acm.i:a. 59 



Inside white, usually showing the brown stripes faintly through ; 

 central area usually brown or outlined with brown, clouded with 

 light blue in the middle. Length 22, breadth 17, alt. 9 mill. 



2\iS7nania. 



A. criicis T.-W., Proc, Roy. Soc. Tasm. for 1876, p. 52, and 

 animal p. 53, 1877. 



Perfect, unworn specimens do not show the maltese cross of brown 

 at the apex, it being covered by the outer layer ; and they have a 

 narrow brown border. 



The figures represent specimens somewhat worn, 



A. ELONGATA Quoy and Gaimard. PI. 37, figs. 86, 87. 



Shell small, ovate-elongated, fragile and pellucid ; subconvex, 



smooth, greenish, ornamented with longitudinally reticulating reddish 



lines; inside white; apex marginal. Length 6, width 4 mill. (Q.) 



King George Sound, S. W. Australia. 



Patelloida elongata Q. & G., Astro!., p. 358, t. 71, f. 12-14. 

 A, PUNCTATA Quoy & Gaimard. PI. 37, figs. 88, 89. 



Shell small, oval, fragile, convex, smooth, whitish or buff, very 

 delicately dotted with reddish ; inside white, apex obtuse, at the 

 margin. Length 6 mill. (Q.) 



King George's Port, S. W. Australia. 



Patelloida punctata Q. & G., AstroL, p. 365, t. 71, f. 40-42. 

 A. FRAGiLis Quoy & Gaimard. PI. 37, figs. 14, 15. 



Shell membranaceous, pellucid, ovate, flattened ; smooth, green, 

 ornamented with concentric brown rings ; inside with an emerald 

 ring around the muscle-impression, margin brown. 



Length 15, width 12, alt. 2 mill. 



The apex is anterior, sub-marginal, a little to the left of the 

 middle. 



Kast Coast of the North Island, New Zealand, under stones. 



Patelloida fragilis Q. & G., Voy. Astrol. iii, p. 351 1. 71, f. 28-30. 

 — Lottia fragilis Gray, Dieff. N. Z. ii, p. 240, — Acmcea fragilis 

 HuTTON, Man. N. Z. Moll. p. 89, 1880. — Patella solandri Colenso, 

 Tasmania Journal of Natural Science ii, pp. 226, 250, 1841 ; Trans. 

 N. Z. Institute, xiv, p. 168, 1882. — P. unguis-almce Lesson, Voy. de 

 la Coquille, Zool. ii, p. 420. 



This is one of the most peculiar and distinct species. In its flat, 

 scale-like form and green color it is unlike anything else. 



