222 FRESH-WATER NEREIDS FROM THE PACIFIC COAST AND HAWAII. 



Leidy, J. 



'59. (Manayunkia speciosa.) Proc. Acad. Nat. Sci., Philadelphia, 1858, p. 90. 



Leidy, J. 



'84. On Manayunkia. Proc. Acad. Nat. Sci., Philadelphia, 1883, pp. 302-303. 



Malmgren, A. J. 



'67. Annulata polychaeta Spetsbergiae, Gronlandiae, Islandiae et Scandinaviae hactenus cognita. Ofver- 

 sigt Kongl. Vet. Akad. Forhandl., Stockholm, Arg. 26, pp. 127-325, 14 Taf. 



Mendthal, M. 



'90. Untersuchungen iiber die Mollusken und Anneliden des frischen Haffs. Schrift. phys.-oekon. Gesell. 



Koenigsberg, Jalirg. 30, pp. 27-42. 

 Nusbaum, J. 



:01. Dybowscella baicalensis nov. gen. nov. spec. Ein im Siisswasser lebendes Polychaet. Biol. Centralbl.; 



Bd. 21, No. 1, pp. 6-18. 

 Nusbaum, J. 



:01 a . Noch ein Wort iiber Dybowscella baicalensis mihi und einige andere Siisswasserpolychaeten. Biol. 



Centralbl., Bd. 21, No. 9, pp. 270-273. 

 Potts, E. 



'85. Note on Manayunkia speciosa. Proc. Acad. Nat. Sci., Philadelphia, 1884, pp. 21-22. 

 Saint-Joseph, le Baron de. 



:01. Sur quelques invertebre's marins des cotes du Senegal. Ann. Sci. Nat., zool., sei. 8, torn. 12, pp. 217- 



248, pis. 8-9. 

 Savigny, J. C. 



'20. Syst6me des Annelides, principalement de celles des Cotes de 1'Egypte et de la Syrie. Description de 



1'Egypte, Hist. Nat., torn. 1, 128 pp. 

 Webster, H. E. 



'79. Annelida Cheetopoda of New Jersey. 32 Ann. Rep. New York State Mus. Nat. Hist., pp. 101-128, 



7 pis. 

 Zykoff, W. 



:01. Bemerkung iiber Dybowscella baicalensis Nusb. Biol. Centralbl., Bd. 21, No. 9, pp. 269-270. 



EXPLANATION OF PLATES XVI-XVII. 



All the figures, excepting Figure 1, are from camera-lucida drawings of preserved material. The seise were 

 mounted in glycerine. 



PLATE XVI. 

 FIGS. 1-10, NEREIS LIMNICOLA sp. nov. 



Fig. 1. Anterior extremity of a young specimen, drawn from life. XI 4. 



Fig. 2. Dorsal aspect of proboscis. X12.5. 



Fig. 3. Ventral aspect of proboscis. X12.5. 



Fig. 4. Posterior aspect of fifth foot. X23. 



Fig. 5. Posterior aspect of thirty-first foot. X23. 



Fig. 6. Posterior aspect of sixtieth foot. X23. 



Fig. 7. Profile of a seta from the dorsal fascicle. X350. 



Fig. 8. Profile of a falcate seta, ventral fascicle. X 350. 



Fig. 9. Profile of a stout, falcate seta, ventral fascicle thirty-fourth foot. X350. 



Fig. 10. Profile of a seta with anchylosed appendage, ventral fascicle of a foot near posterior extremity. X350. 



Figs. 11, 12, 13. Profiles of setse of Lycastis hawaiiensis sp. nov. X350. 



Figs. 14, 15, 16. Profiles of setae of Lycastoides alticola sp. nov. X350. 



