Annelida of the JBerrnudas. 627 



lower ones have the blades only 4 to 6 times as long as wide ; the 

 posterior fascicles have numerous similar compound sette and also 

 one slender, acute, simple straight seta, usually rather shorter than 

 the rest ; a smaller simple seta occurs in many anterior fascicles. 



The oesophagus is short, Avith a median tooth, but its margin could 

 not be distinctly seen. The stomach is short, occiipying about 6 seg- 

 ments, strongly elliptical, covered with regular rows of squarish 

 cell-clusters. 



Odontosyllis enopla, sp. nov. 



A large species with a dark brown, wide, short oesophagus, ai*med 

 Avith a ventral row of six stout, recurved, hook-like teeth anteriorly, 

 besides the median dorsal tooth. 



Head large, bi'oader than long, broadly rounded in front and on 

 the sides ; posteriorly with two rounded lobes, separated by a small 

 median emargination. Eyes black, unequal, the anterior ones much 

 the larger, reniform ; those of each side are so close together that 

 they seem to be almost in contact. 



Palpi shorter than the head, rather wide, thin, often wrinkled or 

 folded in contraction, and commonly curved downwai'd. 



Tentacle tapered, rather slender, not annulated, its length about 

 \^ times that of the head. Antennae similar, about h; as long. Ten- 

 tacular cirri similar to the tentacle, the upper one rather larger and 

 longer ; the lower ones shorter ; first dorsal cirrus decidedly longer 

 and larger than the upper tentacular cirrus. Succeeding ones mostly 

 shorter, unequal, alternately shorter and longer, tapered distally ; the 

 longer ones are equal to the breadth of the body, the shorter ones 

 about ^ as long ; those on setigerous segments 3, 4, 6, 9 are longer 

 than the others. 



The setJB are all similar, numerous, slender, short, projecting but 

 little beyond the parapodia, with short rather wide blades, ratio as 

 1 : 2J-3 ; their tips are strongly incurved and acute, with a small 

 denticle a little distant from the end. Two spiniform yellow acicula 

 usually occur in each fascicle. 



The oesophagus is short and occupies about 4 segments ; its mar- 

 gin is incurved and strongly emarginate dorsall3\ It bears a group 

 of 6 nearly equal, parallel, recurved hooks or teeth, which are large 

 and strong. The conical dorsal tooth is near the margin. 



The stomach is large and occupies 8 segments ; it is wide, ellip- 

 tical, and about twice as long as the oesophagus. Its surface is cov- 



