64 NEW YORK STATE MUSEUM 



Genus TRACHYDERMON Carpenter 

 Trachydermon albus Linnaeus 



Chiton albus Linn. DeKay, Nat. Hist. N. Y. 1843. p. 163 

 Chiton albus Linn. Smith & Prime, An. Lye. N. Y. 1870. 9:392 

 Ischnochiton albus Linn. Tryon, Man. Conch. 1892. 14:70 



Class PELECYPODA 



Order SIPHONIDA 



Suborder SINUPALLIATA 



Family TEREDIDAE 



Genus TEREDO Linnaeus 



Teredo navalis Linnaeus 



Teredo navalis Linn. DeKay, Nat. Hist. N. Y. 1843. P- 2 49 



Teredo dilatata Stimpson 



Teredo dilatata St. Smith & Prime, An. Lye. N. Y. 1870. 9:391. 

 (Greenport) 



Family 

 Subfamily 



Genus PHOLAS Linnaeus 



Pholas costata Linnaeus 



Pholas truncata Say. DeKay, Nat. Hist. N. Y. 1843. p.248. 



(Westchester and Richmond counties) 

 Pholas truncata Say. Jay, Cat. 1852. p,io 

 Pholas costata Linn. Jay, Cat. 1852. p.io 

 P hoi as truncata Say. Smith & Prime, An. Lye. N. Y. 1870. 



9:391. (Rockaway) 

 Pholas costata Linn. Smith & Prime, An. Lye. N. Y. 1870. 



9 : 39 J 



Genus ZIRFAEA Leach 



Zirfaea crispata Linnaeus 

 Pholas crispata Linn. DeKay, Nat. Hist. N. Y. 1843. P- 2 47- 



(Long Island) 

 Pholas crispata Linn. Smith & Prime, An. Lye. N. Y. 1870. 



Family 



Genus ENSIS Schumacher 



Ensis directus Conrad 



Solen en sis Linn. DeKay, Nat. Hist. N. Y. 1843. P-242 

 Solen ensis Linn. Jay, Cat. 1852. p.n 

 Solen vagina Linn. Jay, Cat. 1852. p.ii 



