14 IOWA STUDIES IN NATURAL HISTORY 
remaining on either side as a prominent spot. This results in the poster- 
ior region of the body in two rows of spots in each somite, the dorsal- 
most being the larger, with an irregular pigment row running across the 
dorsal surface of the somite. 
Two varieties of male appear in the collection and agree so closely in 
the form of the tentacles, the eyes and the jaw structure that they cer- 
tainly are of the same species. In one variety the dorsal cirri of the 
first 7 somites have the form characteristic of the male heteronereis, while 
in the other the 6th somite carries on either side an enormously elongated 
dorsal cirrus (figure 24). This has a much swollen base and a terminal 
joint extending to a distance at least 5 times the diameter of the body 
including the parapodia. Two individuals out of seven have this structure. 
The jaws are light brown in color, are relatively very heavy and each 
has about 10 denticulations. . 
Collected by submarine light at English Harbor, Antigua. 
Type in Museum of the State University of Iowa. 
Family Glyceride 
GLYCERA Savigny 
Glycera abranchiata Treadwell 
Glycera abranchiata Treadwell, (1901), pp. 200, 201, fig. 49. 
Two specimens collected at Pillars of Hercules and one on 
‘fold coral heads.”’ 
Glycera dibranchiata Ehlers 
Glycera dibranchiata Ehlers, (1864-68), pp. 670 to 702, figs. 1 and 3 to 8. 
One specimen collected on ‘‘old coral heads.’’ 
Family Leodicide 
LEODICE Savigny 
Leodice binominata Quatrefages 
Eunice binominata Quatrefages, 1865a, I, p. 327. 
One specimen marked as collected in ‘‘old coral heads,’’ 
Barbados. 
Leodice fucata Ehlers 
Eunice fucata Ehlers, (1887), p. 91, pl. 25, figs. 1-20. 
Collected at Stations 25240, 25241, 25242, marked as from 
‘‘old coral heads’’ but consisting only of fragments without any 
anterior ends; three anterior ends and many fragments from 
Pillars of Hercules; off the Castle, east side Barbados, frag- 
ments only; and one specimen from tide pool at Pelican Island. 
Leodice mutilata Webster 
Eunice mutilata Webster, (1884), pp. 315, 316, pl. IX, figs. 36, 36a to 
36d, 40. 
Two anterior ends and many fragments were collected at 
