ANNELIDS. I. 



!; 



think that so strange and characteristic a fact could be overlooked, I haw come to the conclusion 

 that the two forms must be specifically different. 



fig. 9 . 



Harmothoe castanea (Mc. Intosh) 



1876. Malmgrenia castanea, Mc. Intosh: Trans. Zool. soc. IX. 



1900. — , Mc. Intosh: A monogr. Brit. Ann. p. 379. 



Locality : 



The Ingolf-Exped. St. 86. 65VV N. L 23° '47' W. L. 

 76 fms., Bredefjord, Iceland. 



Off the Bisp, E. S. E. Faroe Islands, c. 70 fms. 

 In Bredefjord, Iceland the Ingolf-Expedition has 

 taken a single very small specimen which must certainly be 

 referred to this species. From the Faroe Islands are pre- 

 sent nine specimens, rather typical and agreeing well with 

 Mc. Intosh's description. They have been taken on Spa- 

 tangus purpureus, a fact which only further confirms the 

 correctness of the determination. However, some incon- 

 spicuous differences are present between the description 

 of the named author, and the specimens from the Faroe 



Islands; as the specimens from different localities are stated to vary in regard to the construc- 

 tion of the setse, I shall here point out the result of my examination. The parapodia agree 

 well with the description of Mc. Intosh (fig. 9). Only the ventral bristles seem to be relatively 

 longer. Further the development of the transverse spiny rows seems to be more feeble, and 

 the most ventral of the named bristles are quite smooth, as seen in my figures (figs. 10 a, />). 

 The geographical range of this species is now stated to stretch between 

 Iceland and Valencia, and must be supposed to coincide in the named region with 

 that of Spatangus purpureus. 



Harmothoe acanellae (Verrill.). 



PI. I, figs. 6, 8, 9, 13. PI. II, fig. 4. 



1883. Polynoe acanella, Verrill: Results of the explorations made by the steamer 



Albatross off the Northern coast of the U. S. in 1883, p. 525. 



1885. , Verrill: Notice of recent addit. to the marine Invertebrata 



of the North eastern coast of America. Proc. U. S. Nat. 



M. t. VIII, p. 424. 

 Localities : 



Ingolf-Exped. St. 46. 6i°32' N. L. n°36' W. L. 720 fms. South of Iceland. 

 - 10. 64°24' — 28°5o' 788 Danmark Strait. 



fig. 10. — - 39. 62°oo' — 22°38' — 865 — South of Iceland. 



