BARBADOS-ANTIGUA EXPEDITION 207 
ly tufted gills, a pair to each segment throughout its length. 
Each tuft of sete is like a thick paint-brush and each gill is 
borne on a short thick pedicel which branches so as to bear five 
terminal tufts of gill-filaments. The neuropodia bears very 
dense, somewhat flattened tufts of sete which are exceedingly 
slender, needle-like and without ornamentation. 
Two species of sipunculids were found. One was quite large 
and was collected in sand under rocks, the preserved specimens 
attaining a length of as much as five inches. The body is close- 
ly annulated throughout and covered with rough nodules with- 
out tentacles or hooks. The other species was considerably 
smaller and was found by breaking open old coral rocks. It 
differed, however, from those found at Barbados in having no 
hooklets. The posterior end was abruptly conical or top-shaped, 
with very distinct rugosities radiating upward from the top of 
the cone, and was covered with small round tubercles or granu- 
lations. The body wall is translucent, showing longitudinal 
muscles which were sometimes forked and very strong. The an- 
terior end is dark brown and covered with nodules like cobble- 
stones. These in turn appear to be overlaid with fine scales, the 
edges of which appear to be chitinous and may be homologous 
with the fine denticles found in the Barbados species. There is, 
as usual in this group, an eversible proboscis. 
A small cheetopod was found as a parasite or symbiont in a 
long tubular sponge. It was very minute for this group and 
appears to be without eyes, showing that it has long dwelt in 
the dark interior of sponges. The parapodia bear finger-like 
cirri, and the anterior ones appear to bear but a single seta, 
while those further back bear several. These worms seem to be 
undergoing a process of asexual reproduction by transverse fis- 
sion, a few of the posterior segments being abruptly different 
from the rest as in Syllis, for instance. 
As a whole, the collection of annelids is probably the most 
extensive and interesting of the material secured at English 
Harbor. 
Coelenterates—While there are very extensive coral reefs 
around Antigua, they are mostly on the northern and western 
coasts too remote from our quarters te investigate, particularly 
as the more immediate region yielded ample returns to the eollec- 
