Annelida of the Bermudas. 611 



segments dark olive-green ; caudal segments and cirri pink. Some 

 specimens were forming two sexual zooids at the same time (these 

 were not found in the preserved collection). Two or more species 

 Avere confused in this lot. 



Another specimen (No. 12), supposed at the time to be the same, 

 was described when living, as translucent whitish anteriorly, light 

 green posterioi'h' ; the sexual zouid was pink and had conspicuous 

 eyes and numerous segments, which were broader than those of the 

 stem-form. This is probably a distinct species, for the oesophagus 

 appears to have a crenulate margin and the median tooth is much 

 smaller. 



Syllis (Typosyllis) cincinnata. (Stem-form, with a sexual Zooicl.) 



One specimen, in formalin, has part of the dorsal cirri replaced by 

 a thick, ovate pigmented body, with a small terminal papilla, per- 

 haps due to disease. This specimen has a zooid-head forming at 

 about the 28th segment, with two small brown eyes developed, but 

 special antennae and cirri are not present, nor any capillary setoe. 

 About 50 segments follow this head. In other respects this individ- 

 ual agrees closely with the type-form described above. 



Syllis (Ehlersia) exigua, n. sp. 



In addition to the various species described above, a small and 

 very slender or attenuated species was noted, but not fully described. 

 The single specimen is poorly preserved. It is remarkable for the 

 unusually elongated segments. Its generic characters are somewhat 

 doubtful. 



The body is composed of about 50 setigerous segments. Head 

 rather broad; palpi short ovate; eyes 6, the four posterior, which 

 are nearly equal, form a trapeze ; the anterior are smaller and nearer 

 together. The antennae, tentacular cirri, and anterior dorsal cirri 

 are all similar, long and slender with numerous rounded beads; the 

 dorsal cirri of the middle segments are also long, often twice as long 

 as the diameter of the body ; posteriorly they become shorter. 



Stomach is short, elliptical, as broad as long, occupying about 2 

 segments. 



The setae are long and slender; in the anterior 10 segments the 

 upper ones have very long, thin blades, ratio, 1: 8-1 : 10, the lower 

 ones have the blades about half as long, all feebly bidentate at tip; 

 farther back the blades of the upper ones become shorter ; on the 

 posterior segments decidedly so. In each fascicle, there is usually a 



