42 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 15 



Goniadella differs from Goniada (see above) in that neurosetae 

 include both falcigerous and spinigerous ones; the presetal neuropodial 

 lobe is entire, not bifurcated. Goniadella agrees with Goniadopsis (see 

 above) in having falcigerous composite setae, but in the latter these 

 setae are limited to anterior segments; also, chevrons are present in 

 Goniadella, absent in Goniadopsis Fauvel. 



Goniadella gracilis (Verrill), new combination, revised 



Plate 5, figs. 4-8 



Eone gracilis Verrill, 1873, p. 596. 



Goniada gracilis Verrill, 1880, p. 172; Webster and Benedict, 1884, 

 pp. 723-724, pi. 5, figs. 49-52; Hartman, 1944a, p. 339, pi. 47, 

 fig. 2, pi. 50, fig. 3. 



Material examined. — Off Newport, Rhode Island, USFC 1880, 

 locality 805, steamer Fish Hawk, August 17, 1880, at Browns ledge in 

 1 \% fms, on fine gravel ( 1 ) ; off Cape Cod, Massachusetts at low water, 

 USFC, August 14, 1879 (1). 



These collections were borrowed from the Peabody Museum of 

 Natural History at Yale University. The first was labeled Goniada 

 gracilis, the second Goniada maculata Oersted, but both belong to the 

 same species and are referred to Goniadella gracilis (Verrill). Both in- 

 dividuals are now more or less hardened and brittle. They are tiny and 

 twisted so that total length is difficult to estimate; they approximate 20 

 mm long, as first stated. Large ova in the body cavity indicate that the 

 specimens were perhaps mature. The body is strongly annulated, but 

 anterior rings are crossed medially by a shallower, transverse ring. In 

 its posterior part, the body resembles that of some lumbrinerids, in that 

 the segments are moniliform ; the long presetal lobe tends to stand erect. 



The prostomium consists of 8 sharply separated rings and is slightly 

 depressed (fig. 8). Its anterior margin has 4 slender, prolonged antennae 

 in which the distal article is much slenderer than the base. A pair of red- 

 dish eyes is visible in the basal ring, as originally stated, but there is 

 also a second pair of eyes in the distal ring. 



The proboscis is partly everted in one individual. It is covered 

 with minute proboscidial organs that are now too shrunken to deter- 

 mine their form. Each side of the proboscis has chevrons, numbering 

 about 26 very closely spaced pieces (fig. 6) ; this area is nearly 3 times 

 as long as wide. Paragnaths are dark horny brown. Macrognaths have 

 each about 4 strong, clawlike teeth. Micrognaths consist of a longer 



