\< \N i ii. , in M-. 29 



. with '> whitish tufts. Length 'J.">. width 11 mill. / 

 in BulLBoa Philom. Paris, l-ssj '82, p. 



JI"//'i,i'l Dii-siimiri 



AcANTiiociiiTis rUBGIDUfl Kochebr. Shell small, ovate. ,,l, long, 

 pah- huff. Anterior valve elongated, posterior rounded, m-arly <-ou- 

 cealed : intermediate valves rounded, covered throu.irhonf with 

 swollen tubercles. Girdle gray, with !) blue tufts. Length 10. 

 breadth li mill. (Rocln-br. in Bull. Soc. Philom. 1 *s 1 



New Holland (Peron it Lesueur ; Paris Mus.; 



Ks .ifcuNDUS Rochebr. Shell ovate-el 01 1 irate, huff, 

 with emerald-green lines and spots. Central areas of intermediate 

 valves smooth ; lateral areas sculptured with radiating beaded lines. 

 Girdle wide, roseate, with 9 green tufts. Length 24, breadth l.'I 

 mill. (Rochebr. in Bull. Soc. Philom. 1881-'82, p. 194.) 



.Y'-ie> Holland (Belligny) ; Cook's Strait* (Filhol). Not common ; 

 Paris Mus. 



ACANTHOCHITES STERCORARius Rochebrune. Shell elliptical 

 rather flat, dull olivaceous; anterior valve rounded; posterior 

 small, swollen ; intermediate valves with the central area rugose, 

 lateral areas covered with wide, concentric imbricating sulci. Girdle 

 wide, thick, shistaceous, with 9 greenish bunches. Length 

 breadth 13 mill. (Rochebrune, in Bull. Soc. Philomath, de Paris, 

 1883-'84, p. 32, 1884.) 



Cape Roxo, west coast of Africa (Pari- v 



ACANTHOCHITES BELLIGNYI Rochebrune. Shell elongated ; 

 ashen, marbled with white and tawny. Anterior valve rounded 

 elliptical, posterior very minute; intermediate valves having the 

 central areas smooth, lateral areas concentrically scaly, ^ 

 spatuliform. Marginal ligament rather wide, brown, with D blue 

 bunches. Length 15, breadth 8 mill. (Rochebr., in Bull. S 

 Philom. Paris, 1883-'84, p. 37, 1884.) 



New Caledonia (Pari> Mu>. 



A< \N i IIH in i -i> DAXAELEN8I8 Kochebr. Shell elongated, hull', 

 with a conspicuous black spot ; anterior valve broad, rounded; pos- 

 terior valve nearly covered, semi-lunate; intermediate valves 

 rounded, scale-shaped, beaked behind, granulose, the irrai 

 imbricated : anterior area of the valve- wide, longitudinally su: 

 the sulci chain-like. Marginal ligament wide, pilose, black i.-h. beset 



