' III 

 ( '. i Souverbie, I'l. <'">. il^. '!, 4. 



Shell ovate-ohlonir, the hack earinatt-d, nmhoiMS HihroMi 



-ii .r yrllowish-ivd, with lon<rit udina I more or ]e.~s pallid 

 and more or less numerous spots. Knd vnlvt-s oi namentcd with 

 ahoiit L'H radiatin. luhercles (some of tli< 



being shorty intercalated between the other-); lateral areas having 

 three scries of tuherdes and a fourth intercalated shorter series. 

 Central areas sculptured on each side of the smooth dorsal carina 

 with impressed, suhohliquely longitudinal grooves. Girdle leathery 

 and scaly. Dimensions, exclusive of the girdle, which is very incom- 

 plete in our two examples (probably immature) ; length 19, breadth 

 mill. (6W.) 



Art J*/nnd, N. Caledonian Archipelago (Mus. Bordeaux.) 



Chiton decolor Souv., Journ. de Conch. 1866, p. 252, t. 9, f. 1, la. 

 C. miniacens CPU., J/\, Mus. Cuming. 



Carpenter's unpublished species seems to be the same as this, 

 although until the types of discolor are examined, we cannot be 

 certain. Carpenter's description here follows: 



C. miniacen* Cpr. Shell elevated", oval, the jugum acute ; vivid 

 vermilion, the margin tessellated with paler. Mucro median, little 

 el'-vated. Entire surface minutely punctate; central areas having 

 about 25 subparallel grooves on each side, obsolete on the dorsal 

 ridge ; lateral areas elevated, bearing 3-4 strong, radiating line, 

 which are strongly nodose. End valves having about 20 line. 

 Interior: anterior valve having 8, central 1, posterior 10 slits; teeth 

 deeply pectinated; sinus wide, minutely denticulated. Girdle 

 covered with normal imbricating scales. 



Length 27-1, breadth 20 mill.; divergence 100. 



New Caledonia. 



MILS. Cum., no. 59. Easily recognized by the strong sculpture 

 and brilliant vermilion color. (Q>r.) 



( . MTRICATUS A. Adams. PI. 37, figs. 12, 13. 



Shell oblonir, much elevated in the middle; black-brown and 

 white variegated. Knd valves and /titrml urem* n/'/m/r/// i-illictl, 

 the ribi Ornamented n'if/i dcmlcd acute f/niinn: tail valve umbon- 

 ated in the middle. Central areas longitudinally deeply lirate, the 

 umhoiics smooth, elevated, somewhat produced. (Jirdle scaly, the 

 scales mucronatcd, imbricating, with subenrt apices. 



