ACM^EA. 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. 



Tasmania. 



A. crucis 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 Gaiinard. 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. (.) 



King George Sound, S. W. A ustralia. 



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

 A. PUNCTATA Quoy & Gaimard. PL 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. 



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



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

 Lottia fragilis GRAY, DiefF. N. Z. ii, p. 240, Aemcea 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. 



