222 U.S. NATIONAL MUSEUM BULLETIN 227 



Material examined. — Massachusetts (Georges Bank, 18-47 

 fathoms) and off Rhode Island. 



Distribution. — Massachusetts to ofT Rhode Island. Low water 

 to 47 fathoms. 



Genus Glycinde Muller, 1858 



Type (monotypy): Glycinde multidens Muller, 1858. Contains 

 only one New England species. 



Glycinde solitaria (Webster, 1879) 



Figure 5G,h-n 



Goniada solitaria Webster, 1886, p. 146, pi. 7, figs. 41-42, pi. 8, figs. 43-44. 

 Goniada oculata Treadwell, 1901b, p. 201, figs. 50-53. — Treadwell, in Cowles, 



1930, p. 344. 

 Glycinde solitaria Hartman, 1945, p. 23; 1950, p. 54, pi. 7, figs. 1-15. 



Description. — Length up to 35 mm., width up to 1.3 mm., 

 segments up to 150. Prostomium acutely conical with 9 rings, with 

 4 minute slender antennae, with 2 pairs minute eyes, a pair in basal 

 ring and a pair in distal ring. Anterior region (fig. 56i) with 24-25 

 segments, with dorsal and ventral cirri large and conical, and with 

 presetal and postsetal neuropodial lobes long, narrow, about equal 

 in length to cirri. Neurosetae long, compound spinigers forming 

 a fan-shaped group (fig. 56,Ar,Z). 



Posterior region slightly wider and more flattened, with parapodia 

 (fig. 56;) becoming gradually biramous, the notopodial lobe forming 

 a small inconspicuous low lobe, gradually increasing in size posteriorly. 

 Notosetae few (3-6), acicular, falcate and hooded. Neuropodial 

 lobe larger and longer than in anterior segments, the presetal lobe 

 long, surpassing the postsetal lobe. Dorsal cirri smaller than on 

 anterior segments. Anal cirri long, filiform. 



Proboscis (fig. 56A) with surface papillae, or proboscideal organs, 

 heterogenous, in longitudinal rows consisting on each side of 6 dorso- 

 lateral rows of long hooks (zone ii), a lateral row of 2-4 knobbed 

 organs (zone iv), a ventrolateral row of hooks (zone v). A pair of 

 dentate macrognaths present with 4 or 5 teeth (fig. 56w). About 

 10 micrognaths present in dorsal arc (fig. 56n), none in the ventral 

 arc. Color: pale yellowish or gray, tinged with green. 



Biology. — Found at low water in mud and sandy shoals. Dredged 

 on bottoms of mud. Due to its small size, it may easily be over- 

 looked. 



Material examined. — Maryland (Chesapeake Bay, low water 

 to 26 fathoms). 



Distribution. — New Jersey, Maryland (Chesapeake Bay), North 

 Carolina, Puerto Rico. In low water to 26 fathoms. 



