Foniiiiiiiijird.] SUBANTARCTIC ISLANDS OF NEW ZEALAND. 353 



as tubercles, owing to a thin, irregular deposit of secondary shell-substance around 

 them. This form is by far the commonest of the genus in the present series. 



Occurrence. — Olf the Snares ; 60 fathoms ; very common. Twenty miles north 

 of Auckland Island : 85 fathoms ; very rare. Ten miles nortli of Knderby Island ; 

 85 fathoms ; frequent. 



Spirillina inaequalis, Brady. 



Spirillina inaequalis, Brady, 1879, Quart. Journ. Micr. Sci., vol. xix, n.s., 

 p. 278, pi. viii. fig. 25. S. ivaequalis, Brady, Egger, 1893, Abhandl. 

 k. bayer. Akad. Wiss.. el. ii, vol. xviii, p. 394, pi. xviii, figs. 40-42. 

 Distrihution. — Previously recorded from the islands of the Pacific, and from the 

 Mauritius, and Western Australia. 



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

 exam})h^. 



Spirillina decorata, Brady. 



Spirillina decorata, Brady, 1884, Rep. OhalL, vol. ix, p. 033, pi. Ixxxv, 



figs. 22-25. *S. decorata, Brady, Egger, 1893, Abhandl. k. bayer. Akad. 



Wiss., cl. ii, vol. xviii, p. 394, pi. xviii, figs. 64, 65. 



Distribution. — Brady records this species from the South Pacific, among other 



localities ; Egger obtained it from west Africa, the Mauritius, and Western Australia ; 



Millett found it in the Malay Archipelago. 



Present Occurrence. — Off the Snares ; 60 fathoms ; one fine example. 



Spirillina spinigera, Chapman. 



Sjyirillina spinigera. Chapinan. 1900, Journ. Linn. Soc. Lond., Zool., vol. 

 xxviii, p. 10, pi. i, figs. 7 a-c ; idem, ibid., 1901, vol. xxviii, p. 188 

 pi. xix, figs. 9, 10. S. decorata, Brady var., Sidebottom, 1908, 

 Mem. & Proc. Manch. Lit. & Phil. Soc, vol. Hi, pt. iii, p. 8, pi. ii, fig. 6. 

 ( )ur sjjecimen bears a few peri^jheral spines, and is quite typical in other re- 

 spects. Mr. Sidebottom refers this form to S. decorata, to which it certainly bears 

 some alliance ; it has, however, the constant character of being piano - convex, 

 whilst »S. decorata is typically biconvex. 



Distribution. — This interesting little form was originally described from Funa- 

 futi, where it occurred both in the lagoon (7^ fathoms) and outside the atoll (32 to 

 200 fathoms). It was also found in the boring in the lagoon at 62 ft. below the 

 floor. Mr. Sidebottom's specimens are recorded from the Island of Delos, and from 

 Raine's Islet, Torres Strait. 



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



Spirillina limbata, Brady. 



Spirillina limbata, Brady, 1879, Quart. Journ. Micr. Sci., vol. xix. n.s., 

 p. 278, pi. viii, fig. 26. S. limbata, Brady, Egger, 1893, Abhandl. k. 

 bayer. Akad. Wiss., cl. ii, vol. xviii, p. 395, pi. xviii, figs. 43, 44. 

 The examples in the present series are generally typical, but there is a tendency 

 for some of the specimens to vary towards S. inaequalis, Brady. 

 23— S. 



