6 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM 



This species is described and figured by Williamson who compares 

 it with Spirillina perforata and stresses the fact that in his species 

 the "large foramina" of S. perforata are absent, and it is marked by- 

 small protuberances. Such specimens seem to be present in Recent 

 material from Western Europe. There are numerous records for 

 Spirillina margaritifera, but some of them evidently are not like the 

 original and belong in different species, as is noted in the synonymy 

 of some of the following species. Some of the figures referred by 

 Heron-Allen and Earland to Spirillina vivipara ^ seem to belong 

 to Williamson's species. They arc from the West of Scotland. 

 Some of the records of S. tuherculata from about the British Isles are 

 evidently this species. 



SPIRILLINA OBCONICA H. B. Brady (?) 



Plate 1, figures 8-10 



Under this name Heron-Allen and Earland record and figure 

 specimens from the Clare Island region of Ireland.^ Their figures 

 are copied here. The types of this species are from the South Pacific 

 and Antarctic, and there are numerous other records from the South 

 Pacific. Their original figures of Irish specimens are here copied 

 as well as a figure of a specimen kindly sent me by Earland from 

 Porcupine Station 7, Third Cruise 1870, 48° 18' N.; 9° 11' W.; 93 

 fathoms. 



Spirillina obconica — Material examined 



SPIRILUNA LATESEPTATA Terquem 



Plate 1, figures 12, 13; plate 2, figure 1 



Spirillina lateseptata Terquem, Ess. Anim. Dunkerque, 1875, p. 21, pi. 1, 



fig. 6. 

 Spirillina vivipara Ehrenberq, var. carinata Halkyard, Trans. Manchester 



Micr. Soc, 1889, p. 69, pi. 2, fig. 6. — Sidebottom, Mem. Proc. Manchester 



Lit. Philos. Soc, vol. 52, No. 13, 1908, p. 8, pi. 2, fig. 4. 

 Spirillina obconica H. B. Brady, var. carinata Heron-Allen and Earland, 



Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 109, pi. 9, figs. 6, 7; Trans. 



Linn. Soc. London, ser. 2, vol. 11, 1916, p. 269; Journ. Roy. Micr. Soc, 



1916, p. 49; British Antarctic Exped., Zoology, vol. 6, 1922, p. 195; Journ. 



Roy. Micr. Soc, 1930, p. 180. 



1 Trans. Linn. .Soc. London, ser. 2, vol. 11, 191C, pi. 42, figs. 23, 24. 

 » Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 108, pi. 9, figs. 8, 9. 



