ON A BHAWANIA-SPECI MEN. 



221 



of Chrysopetalum however in these worms the total 

 margin of the bristle is serrated and there occur only 5 

 longitudinal ridges on its dilated portion. The paleae of 

 Paleanotus 2 ) too, as far as can be concluded from Schmarda's 

 incomplete figures, have a similar appearance ; on the 

 contrary the long paleae (»spinose dorsal bristles" Mc. 

 Intosh) of Palmyra 3 ) differ considerably and have a quite 

 other feature. 



Outward from the row of paleae and separated from it 

 by the dorsal cirrus , the notopodium bears a fascicle 

 of elongated, spatulate bristles with a pointed tip and a 

 short shaft (fig. 4) ; they show the same fine transverse 

 striation as the underside of the paleae, but it is usually 

 masked by foreign matters adhering to them. A yellow, 

 faintly bent acicula occurs at the base of this fascicle. 

 Chrysopetalum appears to lack this dorsal fascicle ; however 

 in Paleanotus it is probably present (Schmarda, loc. cit. p. 163). 



The neuropodium contains a fascicle of compound 

 bristles, much resembling those of Nereis (fig. 5). The 

 stalk has at its distal extremity a forked cup, much higher 

 at one side than at the other, in which a falcate appendix 

 is articulated, that ordinarily is provided with hairs along 

 its concave border; in some of them this terminal piece is 

 twice as long as in others. Moreover in the dorsal portion 

 of the ventral fascicle there occurs a couple of setose bristles 

 (fig. 6), the distal region of which is also furnished with 

 fine hairs along its margin. This fascicle is likewise sup- 

 ported by a yellow acicula. In Chrysopetalum as well as 

 in Paleanotus the ventral fascicle contains also compound 

 bristles; Palmyra on the contrary has simple, forked ven- 

 tral bristles. 



All segments of Bhawania are provided with a dorsal 

 cirrus, situated outward from the row of paleae and 

 almost as loug as these; it consists of a cylindrical basal 



1) Ehlers, loc. cit. pi. II, fig. 5. 



2) Schmarda, loc. cit. p. 163, fig. e and pi. 37, fig. 329. 



3) Mc. Intosh, Challenger Annelida, pi. VI a, fig. 8. 



Notes from the Leyden Museum, Vol XXX. 



