86 MR JAMES RITCHIE 



bearing internode. They are thus closely approximated. The nematophores have a 

 widely expanded, trumpet-shaped mouth, and besides those already mentioned, there 

 are three on each hydrotheca-bearing internode, one median and proximal, standing 

 on a slight angle of the internodal perisarc, two lateral, each borne on a process which 

 rests against the side of the hydrotheca. Only one nematophore occurs on each 

 intermediate internode. 



Gonosome. Not observed. 



Locality, etc. Dredged at the entrance of Saldanha Bay, Cape Colony, in 25 fathoms. 

 Date, 21st May 1904. 



The general architecture approaches that of Antennopsis fascicularis (ALLMAN, 

 1883, p. 24), but there are differences in the proximity of the hydrothecse and in the 

 number and distribution of the nematophores. 



We have named this species after the Scotia the ship of the Scottish National 

 Antarctic Expedition. 



LIST OF LITERATURE CITED. 



ALDER, 1856. Annals and Magazine of Natural History. 



1857. "A Catalogue of the Zoophytes of Northumberland and Durham," in Trans. Tyneside 



Naturalists' Field Club. 

 ALLMAN, 1876. Ann. and Mag. of Nat. Hist., 4th ser., vol. xvii. 



1883. "Report on the Plumularians of the Challenger Expedition," Sc. Reports, ZooL, vol. vii. 

 1888. "Report on the Hydroids of the Challenger Expedition," Part II., Sc. Reports, ZooL, 



vol. xxiii. 



BILLARD, 1904. "Contributions a 1'^tude des hydroides," in Annales des Sc. Nat., vol. xx. 

 BONNKVIB, 1899. The Hydroida of the Norwegian North-Atlantic Expedition 1876-78. Christiania, 1899. 

 HARTLAUB, 1900. "Revision der Sertularella-Arten," in Abh. naturw. Ver. Hamburg, vol. xvi. 

 1904. " Hydroiden," in Resultats du voyage du S. Y. " Belgica " en 1897-99. 



,, 1905. "Die Hydroiden der magalhaensischen Region und chilenischen Kiiste," in Fauna 



Chilensis Supplement VI. to the Zoologische Jahrbiicher. 

 HINKS, 1861. "A Catalogue of the Zoophytes of Devon and Cornwall," in Ann. and Mag. of Nat. Hist., 



vol. xi. 



,, 1868. A History of the British Hydroid Zoophytes. 

 JOHNSTONS, 1847. A Hist, of the Brit. Zoophytes, 2nd ed. 

 KIRCHENPAUER, 1872. " Ueber die Hydroidenfamilie Plumularidse," Part I. Aglaophenia. 



,, 1876. Ibid., Part II. Plumularia u. Nemertesia, in Abh. naturw. Ver. Hambiirg, vol. vi. 



,, 1884. "Nordische Arten und Gattungen von Sertulariden," ibid., vol. viii. 



LAMARK, 1836. Hist. Nat. des aniinaux sans vertebres, 2nd ed. Histoire des Polypes, Paris. 

 LAMOUROUX, 1821. Exposition methodique des genres de I'ordre des polypiers, Paris. 

 LINN^US, 1758. Systema Naturae., ed. 10. 

 NUTTING, 1900. "American Hydroids," Part I. Plumularidae, in Spec. Bulletin Smithsonian Institute. 



1904. Ibid., Part II. Sertularidse, ibid. 

 ORTMANN, 1896. Grundzuge der marinen Thiergeographie, Jena. 

 PALLAS, 1766. Elenchus Zoophytorum, Hague. 

 QUELCH, 1885. Annals and Mag. of Nat. Hist., ser. v. vol. xvi. 

 SARS, 1846. Fauna Littora/is Nonegise, vol. i. 



(ROY. soc. BDIN. TRANS., VOL. XLV., 544.) 



