244 DB. baikd's conthibtjtions towauds a 



Chrysopetalea, Elders, Die Borstenwurmer, 1864. 



No caruncle. Eyes four or (?) two. Feet uniramose (except in 

 Bhawania ?). Only one bundle of setse on each foot. Branchiae 

 in form of flat setse (or palece) disposed in rows, on each side of 

 the back, on each segment. 



A. Body s1iort,witlifeio segments. 

 Genus I. Chetsopetalum. 



Chrysopetalum, Elders, Die Borstenwurmer, 1864 j Quatrefages. 



Feet uniramose, furnished with only one tuft of setae. Head- 

 lobe with four or (?) two eyes, a tentacle, two antennae, and 

 two palpi. The first segment of body provided with four cirri on 

 each side ; the succeeding segments with a cirrus on each side. 

 Body nearly as broad as long. Branchiae placed on each seg- 

 ment, on each side of body, disposed in a fan-shaped row of flat 

 setae or paleae *. Paleae broad and rather short. 



Sp. 1. Chbysopetalum fragile, 



Chrysopetalum fragile, Ehlers, Die Borstenw. p. 81, tab. ii. f. 3-10 j 



Quatrefages, Hist. Nat. AnneUs, i. 291. 

 Hob. Quarnero, Ehlers. 



Sp. 2. ? Chrysopetalum debile. 



Palmyra debilis, Grube, Beschr. neuer oder wenig bekannt. Annelid, in 



Wiegmann's Arohiv f. Naturg. 1855, i. p. 90, tab. iii. f. 3-5 ; Cams, 



Handb. der Zool. ii. p. 434. 

 Chrysopetalum debile, Ehlers, Vie Borstenwurm. p. 81 ; Quatrefages, 



Hist. Nat. Anneles, i. 296. 

 Bab. Villa Frauca, Grube. 



Genus II. Paleonotus. 



Paleonotus, Schmarda, Neue wirbell. Thiere ; Cams, Handb. der Zool. ; 

 Ehlers, Die Borstenwurmer ; Quatrefages. 



Society's Journal. Ehlers, however, has, I think, satisfactorily shown that this 

 family is more nearly connected with the Amphinomacea ; and as he has care- 

 fully worked out the family and genera which appertain to it, I propose fol- 

 lowing his arrangement, and bringing now tlio family Pulmyriduj into tho 

 group of Amphinomacea!. 



* These branchiae, composed of flat bristles, or pale<s, as they hare been 

 called, are considered by Savigny, in the case of Palmi/ra, to be the setse of tho 

 dorsal row of feet. He placed the genus amongst the Aphroditacea, and in 

 this arrangement he has been followed by Audouin and M.-Ed wards, Grube, &e., 

 who all take the same view of the case with regard to these appendages. 



