178 ANNELIDA POLYCHAETA. 



besides the two ordinary teeth another small one; this 

 confirms the observations about the variability of the num- 

 ber of paragnathi of this group. 



This species is closely allied to N variegata Gr. *), per- 

 haps identical with this species from the West-coast of 

 South America (Callao and Valparaiso); as the descrip- 

 tion of this worm is not accompanied by figures , the ques- 

 tion remains somewhat doubtful. However in his paper» die 

 Familie der Lycoriden" published afterwards, Grube gives 

 more detailed communications about the arrangement of the 

 paragnathi and states that the species shows all the stri- 

 king characters of Kinberg's genus Paranereis. N. ferox 

 resembles N. variegata 2 ) as well in the colour and the 

 dimensions of the cephalic lobe, as in the length of the 

 tentacular cirri and the structure of the feet. Kinberg's N. 

 elegans seems to be distinguished by the shape of its head 

 >lobus cephalicus elongatus, segmenta 5 proxima aequans." 



? Nereis Si im psoitis Gr. [nee N. variegata Gr.] 

 (PI. 7, figs. 9 — 11). — Reise der Oesterr. Fregatte Novara , 

 Zoolog. Theil, Bd. II, Anneliden, p. 18, T. I, fig. 8. 



In our collections there are two large A^rm-specimens , 

 collected by Mr. Horstock at the Cape of Good Hope , 

 which I believe must be identified with Grube's N. Stimp- 

 sonis. However some confusion seems to reign in the de- 

 scription of the characters of this species. For Grube's 

 description is established on two specimens: a large one 

 collected near the Cape during the Cruise of the Novara, 

 and another example of the Hamburg Museum probably 

 from the same locality; because this latest specimen much 

 agreed with A r . variegata (really belonged to that species, 

 as I believe) , therefore Grube concluded that his N. Stimp- 

 sonis should be considered to be a variety of N. variegata. 



1) Annulata Oerstediana, Naturh. Foren. Vidensk. Meddedelser, 1857, p. 7. 



2) About Grube's identification of N. variegata and TV. Stimpsonis see fur- 

 ther on. 



^Notes from the Leyden Museum , Vol. XI. 



