in i..\ i: \ i. -ii 1.1 \. 



yellowish or greenish, and regularly .-potted \\itii i.n,\\n. ; 



is narrow, yellowish ; tin- ;ills almo.-t reach the head. 

 Length 1*. breadth 1'J, alt. 1 mill. 



I'nrt ( '///';//, A'< 



Chiton teasel In ht.< ({. & (J., Yv. <!< PAstrol., Xooi. iii, j,. 

 atlas, t. 75, f. 48-47. 



The description is troin that of Quoy and Gaimard. The coloi 

 is probably less vivid than shown in their phite. The artist of tin- 

 'Astrolabe' seems to have had an irrepressible fondness for green. 



I. ARBUTUM Reeve. PI. 24, figs. 16, 17. 



Shell ovate, terminal valves and lateral areas of the rest retieulatt-1 \ 

 decussated with grained striae diverging off posteriorly ; central areas 

 very closely sculptured with blunt squarish granules; green or red- 

 dish, dotted with black; ligament squamately coriaceous, tessellated. 

 (Jfoe.) 



1'ort h**tn<: 



. C. arbutum Rv., Conch. Icon., t. 24, f. 162. 



Carpenter thinks this is probably a color variety of/, adelaidensia^ 

 He gives the following notes on the 8 specimens in the Cuming 

 collection: Shell ovate, tolerably elevated, rather broad ; ju<ru m 

 more or less obtuse. Reddish orange, olivaceous or light ash, more 

 or less spotted and clouded, but always with a very fine tessellation of 

 dark and light along the sutures. Mucro in front of the middle, 

 the slope behind it concave ; intermediate valves oblong, not beaked ; 

 central areas coarsely and very regularly quincuncially granulated 

 with large grains ; lateral areas very slightly raised, with about ^ 

 rows of larger grains. End valves with similar grains, which are 

 radiating but scarcely in lines. Interior: anterior valve havin- 



II, central valves 1, posterior valve 16 slits: teeth quit 

 typically Ischnoid ; eaves large, not spongy. Girdle tesst Hand with 

 olive and light, covered with imbricating short roundish and quite 

 smooth scales. Length 12^, breadth 8 mill. 



Section Radsiella Pilsbry, 1892. 



Radsiella PILS., Manual of Conch. (I) xiv, p. ~A .Inly i5, 1892). 

 Type, /. tridentatm Pils. Jschnoradsia^Miri^i i :i: MS. and DAI i . 

 Proc. U. S. Nat. Mus. 1878, p. 331. Not M//o/-,/,/.</./ SHOT n .\\.. 

 185,3. 



Valves and girdle entirely similar to those of the mu-ma! 



