414 CHITONID^. 



We have, unfortunately, no note of the soft parts of 

 the animal. 



This is a scarce species, never occurring gregariously. 

 It ranges in from low- water-mark to forty fathoms water, 

 but is chiefly an inhabitant of the coralline zone. It 

 appears to be present in all our marine provinces. Among 

 localities, may be cited Torquay and Weymouth (S. H.); 

 Exmouth and bays near Swansea (Jeffreys) ; fifteen to 

 eighteen fathoms off Douglas Head, and elsewhere on 

 the coast, off the Isle of Man (E. F,); in seven to twenty- 

 seven fathoms off Lundy Island (M'Andrew); twelve 

 fathoms Orkney, and fifteen to twenty fathoms Zetland 

 (M'Andrew) ; in forty fathoms off the Mull of Cantire 

 (Hyndman); Oban and Loch Long (Barlee); " on both 

 sides of Ireland, but very rare" (Thompson). 



It ranges from Norway to the Mediterranean. 



C. MARMOREus, O. FabHcius. 



Valves broad, most minutely shagreened; ligamental margin 

 coriaceous. 



Plate LVIII. fig. 2, and Plate LIX. fig. 4. 



Chiton marmoreus, 0. Fabric. Fauna Groenlandica, p. 420. — Middendorff, 

 Beit. Malacozool. Rossic. (Mem. Sc. Nat. Petersburg, vol. 

 vi.)p. 103. 

 „ ex ruhro ct alho marmoratus, Chemnitz, Conch. Cab. vol. viii. p. 287, pi. 



96, f. 812 (badly). 

 „ ruber, Spengler (not Linn.), Skriv. Nat. Selks. Kiobenhag.vol.iv.pt. 1, 



p. 92 (fide Loven). — Lovjen, Index Moll. Scand. p. 28. 



„ IcBvir/atus, Fleming (not Sowerby), Edinb. Encyclop. p. 113; Brit. 



Animals, p. 290.— Brit. Mar. Conch, p. 129.— Brown, 111. 



Conch. G. B. p. 67, pi. 21, f. 1, 16. — Reeve, Conch. Icon. 



vol. i v. pi. 27, f. 179. 



„ lutus, Lowe, Zoolog. Journ. vol. ii. p. 103, pi. 5, f. 6, 7. — Sowerbv, 



Conch. HI. Chiton, spec. 9, f. 113. 

 „ fulminatus, Couthouy, Boston Jl. of Nat. Hist. vol. ii. p. 80, pi. 3, f. 19. 



