SUBANTARCTIC ISLANDS OF NEW ZEALAND. [MuUu:ica. 



Faiii. CHITONIDAE. Pilsbry. 

 ({enus Chiton, Linne, 1758. 

 Distribu/ioH. — \Vi)rl(l-\vi(le. 



Chiton aereus. Reeve. 1847, var. 



CJritoH aereus. Reeve, Conch. Icon., pi. vii, fig. 36 ; Voy. Ereb. and T(>rr.. ])1. i. fig. 9 : 

 Man. Conch. (1), xiv, p. 179, pi. xxxvi, figs. 96-97. 



//«6.— Auckland Islands (Captain J. Bollons). 



Littoral and laminarian zone, from the Bay of Islands to the Blufi'. 



The only specimen from the Auckland Islands is brownish-red, the central 

 areas are not shagreened, and more" of the outer furrows on the pleura extend the 

 whole length than is usually the case. 



(ienus ( )nithoc'hiton, (iray, 1847. 

 Distribution. — From C*ape of (lood Hope to New Zealand. 



Onithochiton undulatus subantarcticus, Suter, 1907. 



Chiton umhdatus, Quoy and (laimard, Voy. "Astrolabe," iii. 1835, ]). 393, pi. Ixxv, 

 figs. 19-24. " 0. und. suhantnrcticus, Suter, T. N.Z.I. , xxxix, 1906 (1907), 

 p. 268. 

 This colour varietv is usually uniform chocolate or purplish-brown, sometimes 

 with white patches on the ridge, or with white concentric lines. 



Hah. — Auckland Islands (Professor Benham) ; Campbell Island. 

 Also New Brighton a.nd Cook Strait. 



Fam. ACMAEIDAE, Philipjn. 

 (ienus AfJiAEA, Esehscholtz. 1830. 

 Distribution. — World-wide. 



Acmaea intermedia, Suter, 1907. 

 Acmaea internu'dia. Suter. P. Mai. S., vii, 1907, p. 316, ])1. xxvii. figs. 6-8. 



Shell with 25 to 50 sjuooth radial riblets, wliicli are sharp, and there are usually 

 no secondary shorter riblets ; spatula dark-brown. 



Hah. — Near the Bounty Islands, in 50 fathoms (Captain .1. Bolh.ms). 



Acmaea roseoradiata, Suter. 1907. 

 Acmaea roseoradiata, Suter, P. Mai. S.. vii. 1907, p. 317. pi. xxvii. figs. 9, 10. 



Shell very small, 3-5 by 2-5 by 1-5 mm., smooth, whitish with 10 radiate pinkish 

 rays. 



//ri6. -Near the Snares Islands, in 50 fathoms (Captain J. Bollons). 



Also Stewart Island, Dusky Sound, and Taumaki Island, in 10-30 fatJioms. 



