130 PART I. GENERAL ACCOUNT 



inadequate, but nevertheless the species is clearly assignable to the Poly- 

 brachiidae, an interesting conclusion for a species from the West Coast of 

 America. The discovery of the second of these species in the Gulf of Panama 

 was also remarkable, for it is undoubtedly a species of Lamellisabella. The 

 amphi-Pacific nature of the distribution of the genus Lamellisabella, however, 

 seems feasible, since the pogonophoran faunae of the eastern parts of the 

 Bering Sea and the Aleutian Trench remain unknown. Hartman (1961) has 

 recently described Siboglinum veleronis from deep water off California and 

 several finds of pogonophores have been made off Oregon. In 1959 the R.V. 

 Vityaz? found several new species, including species oiBirsteinia, Heptabrachia 

 and Galathealinum, in the north-eastern part of the Pacific Ocean. One of these 

 species has now been described — Galathealinum brachiosum Ivanov (1961c), 

 from the west coast of Canada and the coast of Oregon. 



Only two species have been described from the Indian Ocean — Diplo- 

 brachia belajevi, collected by the Soviet Antarctic Expedition of R.V. OF to 

 the east of Maskaren Island at a depth of 580 m, and Siboglino'ides dibrachia, 

 which has been collected at a number of stations from the entrance to the 

 Gulf of Aden, the Arabian Sea, South of Bali Straits, South of Java and in 

 the Timor Sea. R.V. Vityaz? has collected not less than 25 new species in the 

 Indian Ocean, including representatives of Siboglinum, Galathealinum, 

 Polybrachia and Lamellisabella. 



The study of the pogonophoran fauna of the Atlantic has only just begun. 

 In 1956 Jagersten described Siboglinum ekmani from the Skagerrak. In the 

 following year he reported the presence of another species of Siboglinum (still 

 undescribed) from the same area (Jagersten, 1957). In the summer of 1957 

 Kirkegaard also collected abundant material of S. ekmani from various points 

 in the Skagerrak and has since collected much more, keeping some of the 

 specimens alive for six weeks (Kirkegaard, 1958, 1961). At the same time the 

 Southwards collected three species of Siboglinum at a few stations, situated 

 to the south-west of Great Britain, dredged by R.V. Sarsia (Southward and 

 Southward, 1958a; A. J. Southward, 1958), and N. A. Holme rook an un- 

 described species of Siboglinum in 160 m off the west coast of Ireland 

 (A. J. Southward, 1958). Amongst these Atlantic species S. atlanticum 

 (Southward and Southward (1958b)) is closely related to S. taeniaphorum 

 from the Molucca Islands, while S. caulleryi was first described from the 

 Sea of Okhotsk. The eastern Atlantic has yielded two new species, Oligo- 

 brachia ivanovi and Polybrachia capillaris, from deep water off the coasts of 

 England and Spain (E. С Southward, 1959). 



Several new species of Siboglinum have been taken in the Norwegian Sea 



