368 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [662] 



TRACHYDERMON RUEER Carpenter. Plate XXV, fig. 1G6. 



Chiton ruler Lowe, Zool. Jonrn., vol. ii, p. 101, Plate 5, fig. 2 (t. Gould); Gould, 

 Invert., ed. i, p. 149, fig. 24 ; ed. ii, p. 260, fig. 523. Leptochiton ntber H. and 

 A. Adams, Genera, vol i, p. 473 ; this Report, p. 399. 



Off New London, Connecticut, to the Arctic Ocean and northern 

 coasts of Europe. Bare and local in the colder outer waters south of 

 Cape Cod. Off Xew London, 8 fathoms ; off Watch Hill, 5 fathoms. 

 Stonington (Linsley). Very common in Casco Bay and Bay of Fundy, 

 from low-water mark to 40 fathoms. 



Dr. Carpenter assures me that this species should be referred to 

 Tracliydermon. 



Liusley records u Chiton fulminatus Couth.&quot; (= C. marmoreus Gould, 

 Invert., ed. ii, p. 201, fig. 524) as from cod-fish taken off Stonington, Con 

 necticut, but as it has not been confirmed from south of Cape Cod, this 

 must be regarded as a doubtful identification. This species is found 

 from Massachusetts Bay northward to the Arctic Ocean and northern 

 coasts of Europe. It is common in the Bay of Fundy, from low-water 

 mark to 40 fathoms, on &quot;nullipore&quot; (Lithothamnion). 



u Chiton albus&quot; (= Tracliydermon albus, t. Carpenter) has been men 

 tioned as from this region, but probably erroneously. White specimens 

 of C. apiculatci are often mistaken for it, when superficially examined. 

 The genuine albus is a northern species, with about the same distribution 

 as the preceding. It is abundant in the Bay of Fundy, from low-water 



to 80 fathoms. 



PULMONATA. 



MELAMPUS BIDENTATUS Say. Plate XXV, figs. 169, 169a. (p. 463.) 



Journal Acad. Nat. Sciences, Philadelphia, A^ol. ii, p. 245, 1322 ; Gould. Invert., ed. 

 ii, p. 467, fig. 721. Auricula bidentata Gould, Invert., ed. i, p. 117, fig. 131. Me- 

 lampus comeus Stimpson, Shells of New England, p. 51, 1851. 



Massachusetts Bay to Florida, and along the northern shores of the 

 Gulf of Mexico to Texas. Very common on the shores of Vineyard 

 Sound, Buzzard s Bay, Long Island, and Long Island Sound. Fossil in 

 the Post-Pliocene of South Carolina. 

 ALEXIA MYOSOTIS Pfeiffer. Plate XXV, fig. 168. (p. 383.) 



Pfeiffer, Mou. Auric. Viv., p. 148, (t. Biuney) ; Gould, Invert., ed. ii, p. 463, figs. 

 718, 719. Auricula myosotls Draparnaud, Tabl. Moll. Fr., p. 5 3. Auricula den- 

 ticulata Gould, Invert., ed. i, p. 199, fig. 129 (non Montfort). 



jSTew Jersey to Nova Scotia; also on the Atlantic and Mediterranean 

 coasts of Europe. It is common at Eastport, Maine ; Portland, Maine; 

 and at the mouth of West Eiver, near New Haven, Connecticut ; also 

 near New York City. 



TECTTBRANCHIATA. 



BULLA SOLITARIA Say. Plate XXV, fig. 161. (p. 371.) 



Journal Acad. Nat. Sciences, Philadelphia, vol. ii, p. 245, 1822; Biuuey s Say, p. 

 84 ; Gould, Invert., ed. i, p. 162, fig. 92 ; ed. ii, p. 222, fig. 513. Bulla insculpta 

 Totten, American Journ. Science, vol. xxviii, p. 350, fig 1 . 4, 1835. 



Massachusetts Bay to South Carolina. Common in the muddy lagoons 



