Smith and Harger — St. George's Banks Br edgings. 41 



Leodice vivida Verriii. 



Eunice vivida Stimpson, Marine Invertebrata of Grand Manan, p. 35, 1853. 



Leodice vivida Verrill. American Journal of Science, III, vol. v, p. 9, January, 1873. 



Plate V, figure 5. 

 Nothria conchylega Maimgren. 



OnupMs conchylega Sars, Beskrivelsir og lagttagelser, p. 61, pi. 10, fig. 28 {teste 



Maimgren), 1835. 

 Onuphis Eschrichti (Ersted, Gronlands Annulata Dorsibranchiata, p. 20, pi. 3, figs. 



33-41, 45, 1843. 

 Northia conchylega Johnston, Catalogue of British "Worms, p. 138, 1865. 

 Nothria conchylega Maimgren, Annulata Polychseta, p. 66, 1867. 



Plate VII, figure 3. 



This species is abundant in the deeper waters, especially upon hard 

 bottoms, on the whole northern coast of Xew England, and in the 

 Gulf of St. Lawrence. Maimgren records it, in 30 to 250 fathoms, 

 fnmi Greenland, Spitzbergen, Finmark, and the coast of Norway. 



The name " Nothi'ia " was substituted for Northia (Johnston) by 

 Maimgren for reasons that are scarcely sufiicient. The latter name 

 was, however, previously in use for a genus of shells (Gi'ay, 1847), 

 and must be rejected on that account. 



Nothria opalina Ven-iii. 



American Journal of Science, III, vol. v, p. 102, 1873. 



Plate VII, figure 4. 

 Body long and slender, narrowed anteriorly, much depressed and 

 of nearly uniform width throughout most of its length ; the five ante- 

 rior segments much longer than the others. Palpi inferior, rather 

 larcre, hemispherical ; antennne small, ovate, close together, on the 

 front of head. Three central tentacles very long and slender, taper- 

 ing, acute, the basal portion regtdarly annulated and thickened for a 

 considerable distance, beyond which the surface is smooth, with an 

 occasional distant annulation ; the central odd one is somewhat 

 shorter and more slender than the two adjacent ones, which reach to 

 or beyond the 10th segment ; outer pair much shorter, being less 

 than half the length of the central ones. Tentacular cirri small 

 and very slender. Lateral appendages or "feet" of the first six se 

 tigerous segments similar in structure but more prominent than the 

 following ones, from which they also difier in having the ventral 

 cirrus well developed, long and tapering, but shorter and thicker on 

 the first segment than on the five following. Those of the first pair 

 have a stout stalk, which terminates in a small, bhuitly rounded se- 

 tigerous lobe, with a long, slender, subterminal cirrus-like lobe above, 

 Trans. Conn. Acad., Vol. III. 6 August, 1874. 



