18 IOWA STUDIES IN NATURAL HISTORY 
and under rocks in English Harbor, the latter specimens in- 
complete. 
Family Sabellide 
BRANCHIOMMA KoOlliker 
Branchiomma lobiferum Ehlers 
Branchiomma lobiferum Ehlers, (1887), pp. 254 to 259, pl. 53, figs. 10 
to 15. 
One specimen collected at English Harbor, Antigua. 
PARASABELLA Bush 
Parasabella sulfurea Treadwell 
Parasabella sulfurea Treadwell, (1917), p. 267, pl. 3, figs. 20 to 23. 
One specimen collected at Bathsheba. 
DASYCHONOPSIS Bush 
Dasychonopsis conspersa Ehlers 
Dasychone conspersa Ehlers, (1887), pp. 266 to 270, pl. 54, figs. 1 to 6. 
Since this species has dorsal appendages on the gills and a 
two-lobed collar it belongs in the genus Dasychonopsis rather 
than Dasychone. The specimens in this collection agree so close- 
ly with Ehlers’ description that I have decided they belong in 
this species, though they are much larger and have a larger 
number of gills. Ehlers’ specimens measured 26 mm. in length 
and had 19 gills. Some of these were 105 mm. in total length, 
the gills measuring 30 mm. and there were from 35 to 40 gills. 
It seems probable that the difference is due to age. Two speci- 
mens were collected at Pelican Island and two at Bathsheba. 
BisprrA Claparéde 
Bispira melanta Schmarda 
Sabella melania Schmarda, (1861), p. 35, figs. a, b, e, pl. XXIII, fig. 192. 
Dasychone wyvillei McIntosh, (1885), pp. 501, 502; pl. XXXIa, figs. 1 
to 3. 
Schmarda’s description is too brief to be of much diagnostic 
value, but so far as it goes it applies to these specimens except 
that he figures an uncinus without apical teeth. In all of my 
specimens these have apical teeth and McIntosh so indicates 
them in his figure 3. Schmarda’s figure 192 agrees very close- 
ly with the appearance of the Barbados specimens. He figures 
about 24 rachides in each half of the gill, but as he is obviously 
intending to represent only one side of the animal the agree- 
ment is close, for the Barbados specimens have about 50 rachides 
in the gills. 
