raved will) brick-red, (or " copperat-jpreen or reddish, i 



ss tlamed \villi jet-l>lael 



Tin- lateral -in. -\\hai '. itli 



11 inn ' - " , ii'/ti'-lt 



rnpted by grow th-lines. Central I dptim-d \,\ 



irniwth-wrinkles. and by //m' /n</iti<(li>i<il flirentlx. ir/n'r/i nrr, <; 

 nil]! ol>*/rtr "i- ,ilw)it or/-/*/ mi f/inj;-nnt of //<>- dnrnnl r'i<\<ji> of 

 Wive, Kml valves having radii like tin- l:it-r:il areas, their uneven- 

 ness iriviiiL: the valve a superficially pitted or tinely netted apt 

 anee. l>eak of tail valve near the anterior margin. 



Intoriur pale l)Ini>h, the sutural-plates whiter. Anterior valve 

 having 15, central 1, postrrim- valve 20 slits; teeth rather sharp- 

 I, strongly crennlated inside and out; sinus-area spongy ; slits 

 ami slit-rays coarsely sponiry. Kaves short. 



Girdle densely covered with fine, smooth, convex, shining, black 

 or olive-black scale-. 



Length 4'J, width '24 mill.; divergence 110. 



Island of Chiloe (Cuming) ; Chili. 



Chiton *nhi'n.<cn.-< SOWERBY, P. Z. S. 1832, p. 26. CA/Vo// .<triatus 

 Bttrnw, Si.wi;., Com-hol. Illustr., f. 3, 41 (excl. synoii. i. ('. 

 l!i:r.vi:. Conch. Icon., t. 1, f. 36. Not Chitim *triutu.< 



This species is closely allied to C. mmjnifn'U8j but differs in being 

 smaller, narrower and more elevated, in lacking l)lue dots, and in 

 the partial obsolescence of the longitudinal striation of the central 

 areas. Figure 19 represents the form which judging by his measure- 

 ments Sowerby considered typical. He aftewanl united o//V 

 A////.N- and atr'nilii* (all of which=mo^nt/S(n Dh.) with .<?//>/'/ 

 Reeve adopted the name .s/r/'"/'/., and figured the shell repi-e-eiited 

 by Sowerby's fig. 3 of the " Conchological Illustrations." This is 

 copied in our fig. 20. We are constrained by thetermc ly's 



original description to adopt the folio wir nt. 



Typical tnlniscus Sowb. PI. 38, fig. 19. 



I'alt; ashy olivaceous green, streaked and mottled with black : 

 imdinal seulpture all over the mitral areas, and radiating 

 sculpture on lateral area.-, both .-tr": loped, the latter a little 



interrupted into regulations. 



The relations of this form with m<nji> ;ire inv - 



