594 EEPOET OF COMMISSIONER OF FISH AND FISHERIES. 



i^EMATONEEEis, species uudetermined. (p. 508.) 



A species, apparently belonging- to tli is genus, was dredged in 29 

 fathoms, east of Block Island. The specimens have been lost or mis- 

 laid. In life the head was small, rounded, with one median dorsal 

 antenna, about as long as the diameter of the head. Eyes two, small 

 but conspicuous, dark brown. Dorsal cirri slender. 



LuMBRicONEREis FRAGiLis CErsted. (p. 507.) 



Conspec. Anu. Dan., p. 1.5, fig's. 1, 2, 1843 (t. Malmgren). Liimhricus fragilis 

 Miilltir, Prod. Zool. Dau., p. 216; Zool. Dan., vol. i, p. 22, PI. 22, lios. 1-3, 1788, 

 (t. Malmgren). lAimh'inereis fragilis Malmgren, Annulata polycbseta, p. 63, 

 PI. 14, figs. 83-83, D. 



Month of Vineyard Sound and deeper waters outside; northward to 



Nova Scotia and Gulf of Saint Lawrence. Northern coasts of Europe. 



From low-water mark, in the Bay of Fundy, to 430 fathoms, oft Saint 



George's Bank. 



LUMBRICONEREIS OPALINA Verrill, sp. nov. Plate XIII, figs. 09, 70. (p. 

 342.) 



Lumhriconercis S2)lendida Leidy., op. cit., p. 15 (wo/i JJlainville). 



Body cylindrical, much elongated, largest in the middle, tapering 

 gradually toward the head, which is comparatively small; segments 

 well marked. Head conoidal, obtuse, changing much in form during 

 life; in extension considerably longer than broad, and more acute than 

 in the tigure. Eyes four, in a transverse row, the two middle ones 

 larger and a little in advance of the others. The lateral appendages, or 

 "feet," consist of a short, obtusely-rounded basal papilla, which bears 

 the setie ; from the posterior and ventral end of this a prominent elon- 

 gated lobe arises, which is somewhot curved and obtuse. These appen- 

 dages are longer in the middle of the body than anteriorly. Setae five to 

 nine in each fascicle, and of several forms ; one or two in each fascicle 

 usually have a long, slender, flexible capillary point. Color reddish or 

 brownish, with brilliant iridescence. 



Length up to 400"'™; diameter in middle, 3™'". 



New Haven to Yiueyard Sound ; low-water mark to 14 fathoms. 



LUMBRICONEREIS TENUIS Verrill, sp. nov. (p.. 342.) 



Body very long, slender, filiform, of nearly uijiform diameter through- 

 out, capable of great extension ; segments very numerous, well marked. 

 Head a little narrower than buccal segment, depressed, obtusely pointed 

 or rounded in front, without eyes. In the first to ninth pairs the late- 

 ral appendages have about six slender lanceolate setce; those of the ninth 

 pair have two slender spatulate set*, with about six or seven lanceolate 

 ones ; at the sixteenth pair they begin to have recurved spatulate setae, 

 with two or three hook-like denticles at the end, while two or three 

 lanceolate ones remain ; posterior to the twenty-third or twenty-fourth 

 pAir only one of the long, slender, acute setae remains, accompanied by 



