68 CALLOCHITON, 



Chiton t'UHjnhn us DKSH., Catalogue des Mollueques de File de 



IJrunion, p. 40, t. 6, f. 4-7. Chiton (Lepi<l<>/>/enni.^ itnmjul 

 MAKTKNS in Mobius' R i-r nach Mauritius, p. 300. Qtlfochiton 

 i ii M.I.I:. I >a> ( Jrhi.-s (1. Sclin. ii, p. 392, t. 32, f. 9 (denti- 

 tion.) 



Figure 27 is inucli enlarged. Deshayes compares this species to a 

 dried drop of blood. 



TKA< IIYKADSIA Cpr., 1878. 



Trachyradtia (Yi:. in Dull, (part) 1878, type Ch. fnltjctnuit 

 vide Manual, xiv, p. <S3. Stereochiton (Yi:. in Dal 1, 1882, type Ch. 

 castanetts Wood ; ,-ide Manual xiv, p. )'!. 



Valves almost smooth, hut minutely granulated or punetulate 

 having -e\vral slit- in each side insertion-plate, very spongy eaves, 

 and shallow sinus, across which the sutural laininie are connected 

 (see vol. xiv, pi. J), lig. 90). Girdle bearing minute downy Si 

 Distribution S. Africa and Tasmania. 



This group, as here reformed, claims kinship with ( 'ullochiton ; 

 and so dose is the alliance that it has been by Carpenter and myself 

 ranked as a suhgenus or section under that genus. The North 

 Pacific forms formerly referred here have been given place under the 

 genus Trachydermon, in the section Spongioradsia. 



('. DI;NI -ATI > Sp( -ngler. ( C. fulgelrum Reeve. Vol. xiv, p. 83). 

 The Chiton p/anatiw Speugler (Skrivter af Naturhigl-Selflk. iv, p. 



91), is probably the same as C. dentatus of the same author (I. c., 

 p. 88), and both seem to agree with C.ful'/ftrmn Keeve. Both are 

 said by Spenirler to be from the Cape of Good Hope. See also Mai. 

 151. xvii, p. 113. 



C. CAM \M OB Wood. (Vol. xiv, p. 52.) 



Spenglrr's ( Intuit />!<<>/<>, . /. c., p. !M), p. 6, f. 18) is this -pecirs, and 

 the name has priority, but cannot fairly be adopted on account of 

 the previous use of the name liimlor by Gmelin, for a smooth species 

 apparently dilli-ivnt and distinct. 



C. IN"KNA I T> Teilison-Wonds. 1M. I-",, ligs. 0-., (\-\ . 



-hell ova), thin, depressed, of a uniform deep brown, very finely 

 dotted all over with minute depressions like the top of a thimble; 



valves of a uniform width, keeled, slightly braked : lateral areas very 

 little elevated, with obsolete radiate .-triations; central areas finely 



