72 CH,ETOPLEURA. 



Tonicia fulva GRAY, P. Z. S. 1847, p. 67, and of CPR., MS. Ch. 

 fulvus " var. f (yelatus)" SOWB., Conch. Illustr. no. 69, f. 53 (no 

 desc.). 



Doubtful synonyms : Chiton angulatus SPENGLER, Skiivter af 

 Naturhist. Selsk. iv, p. 71. Chiton ferruginem SPENG., 1. c., p. 72. 

 Cf. Morch, Mai. Blatter, xvii, p. 111. Chiton lusitanicus TILESIUS, 

 Jahrbuch der Naturgeschichte i, p. 221, t. 6, f. 3, 4, 5, (Leipzig, 

 1802). Chiton candisatus gaditanus CHEM., Conch. Cab., x, p. 374, 

 t. 173, f. 1691. 



Wood has given a perfectly recognizable portrait of this species ; 

 and I have therefore hesitated to disturb the current use of his speci- 

 fic name in favor of those proposed by either Spengler or Tilesius, 

 about which there is more or less uncertainty. 



This species has hitherto been classed in Tonicia, but the total 

 absence of eye-spots, the hairy girdle and the less obtuse teeth show 

 it to belong rather to Chcetopleura. 



Said to have been taken at Cape Horn on ships cable, but this 

 locality requires confirmation. 



C. PAPILIO Spengler. Vol. XIV, pi. 44, figs. 57, 58, 59, 60, 61. 



Shell oval, rather elongated, elevated, the dorsal ridge obtuse. Of 

 a deep chestnut color. 



Valves deeply indented at the sutures ; lateral areas moderately 

 raised, and (with the end valves) generally marked with delicate 

 radii ; central areas having some delicate longitudinal striae. Pos- 

 terior valve with the mucro central and rather elevated. 



Interior: posterior valve having 8-10, central valves 1-1, ante- 

 rior valve 8-10 slits ; teeth acute ; sinus rather wide, flat, laminate, 

 with a slit at each side. Eaves solid. 



Girdle wide, clothed with rather stout and long curling black 

 hairs. 



Length 63, breadth 33 mill. ; divergence about 105. 



Cape of Good Hope. 



Chiton papilio SPENGLER, Skrivter af Naturhistorie-Selskabet, iv, 

 p. 86, t. 6, f. 15. Ch. castaneus QUOY & GAIMARD, Zool. Astrol. p. 

 387, t. 74, f. 33, 34. Ch. watsoni SOWB., Mag. of Nat. Hist. 1840, 

 p. 288; Conch. Illustr., f. 81, 82, 130. KRAUSS, DieSiidafrik. Moll, 

 p. 41. REEVE, Conch. Icon, iv, t. 6, f. 32a, b. Chcetopleura watsoni 

 THIELE, Das Gebiss d. Schn. ii, p. 380, t. 31, f. 15 (dentition.) 



