\- kHTB i 



deO.nch. 1862, |>. 7 I . \V i INK M i i , '. , ., 



orimha Sows,, Conch, I Must r., p. _'. f. 88, 88a, 1)3. Tii.i:ri . : 

 Mar. Conch., p. 251, 1844; not of Pennant. i 



Hi >. DM i/. A DOLLF., M..II. K.,II. i. ; 



f. 7. ? Acanthochfos communii IJi.-><>, Hist. Nut. ! I'Kur. M-'rid., 



iv. p. 269. 



Smith (P. /. S. I SIM, p. .'WlM report thi< Bpeciec from Aden, 

 remarks that he cannot separate C. scntiyer Ad. & I,' . < n-an 

 Archipelago, and C. carinatus A. Ad. & Ang. from Port Jackson, 

 from this species. 



A. discrepant is readily distinguished from A. f>t.-;m !,',< l,y its 

 larger size, the much smaller, more numerous and round instead .f 

 oval granules; the less conspicuous tufts, etc. 



A. ADANSONI Rochebrune. PI. 8, figs. 33, 34. 



Shell elongated, whitish-violaceous, with black and green spots; 

 anterior valve semilunar ; posterior valve small ; intermediate valves 

 triangular, nearly concealed, closely and very minutely .squamn' 

 anterior areas of valves narrow, very smooth and longitudinally strio- 

 late ; marginal ligament wide, pilose, hairs coarctate, generally red- 

 dish, and with 9 bunches of glossy, roseate, slightly yellowish bristles. 



Length 20, breadth 8 mill. (Eocliebr.} 



Strait of Santiago ; Saint Vincent, Cape Verde Archipelago ; 

 Goree and Dakar, West Africa. 



Acantliocliites adansoni ROCHEBR., Journ. de Conchyl. (3) xxi, 

 p. 44 (1881); Bull. Soc. Philomath, de Paris, 1880-'81, p. 1K> ; 

 Nouv. Arch, du Mus. (2), iv, p. 238, t. 17, f. 9a, b.K 

 ADANSON, Voy. au Senegal, pt. 2, p. 42, t. 2, f. 11 (young individual, 

 ieste Rochebr.) 



The posterior valve is excessively narrow, rounded, almost entirely 

 covered by the girdle ; median valves triangular, carinated, the 

 carina obtuse, covered with ovoid scales regularly arranged in 

 radiating lines ; middle of the valves narrow, very finely sti i 

 longitudinally. (Rochebr.') 



The notes given under A. bouvierion Rochebrune's figures of that 

 species, apply also to this. They are false in most particulars. 



A. BOUVIERI Rochebrune. PI. 3, figs. 65, 66. 



Shell elliptical, carinated, black. Anterior valve elongated ; pos- 

 terior valve rounded; median valves triangular, wide, Un- 

 covered with minute points ; anterior area very narmw, transversely 



