ON THE HYDROIDS OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 521 



Arranging the Scotia specimens according to the localities in which they were 

 obtained, we get the following list : — 



Antarctic Pelagic Eegion. 



(a) Antarctic circumpolar subregion. 



Nil. 



(b) Southern circumpolar subregion. 



Burdwood Bank, 54° 25' S., 57° 32' W. 56 fms. 1st December 1903. 



* Hebella striata, Allm. 



* Galycella syringa, Linn. 

 Lafoea antarctica, Hart. 



* „ gracillima (Alder). 



* Grammaria magellanica, Allm. 



* Halecium heanii, Johns. 



* Synthecium robustum, Nutt. 



* Sertularella filiformis, var. reticulata, n. var. 



* ,, tenella, Alder. 



* ,, tricuspidata, Alder. 



Antarctic Littoral Region. 



Falkland Islands. 



(a) Port Stanley. 8th January 1903. 



* Campanularia ungulata, Hinks. 



„ tineta, Hinks. 



Sertularella contorta, Kirch. 

 Plumularia magellanica, Hart. 



(b) Cape Pembroke. January 1903 to January 1904. 



Sertularella contorta, Kirch. 

 South Orkney Islands. 



(a) MacDougall Bay. November 1903. 



Obelia longissima, Pall. 



(b) Scotia Bay. 25th March and 6th December 1903. 



Campanularia, sp. 

 Obelia longissima, Pall. 



* Halecium interpolatum, n. sp. 



* Staurotheca reticulata, n. sp. 



* Sertularella rectitheca, n. sp. 



Station 411, off Coat's Land, 74° 1' S., 22° 0' W. 12th March 1903. 

 Hebella striata, var. plana. 

 Halecium robustum, Allm. 



Gough Island. 22nd April 1904. 



Silicularia hemispherica, Allm. 

 Obelia geniculata, Linn. 



* Brucella armata, nov. gen. et sp. 

 Halecium tenellum, Hinks. 

 Sertularella gayi, Lamx. 



Cape Colony. 



(a) Cape Town Docks. May 1904. 



Plumularia echinulata, Lamk. 

 ,, pinnata, Linn. 



* Indicates a new record for the Geographical Region. 



