A POLYNOTD WITH BRANCHI^. 439 



of " caruncle." Prostomium slightly bilobed, paired pro- 

 stomial tentacles or antennae arising one from each lobe just 

 below the anterior edge ; palps smaller than the antennae^ each 

 with a minute swollen basal piece. Parapodia, both those 

 bearing elytree and those bearing dorsal cirri, with a very 

 large number of filamentous and arborescent branchia-like 

 looking structures along the anterior and posterior border of 

 each, beginning on the posterior border of the 6th chsetiferous 

 parapodium, where there is only a single bifurcate filament ; 

 three segments further back they are present on both anterior 

 and posterior border of the parapodium, and are already 

 numerous ; they increase in number and size and amount of 

 branching for the next few segments, and are best developed 

 on the parapodia of the 15th to the 50th segments ; they then 

 decrease in number and size, and become more papilliform. 

 In structure each filament is hollow, its cavity being probably 

 an extension of coelom ; the cells of the epidermis are laden 

 with yellow granules, which look like excretory products, and 

 there is a very thick cuticle. Only one acicle to each para- 

 podium. Chsetse as in E. gulo (see figs. 8 b and 8c), with in 

 addition certain ones with double-brush shaped tips^ (fig. 8 a), 

 scattered amongst the comb of stiflp chsetse dorsally. The 

 " spinning gland " is well developed in every segment after the 

 first few, being long and coiled and occupying the cavity of the 

 parapodium, and opening on its dorsal surface ; the long fine 

 capillary chsetse produced by it are of a silky golden colour, 

 generally retracted but readily drawn out an inch or two (fig. 4, 

 cap). Elytra smooth, anteriorly flat, those of the 2ud parapodium 

 (the first pair) overlapping one another, but the rest well to 

 the side, leaving the whole of the dorsal surface except for the 

 parapodia exposed, small (relatively to the size of the animal) 

 and scarcely imbricate ; posteriorly they are swollen and pear- 

 shaped, each being attached to the parapodium by a stalk 

 (fig. 5). Dorsal cirri short (no longer than the branchise 

 where these are well developed), outside the elytra. Ventral 



' Resembling those of Eupompe Grubei, Kinberg(12), more than those 

 of any other of the species of which the chaetse have been figured. 



