90 TONICIA. 



few longitudinally arranged on the pleura. Triangular punctures 

 elongated, as if engraved with the point of a burin, largest and 

 sparsely distributed on the central areas, and on the lateral areas 

 radially grouped among the rays of tubercles. Posterior valve 

 obtusely umbonated, carinated on each side. Pale flesh colored 

 maculated with dark green, the spots regularly placed, nearly cover- 

 ing the second valve and sides of the fifth and last valves ; on the 

 rest of the surface smaller, hardly noticeable, and scattered. Girdle 

 rather wide, nude, reddish. 



Length 10, width 5 mill. (Sow.) 



Island of Art, New Caledonian Archipelago, one specimen in 

 Bordeaux Mus. 



Chiton insculptus Souv., Journ. de Conch. 1866, p. 248, t. 9, f. 5. 

 Not Ch. insculptus Ad. Chiton montrouzieri Souv., /. c., 1873, 

 p. 287. 



This species is extremely near to T. confossa Gould. It was 

 described from a single specimen which may not be adult. 



Adams' C. insculptus being a typical Chiton (vol. xiv, p. 177), the 

 change of name proposed by Souverbie becomes unnecessary. 



T. FLOCCATA Sowerby. PL 14, figs. 3, 4. 



Shell oval, depressed, narrowed in front; pale tawny maculated 

 with black, brown, green and rose color. End valves radially sili- 

 cate. Median valves with a single rib on each side; the central 

 areas longitudinally sulcate, lateral areas granulated, margins 

 serrated. Terminal valve obtusely elevated. Margin red or brown, 

 banded with white patches and dots. 



Length 20, breadth 1H mill. (Sowb.) 

 Cagayan, Misamis, Island of Mindanao, Philippines (Cuming.) 



Chiton floccatus So WE., P. Z. S. 1841, p. 104. EEEVE, Conch. 

 Icon, iv, f. 117. 



This species is found at Mindanao under stones at low water, and 

 at Calapan on small stones at a depth of 15 fms. The margin is 

 sprinkled with white patches resembling flakes of snow, on a reddish- 

 brown ground. (Sowb.*) 



Carpenter gives the following descriptive notes on the types : shell 

 moderately elevated, oval. Jugum not sharp, more or less variegated 

 with chestnut-brown, olive, pink and ashy. All of the valves are 

 somewhat thrown forward, with blunt beaks ; jugal areas not defined 



