438 FLORENCE BUCHANAN. 



new species, after the name of its discoverer, E. Cornishii. I 

 would give the following as a definition of the genus and 

 of its contained species : 



1. Genus Eupolyodontes. 



Acoetidse with peduncles of eyes arising laterally from the 

 base of the prostomium, and fused with it on either side ; short 

 antennae or paired prostomial tentacles arising from the ante- 

 rior margin of the prostomium or slightly ventral to it; median 

 prostomial tentacle rudimentary or absent, arising from the 

 posterior part of the prostomium when present ; palps small, 

 no longer than the antennae, situated very close to or on the 

 bases of the eye-stalks. Dorsal surface of body very finely 

 rugate transversely and segment boundaries thus obliterated. 

 Parapodia with papillae on the dorsal surface, which may be 

 filamentous or even arborescent. Parapodia of buccal segment 

 not chsetiferous.i 



Sp. 1. — E. gulo, Gr. [Polyodontes gulo, Grube (8), *Arch. 

 f. Naturg.,' xxi]. 



Eupolyodontes with antennae arising from the anterior edge 

 of the prostomium, but with no median prostomial tentacle. 

 Parapodia with minute papillae, sometimes elongated, two to 

 five in number on the elytra-bearing segments, six or seven on 

 the others. Only one acicle to each parapodium ; chaetae of three 

 kinds : — a comb of short stiff chaetae slightly curved at apex, a 

 fine bundle of bipinnate ventral chaetae, and a dorsal bundle of 

 long delicate capillary chaetae, forming the thick silky thread 

 of the " spinning gland.^^ Hab. E-ed Sea. Living in tubes. 



Sp. 3. — E. Cornishii, n. sp. 



Eupolyodontes with a minute median prostomial tentacle 

 situated on the posterior part of the prostomium, and just in 

 front of a slightly raised part of the back which forms a kind 



' This may turn out hereafter, when new species are discovered, to be only 

 of specific value. 



