221 



Ericthonius DiFFOKMis, Milne Edwards. 



Erichthonius difformis, M. Edwards (1830). 



Ccfctjnis ruhricornis, (Stimpson (1853) 



Cerapus rubiformis, Packard (18G7) ; fide S. I. Smith. 



" This species was dredged abundantly on stenas of Boltenice in 20 fathoms, 

 rocks, off Moose Inlet " (Grand M.'i:^ an), "towards the Seal Islands. It 

 afterwards occurred sparingly in 10 fathoms, off Cheney's Head, and in 25 

 fathoms, off Duck Island. Specimens occurred on the tenth of August, with 

 eggs, which were hatched on the 25th of the same month." 



"The Cerapus ruhricornis inhabits flexible tubes, of sizes corresponding 

 to that of the individuals, composed of fine mud and some animal cement by 

 which it is agglutinated. These tubes are generally adherent for about 

 one-half their length, and closed below. They are usually found in large 

 groups, attached to submarine objects, and to each other. The animals are 

 very active, protruding and retracting the anterior portion of their bodies, 

 while their antennte are in continual motion, lashing about in search of 

 some object which might serve for food. It is very amusing to watch a 

 colony of these animals, with their comical gestures in their disputes with 

 each other, and their awkward celerity in regaining their respective tubes 

 after having left them on temporary excursions " (Stimpson). " Inhabits 

 flexible tubes in Halecium halecinum. Eight fathoms, sand. Caribou Island, 

 Strait of Belle Isle. The young had just been hatched on June 20th " 

 (Packard). 



Family Podoceridce. 



PoDOCERUS NiTiDUS, Stimpson. 



1853. Synops. Marine Invert. Grand Manan, p. 45. 

 Grand Manan, "dredged in 30 fathoms on a shelly bottom in the Hake 

 Bay " (Stimpson). 



PoDOCERUs FUCICOLA (Stimpson). 



Cerapus fucicola, Stimpson (1853). 

 Poclocerus fucicola, S. I. Smith (1873). 



Grand Manan, inhabiting " slender tubes, which are found in considerable 



numbers on large alga? in the laminarian zone " (Stimpson). Common in 



the Bay of Fundy (Smith). 



Amphitiige punctata. Say. 



Ampliithoc punctdta, Say (1818) ; fidf> Sppnce Bate. 

 Ampkithoe vircscens, Stimpson (1853). 



Grand Manan, " dredged in 4 fathoms on a nullipore bottom, off Duck 



Island boat-moorings " (Stimpson). 



