BLANEY: MOLLUSCA OF FRENCHMAN’S BAY. 
39 
Trachydermon ruber (Linne). 
Chiton ruber , Gould, ’70, p. 260. 
Very common; in tide pools and dredged on hard bottom to 50 
fathoms. One abnormal specimen of this species having only six 
valves was found in 1902 in a tide pool at Shag Point, Ironbound 
Island. This is of very rare occurrence. The only other six-valved 
specimen I can find recorded was from California and is mentioned 
in vol. 15, no. 5, p. 53, of the “Nautilus.” 
Trachydermon albus (Linne). 
Chiton albus, Gould, ’70, p. 263. 
Common, dredged at stations 4 and 6, hard bottom. Also found 
in haddock. 
Tonicella marmorea (Fabricius). 
Chiton marmoreus, Gould, ’70, p. 261. 
Common in tide pools and dredged at stations 10 and 11., Not 
found over half an inch long. 
Amicula vestita (Broderip and Sowerby). 
Amicula emersonii, Gould, ’70, p. 264. 
Amicula vestita , Pilsbry, ’93, p. 43. 
Only one specimen, taken from a haddock. 
