104 U.S. NATIONAL MUSEUM BULLETIN 227 



Microphthalmus aberrans (Webster and Benedict, 1887) 



Figure 27,a,b 



Podarke aberrans Webster and Benedict, 1887, p. 713, pi. 1, figs. 14-18, pi. 2, 



figs. 19-20. 

 Microphthalmus aberrans Southern, 1914, p. 46, pi. 5, fig. 7. 



Description. — Length up to 9 mm., width including setae up to 

 1 mm., segments up to 51. Notoseta simple, curved, spinous. 

 Proboscis with 10 wide conical papillae around opening. Color: 

 white or may be slightly dusky. Appears to be hermaphroditic, with 

 sex products (white eggs) massed from setiger 10 to end of body, with 

 a copulatory structure (on left side between setigers 2 and 3), and 

 viviparous (1 specimen had fertilized eggs and ciliated larvae inside). 



Biology. — Found at low water in sand and gravelly sand. Found 

 associated with two terebellids, crawling on the surface of the body 

 and among the numerous oral tentacles of Lysilla alba Webster and 

 Enoplobranchus sanguineus (Verrill). Adults massed with eggs were 

 found in June (West Falmouth Harbor, Massachusetts, June 26, 

 1954). 



Material examined. — Types from Eastport, Maine. Also Maine 

 (Cape Newagen, Southport Island, Boothbay Harbor), New Hamp- 

 shire (Rye Harbor; Fort Stark, sand sievings, 1955, N. Riser), Massa- 

 chusetts (West Falmouth Harbor, inside breakwater). 



Distribution. — Maine to Massachusetts. Low water. 



Genus Podarke Ehlers, 1864 



Type (designated by Hartman, 1959a) : Podarke agilis Ehlers, 1864. 

 Contains only one New England species, 



Podarke obscura Verrill, 1873a 



Figure 28,a,6 



Podarke obscura Verrill and Smith, 1874, pp. 25, 88, 146, pi. 12, fig. 61.— Webster 

 and Benedict, 1884, p. 706.— Webster, 1886, p. 135, pi. 5, figs. 17-18.— 

 Treadwell, 1901a, p. 399.— Sumner, Osburn, and Cole, 1913, p. 616.— Hart- 

 man, 1944a, p. 338, pi. 34, fig. 2 (juvenile), pi. 23, fig. 12 (as Castalia cin- 

 cinnata); 1944c, p. 16; 1945, p. 14.— Miner, 1950, p. 300, pi. vii, 1, viii, 

 2.— Pratt, 1951, p. 330, fig. 452.— Costello, et al., 1957, p. 90. 



? Podarke guanica Hoagland, 1919, p. 571, pi. 29, figs. 1-4. — Rioja, 1958, p. 235. 



Podarke near guanica Hartman, 1951, p. 36, pi. 10, figs. 1-3. 



Description. — Length up to 40 mm., width including setae up to 

 3 mm., segments up to 90. Body widest in the middle, tapering 

 gradually posteriorly and less so anteriorly, convex dorsally, flattened 

 ventrally, with segments deeply incised laterally. First tentacular 

 segment not visible dorsally, with 2 pairs of tentacular cirri lateral to 



