230 



Annelida Chcetopoda 



Short autennse bad appeared, the lateral being bifurcate 

 at outer third. The dorsal cirrus of the uext segment had 

 doubled its length. 



On another specimen, there was a sudden falling off in 

 width back of the 14th segment, while two other speci- 

 mens had lost all save the first fourteen segments. It 

 would seem that the separation of the sexual from the stem 

 form takes place between the 14th and 15th segments. 



Dredged : 4 to 12 fathoms ; on shells, etc. 



Progeria? ccerulea n. sp. 



The following notes were made upon two specimens, 

 taken in August, both females, badly injured, and lost by 

 accident before the examination was completed. They 

 belong either to Progeria or Autolytus ; their mutilated 

 condition did not admit of a positive generic reference. 



Body, strongly convex above, fiat below. 



Eyes four; the anterior pair very large; the lateral, 

 convex, nearly terminal; the posterior eyes, smaller, dorsal. 



Antennae : median very long, arising back of anterior 

 eyes ; lateral, half as long as median, arising just in front, 

 and a little outside of, anterior eyes. 



Tentacular cirri and dorsal cirri of first and second seg- 

 ments, too badly injured to admit of description. Dorsal 

 cirri quite long, reaching to end of the capillary setae. 



Feet same as in P. tardigrada ; first six with a fan of 

 short, dark colored setae; capillary setae from the 7th to the 

 2l8t segments inclusive, followed by a few segments with- 

 out them. 



Color : dark blue both above and below, with perfectly 

 black transverse bands, not crossing the ventral surface. 

 Base of feet dark brown. Body filled with large eggs. 



Found with P. tardigrada. Dredged : 4 to 12 fathoms ; 

 on shells, etc. 



