BARBADOS-ANTIGUA REPORTS q 
bluntly conical setal portion with a short anterior lip at the apex. The 
dorsal cirrus is slender without any special markings and arises from a 
very stout cirrophore placed posterior to the dorsal seta-tuft. A small 
acicula extends into the dorsal portion of the parapodium and a much 
heavier one lies in the setal lobe. The ventral cirrus is very slender. On 
the dorsal surface of the parapodium is an elevation corresponding to 
the elytrophore of the elytra-bearing somites. 
The dorsal sete are stout and only a very little curved toward the 
blunt apex. Each has many rows of spines which have the form of 
transversely arranged plates which according to the position of the seta 
look like a marginal row of fine teeth or else are seen along both mar- 
gins of the seta-stalk and then look like two rows of teeth. The ventral 
sete are very heavy and few in number in each parapodium. Each 
(figure 4) has a stout apex with a strong sub-terminal tooth. In the 
parapodium figure there were 9 of these ventral sete, of which the 3 
ventralmost were smaller than the others and without lateral plates. The 
6 dorsalmost ones had the small plates shown in figure 4 each of which 
is finely denticulated along the free margin. In the position figured they 
appear as a row of marginal spines. If the seta is rolled so that the 
sub-terminal tooth is uppermost they show on both margins. The plates 
evidently are wider than the stalk of the seta. 
The type is in the Museum of the State University of Iowa. 
Family Sigalionide 
STHENELAIS Kinberg 
Sthenelais grubei Treadwell 
Sthenelais grubei Treadwell, (1901), pp. 187, 188, figs. 10 to 13. 
The original description was rather brief but there is no doubt 
as to the identification. In the original description it is stated 
that as far as somite 27 the elytra do not cover the dorsal sur- 
face. In this specimen the first five elytra cover the surface, 
the next eight leave a narrow uncovered area and behind this 
the surface is entirely covered. One incomplete specimen: col- 
lected at Station 104. 
Family Acoetide 
PANTHALIS Kinberg 
Panthalis pustulata new species 
Three fragments evidently together comprising the entire body of the 
animal were in a bottle, but because of this broken condition measure- 
ments of length and counts of the number of somites and elytra are 
necessarily more or less inaccurate. The body length is approximately 
115 mm. and the width without parapodia 11 mm. There are about 110 
somites with at least 100 elytra. 
The prostomium (figure 10) is oval in outline, barely 1 mm. in the 
transverse and rather more than that in the antero-posterior diameter. 
