of the Virginian Coast. 



223 



antennae, no tentacular cirri, first segment with same ap- 

 pendages as the second : and in referring to the genus thus 

 limited his new species S. Claparedii [Die Borstenwurnier, 

 p. 252, pi. ix, figs. 10-13). Claparede afterwards corrected 

 his generic diagnosis, and gave a new figure of his type 

 species S. hystrix [Glanures, p. 85, pi. 6, f. 1), but this 

 was subsequent to the publication of Ehlers' work. In 

 any case, if *S. hystrix is to remain the type of the geuus 

 Sph^rosyllis, then S. Oxiparedii Ehlers, must be the type 

 of a new genus. 



PJEDOPHYLAX Clpd. 

 Annelides Chetopodes du Qolte de Naples p. 530. 



Claparede draws one of his generic characteristics from 

 the position of the eyes, assigning one pair to the buccal seg- 

 ment. This is not the case with the followiug species. In 

 fact, it is not true even of P. veruger Clp., in which they 

 are found in the depression between the head and buccal 

 segment. 



P^DOPHYLAX DISPAR 71. Sp. 

 PL. IT, FIG. 49. PL. V, FIGS. 50-55. 



Head (f. 49) convex, rounded in front and at the sides, 

 posterior margin nearly straight, length to breadth as 1:2. 



Eyes four, large, circular, lateral. Posterior pair a trifie 

 smaller than the anterior, a little within, almost in contact 

 with them, very near the posterior margin of the head. 



Palpi : length of projecting portion nearly double the 

 length of the head, convex, rounded laterally, diminishing 

 forward, front bluntly rounded and slightly emarginate ; 

 above, the palpi are separated by a slightly impressed line ; 

 below, by a depression which widens and deepens behind. 



Antennae : median, arising near posterior margin of 

 head, reaches nearly to the end of the palpi, fusiform ; 



