299 



the cirrus ; a single strong black spine supports the setigerous lobe. 

 The lower ramus has a rounded setigerous lobe, and a large broadly- 

 rounded lamelliform process, nearly as long as the longest one of the 

 upper ramus and much broader ; the setigerous lobe bears a broad fan- 

 shaped fascicle of compound setae, similar to those of the upper ramus, 

 but a little shorter, and a single black basal spine; the ventral cirrus 

 is slender, and there is a broad, rounded ventral lamella at its base. 

 The setae are rather stout, with a broad, thin, blade-like, terminal piece, 

 which is generally lanceolate, with a rounded point, and often some 

 what curved, but more commonly straight. A few setc e have a slender 

 acute terminal piece. Anal segment with numerous small slender papil- 

 liform processes on each side, forming a circle. 



Length up to 35 mm ; breadth about 2.5 mm . 



Vineyard Sound, swimming actively at the surface, both in the even 

 ing and in the brightest sunshine, in the middle of the day ; July 3 to 

 August 11. 



r DIOPATRA CUPREA Claparede. Plate XIII, figs. 67, 68. (p. 346.) 



Aunelides ch6topodes du golfe de Naples, in Memoires de la Societe de Physiques 

 et d Hist. Nat. de Geneve, vol. xix, p. 432, 1863. Nereis ouprea Bosc, Hist. nat. 

 des Vers, vol. i, p. 143 (t. Claparede). 



Charleston, South Carolina, to Long Island Sound and Vineyard 

 Sound. 



MARPHYSA LEIDYI Quatrefages. Plate XII, fig. 64. (p. 319.) 



Histoire nat. des Anneles, vol. i, p. 337, 1865 (M. Leidii}. Eunice saiigninea 

 Leidy, Mar. Inv. Fauna of Rhode Island and New Jersey, p. 15, 1855 (non 

 Montagu). 



Great Egg Harbor, New Jersey, to Long Island Sound and Vineyard 

 Sound. Low-water mark to 10 fathoms. 



LYCIDICE AMERICANA Verrill, sp. nov. (p. 508.) 



Body depressed, slender, narrowed toward each end; segments well- 

 marked. Head much depressed, oblong, narrowed somewhat toward 

 the front, which is truncate and somewhat emarginate in the middle ; 

 lower side bilobed, the lobes well rounded. The two eyes are lateral, 

 just outside the bases of the lateral antennae. The three antenna are 

 subequal, nearly as long as the diameter of the head; the odd median 

 one is apparently a little longer than the lateral, and placed slightly 

 farther back. The dorsal cirri are long and slender, exceeding the 

 diameter of the body in living specimens; they have a small lobe near 

 the base. Anal cirri four ; the two lower exceeding the diameter of the 

 body ; the two upper ones less than half as long. Color light red, with 

 a bright red dorsal vessel and dark brown intestines, showing through in 

 the middle ; eyes dark red. 



Length, while living, about 40 mra ; greatest diameter, 1.5 mm . 



Off Gay Head, in 19 fathoms, soft mud. 

 21 v 



