246 " ENDEAVOUR " SCIENTIFIC RESULTS, 



specimens, vary from one to four. They are of an elongated 

 ovate form, smooth, apparently not compressed, and the 

 top is rounded, with a small circular aperture, which has 

 the rim thickened, but not forming an elevated collar. Their 

 length is about 1.4 mm., their diameter at the widest part, 

 which is not far from the summit, about .6 mm. 



Locs. — Forty miles west of Kingston, South Australia, 30 

 fathoms. 



Fifty miles south of Cape Wiles, South Australia, 75 

 fathoms. 



Family HALECIID^. 



Genus Halecium, Oken. 



Halecium flexile, Allman. 



Halecium flexile, Allman, Rep. Sci. Results " Challenger " 

 Exped., Zool., xxiii., Hydroida, pt. II., 1888, p. 11,. 

 pi. v., fig. 2, 2a. Id., Jaderholm, Arkiv. f. Zool. k. 

 svenska Vetenskapsakad., i., 1903, p. 265. Id., 

 Thornely, Report on Pearl Fisheries of the Gulf of 

 Manaar, Suppl. Rep. viii., 1904, p. 112. Id., Hartlaub^ 

 Zool. Jahrb., Suppl. vi., iii., 1905, p. 611, figs. J3, K3. 

 Id., Jaderholm, Schwedischen Siidpolarexp., v., 1905,^ 

 p. 13. Id., Billard, C.R. Acad. Sci., cxlvii., 1908, 

 p. 1355; M, Billard, Ann. Sci. Nat., Zool., (9), xi., 1910, 

 p. 3. Id., Ritchie, Mem. Austr. Mus., iv., 16, 1911, p. 

 811. Id., Stechow, Abh. math.-phys. Klasse der K. 

 Bayer Akad. der Wissensch., iii. Suppl. -Bd., 1913, p. 

 81, figs. 45-49. Id., Briggs, Rec. Austr. Miis., x., 10, 

 1914, p. 286. 



Halecium gracile. Bale, Proc. Linn. Soc. N.S. Wales, (2), iii.,. 

 1888, p. 759, pi. xiv., figs. 1-3 ; Id., Bale, Proc. Rov. 

 Soc. Vict., (n.s.), vi., 1893, p. 99. Id., Clarke, Bulk 

 Mus. Comp. Zool. Harvard, xxv., 1894, p. 74. Id., 

 Jaderholm, Arkiv. f . Zool. k. svenska Vetenskapsakad.,. 

 i., 1903, p. 266, pi. xii., figs. 2-3. Id., Billard, Actes 

 Soc. Linn. Bordeaux, Ixi., 1906, p. 70 ; Id., Billard, 

 Bull. Mus. d'Hist. Nat., 1906, p. 329; Id., Billard, 

 Exp. Antarct. fran?., 1906, p. 10 ; Id., Billard, Exp. 

 Sci. du " Travailleur " et du " Talisman ", viii., 1906, 

 p. 163. Id., Motz-Kossowska, Arch. Zool. exp. etgen.,. 

 (5), vi., 1911, p. 335, figs, vii.-viii. 



Halecium parvulum. Bale, Proc. Linn. Soc. N.S. Wales, (2), 

 iii., 1888, p. 760, pi. xiv., figs. 4-5. Id., Marktanner- 

 Turneretscher, Ann. K. K. Hofmus. Wien, v., 1890,. 

 p. 218, pi. iii., fig. 22. Id., Farquhar, Trans. N.Z,. 

 Inst., xxviii., 1896, p. 461. 



