346 SUB ANTARCTIC ISLANDS OP NEW ZEALAND. [Furawiiiijcra. 



Cristellaria orbicularis, d'Orbigny sp. 



Rohulina orbicularis, d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 288, pi. xv, 



figs. 8, 9. Cristellaria orbicularis. d'Orb., Brady, 1884, Rep. Cliall., 



vol. ix, p. 549, pi. Ixix, fig. 17. C. orbicularis, d'Orb. sp., Flint, 1899, 



Rep. U.S. Nat. Mus. for 1897, ]). 317, pi. Ixiv, fig. 3. 



Distribution. — Dr. Brady notes this form from one station in the North Atlantic, 



and from five in the South Pacific, including a station oft" the west coast of New 



Zealand, at 150 fathoms ; Dr. Flint records it from the Gulf of Mexico ; also from 



Great Barrier Island, New Zealand, by the writer. 



Present Occurrence. — Off the Snares ; 60 fathoms ; very rare. Twenty miles 

 north of Auckland Island ; 85 fathoms ; very rare. Ten miles north of Enderby 

 Island ; 85 fathoms ; common. 



Subfam. POLYMORPHININAE. 



Genus Polymorphina, d'Orbigny, 1826. 



Polymorphina lactea, Walker and Jacob sp. 



Serpiila lactea. Walker and Jacob (fide Kanmacher), 1798, " Adams's 

 Essays," 2nd ed., p. 634, pi. xiv, fig. 4. Polymorphina lactea, W. & J. 

 sp., Brady, -Parker and Jones, 1870, Trans. Linn. Soc. Lond., vol. xxvii, 

 p. 213, pi. xxxix, figs. 1, a-c. P. lactea, W. & J. sp., Brady, 1884. 

 Rep. Chalk, vol. ix, p. 559, pi. Ixxi, fig. 11. 



Distribution. — A common form in shallow water. Occasionally found at con- 

 siderable depths, but always of smaller size than in ty^fsical specimens. It occurs on 

 nearly all shore-lines. Dr. Brady states that its southern limit appears to be the 

 Cape of Good Hope. 



Present Occurrence. — Ten miles north of Enderby Island ; 85 fathoms ; very 

 rare. 



Polymorphina lactea, W. & J. sp., fistulose var. diffusa, Jones and Chapman. 

 (Plate XVI, fig. 7.) 



Polymorphina lactea, W. & J. sj)., var. diffusa, Jones and Chapnum, 1896, 



Journ. Linn. Soc. Lond., Zook, vol. xxv, pp. 499, 505, fig. 28. /-'. lactea, 



W. & J. sp., var. diffusa, Jones & Chapm., Chapman, 1907, Journ. 



Quekett Micr. Club, p. 131, pi. x, fig. 1. 



This is a fistulose variety of the typical form, in which the tubular outgrowths 



are scattered over the surface of the test. The original figure is based on that of a 



specimen illustrated by Terquem, and occurring in the Pliocene of the Isle of Rhodes.* 



Distribution. — This variety is likely to occur wherever the type form is found. 



It was recently found by the writer in shore-sand at Torquay, near Geelong, Victoria. 



Present Occurrence. — North-east of Bounty Island ; 50 fathoms ; one example. 



* " Potijmorphitia solidula" Mem. Soc. Geo). France, ser. 3, vol. i. No. 3, 1878, p. 40, pi. iii (viii) 

 fit;. 33. 



