l68 NEW YORK STATE MUSEUM 



Emmons (p. 283) states that two species of Pleistocene 

 fossils are found the entire length of Lake Champlain. As a 

 matter of fact only one species, Macoma groenlandica, 

 has been found at the southernmost locality (see Wood- 

 worth, p. 215). Emmons reports no species south of Crown 

 Point, and I have nowhere found a record of any such southern 

 extension of this fauna; but Prof. John H. Cook in the course of 

 some field work for the State Museum recently (1920) discovered 

 two new localities for Macoma groenlandica, both of 

 them farther south than Crown Point. One locality is along the 

 shore near the mouth of Putnam creek, about one-half of a mile 

 north of Crown Point station; the other is about 2 miles south of 

 Crown Point station, just east of Breeds Hill, and the specimens 

 were not visible in the deposits along the shore, but were dredged 

 from the clay in the lake bottom. This second locality is about 8 

 miles farther south than the Crown Point area. 



Four species extend down the greater part of the Champlain 

 valley. Yoldia arctica found recently, together with 

 Macoma groenlandica, just north of Chimney Point, 

 Vt., has almost as great a range as the latter. Saxicava 

 r u g o s a and Mytilus edulis were found a few miles north 

 of Port Henry, and have not been found farther south. Only frag- 

 ments of Mytilus edulis were found and these infrequently, 

 which would indicate that this species was not represented in large 

 numbers as far south as this. Balanus crenatus has not 

 been reported south of Willsboro, nor Mya arenaria south 

 of the Port Kent and Burlington areas. No gastropods occur 

 south of Port Kent, which is the only locality in the Champlain 

 valley from which they have been reported; and only four species 

 have been found here. This does not take account of the three 

 species of Buccinum reported, without locality, from the Champlain 

 valley. The other phyla, Foraminifera, Porifera, Echinodermata, 

 Bryozoa, Brachiopoda and Annulata, are almost without repre- 

 sentation in the Champlain area. A specifically unidentified sponge 

 (Tethea sp.) is listed as occurring at Colchester, Vt., and a 

 bryozoan (L e p r a 1 i a s p.) at Mallett's Bay, Vt. From this 

 latter place one echinoderm also has been reported. Rhyncho- 

 nella psittacea has been reported from the Champlain 

 valley without a locality and Euryechinus drobachiensis 

 is similarly listed from Vermont; so these citations can have little 

 value in the present problem. 1 



1 The basin was also open to large marine animals, such as whales and seals 

 (Dawson, 1894, p. 267, 268; Perkins, 1907—8, p. 76, 80, 81, 102). 



