i6 



Trachydermon ruber (Linne). 

 Chiton Isevis, Loven. 

 Chiton ruber, Gould, 1870. 

 Whole coast of Maine. 

 Trachydermon ruber var. index, Balch. 



Blue Hill Bay, off Harriman's Point, 12 fath., one 

 adult, one young and one half-grown (F. N. Balch). 

 Trachydermon albus (Linne). 

 Chiton albus, Gould, 1870. 



Whole coast of Maine. 

 Tonicella marmorea (Fabricius). 



Chiton fulminatus, Couthouy, 1838. 

 Chiton 'isevigatus, Fleming, Mighels, 1843. 

 Chiton marmoreus, Gould, 1870. 



Whole Maine coast. 

 Tonicella marmorea var. cserulea, Winkley. 



"In this variety the rose color gives place to a delicate, 



light blue," Eastport (Winkley). 

 Tonicella blaneyi, Dall. 



Frenchman's Bay, dredged in about 20 fath. (Blaney). 

 Amicula vestita (Broderip and Sowerby). 

 Chiton vestitus, B. and S., 1828. 

 Chiton emersonii, Couthouy, 1838. 

 Amicula emersonii, Gould, 1870. 

 Stimpsoneiella emersonii, Verrill, 1873. 



Casco Bay (Mighels, Chickering, Winkley, Lee, Kings- 

 ley) ; Portland Harbor (Fuller in P. S. N. H.) ; out- 

 side Casco Bay (Verrill) ; Frenchman's Bay, only 

 one specimen taken from a haddock (Blaney). 

 Prof. Lee of Bowdoin College informs me that the speci- 

 mens of this species, taken by him on Whaleboat Island, were 

 unusually large, measuring 2 1-2 inches in length. 

 Chaetoderma nitidulum, Loven. 



Just outside Casco Bay, 50 to 95 fath. (Kingsley). 



Gasteropoda (Univalves or Sea Snails). 

 Acmsea testudinalis (Muller). 



Patella amoena, Say, Couthouy, Mighels. 

 Tectura testudinalis, Gould, 1870. 



Whole coast of Maine, on rocks at low-water mark 

 and in tick pools. 



