, fig. 30, 1865. Hetero- 

 nereis glaucojris Malmgren, Nordiska Hafs-Annulater, Ofvers. af Kongl. Vet. 

 Akad. Forh., 1865, p. 181, PL 11, figs. 16, 16 A; Annulata polyehaeta, p. 60, PL 

 4, figs. 26, 27, 1867. Nereis fucata Ehlers, Borsten-sviirmer, vol. i, p. 546, PL 21, 

 figs. 41-44. . 



A specimen was dredged at Watch Hill, Bhode Island, in 4 to 6 fath- 

 oms, among rocks and algae, which agrees well with Malmgren's descrip- 

 tion and figure of Heteronereis gJaucopis. Ehlers regards the latter as 

 the heteronereis-form of N. fucata. 



Nereis, species undetermined. 



Head sub-conical ; antennas small, slender ; palpi small, shorter, and 

 thicker; two upper pairs of tentacular cirri moderately elongated, sub- 

 equal, lower ones very small. Posterior eyes elongated and on the upper 

 side of the head; anterior pair small, lateral. Eeet terminated by four 

 small papillae; dorsal and ventral cirri small, slender. 



The only specimen observed is preserved in alcohol ; it is a female 

 filled with eggs. Vineyard Sound, 6 to 8 fathoms. 



Nectonereis Verrill, genus nov. 



Head prominent, depressed, oval, rounded in front, bearing two pairs 

 of large eyes on the upper and lateral surfaces, and a pair of small 

 antennae beneath; palpi small or rudimentary. Tentacular cirri four on 

 each side, as in Nereis. Proboscis small, similar to that of Nereis, but 

 more simple; furnished with a pair of terminal hooks ; with two anterior 

 clusters of denticles on the upper side, and with five small clusters be- 

 low, in a riug extending nearly half-way around it. Anterior part of 

 body fusiform, consisting of about fourteen segments, on which the feet 

 are divided into small, rounded lobes, with small ventral cirri; and with 

 long dorsal cirri, those on the first seven segments swollen and gibbous 

 toward the end, with a small acute terminal portion. Posterior part of 



