104 Thirty-second Report on the State Museum 



Fam. NEPHTHYDID^E. 



L NEPHTHYS Cuvier. 

 Nephthys incisa Malrngren. 



Nephthys incisa Mgrn. Nordiska Hafs-Annulater, p. 105, pi. xii, fig. 21. 1865. 



Annulata Polych., p. 141. 1867. 

 Nephthys ingens Vbertll. Invert. An. Vin Sound, etc., pi. xii, figs. 59, 60. 1874. 



" " Webster. Annel. Chaet. of the Virginian Coast, p. 213. 1879. 



Nephthys incisa Verrill. Check List. 1879. 



Not common. Found in sand and mud ; low water to fifteen feet. 



Nephthys picta Ehlers. 



Ehlers. Die Borstenwiircner, p. 632, pi. xxiii, figs. 9, 35. 1868. 

 Verrill. Invert. An. Vin. Sound, etc., p. 583, pi. xii, fig. 57. 1874. 

 Webster. Annel. Chaet. of the Virginian Coast, p. 214. 1879. 



Fam. PHYLLODOCID^E. 



ANAITIS Malrngren. 



Nordiska Hafs-Annulater, p. 94. 



Anaitis speciosa n. sp. 



PLATE I, FIGS. 8, 9. 



The outline of the head conforms perfectly to Malmgren's generic description ; 

 the middle third of the posterior margin curves suddenly backward, encroaching 

 upon the anterior margin of the first segment, the sides and front are regularly 

 rounded, forming a semicircle. 



Antennae delicate, conical, length about one-half the width of the head ; only 

 the upper pair can be seen from above ; both pairs arise from the lower surface 

 of the head, upper also external and pointing outward, lower directed downward. 



Eyes large, circular, lateral, posterior : first segment prolonged forward as far 

 as the front of the eyes, embracing the sides of the head. 



Tentacular cirri arise from short, stout basal articles, are stout at base, 

 regularly and acutely conical ; first and second equal, a little shorter than the 

 third, which reaches back to the front margin of the fourth setigerous segment ; 

 the fourth cirrus, or cirrus of the second segment, as long as the third. 



Dorsal cirri (branchiae) broad heart-shaped (fig. 8), with long basal attachment, 

 retaining the same form throughout ; feet (fig. 8) cylindrical, bilabiate ; ventral 

 cirri with slightly convex lower margin, nearly straight or slightly concave upper 

 margin ; apex bluntly rounded, a little shorter than the feet : anal cirri circular, 

 a little thicker than the dorsal. 



Setae (fig. 9) long, slender, with very long and delicate appendix ; the stem 

 ends in two sharp curved points, one much longer than the other. 



Color : head and first two segments white with brown specks ; dorsum generally 

 dark green ; between the segments a narrow spindle-shaped band of umber- 

 brown ; eighth and ninth segments umber-brown, giving a well-defined band 



