251 



CHITON CRINITUS Penn. Sowerby Cone. III. f. 

 88. # 93. C. FASCICULARIS Sow. Gen. Wood Gen. 

 Cone. t. 2.f. 6. C. DISCREPANS Brown III. Conch. 

 Oblong, strongly keeled by a dorsal, striated rib ; valves 

 beaked, reniform, finely granulated at the sides, disunited 

 at the extremities ; margin smooth, hairy, fasciculated ; 

 inserted laminae broad; colour various. i...l. Not 



FISSURELLA NUBECULA: Macg. Ab. p. 345. 

 PATELLA N. Turt. D. p. 142. Ovate oblong, coni- 

 cal, little elevated, brownish red rayed with reddish 

 white, with about fifteen broad ribs alternating with 

 smaller, and somewhat reticulated with concentric in- 

 conspicuous lines ; interior purplish white with a ring 

 of pale reddish purple around the thick whitish marginal 

 rim. 0,30...0,16. Aberdeen. 



BULALJS CATENULIFERA Macg. Ab. p. 187. 

 Oblong- cylindrical, very thin, transparent, brittle, pure 

 white, truncate at the right extremity, wider and roun- 

 ded at the other ; aperture extending the whole length, 

 narrow for a fourth only, then dilated into an oblong- 

 truncate form : outer lip very thin, pillar exposed and 

 gently waved: white with regular distinct divergent 

 longitudinal striae which are moniliformly marked, or 



