at the close of the second fauna,[1] which would place it a little below that of the Medina sandstone.
The specific name of the species under consideration was given in honor of Rev. Wm. N. Cleveland, who obtained the specimens described in the Utica slate formation north of the village of Holland Patent, Oneida County, N. Y. On the same pieces of slate with them occur two characteristic fossils of the formation, Leptobolus insignis and Triarthrus Becki, and I have also obtained from the same locality and stratum of slate, Dendrograptus tenuiramosus, Climacograplus bicornis, Schizomania filosa, Endoceras proteiforme, etc.
Several collectors have been and are now working in the Utica slate both in New York State and Canada, and a number of undescribed and interesting species are in their hands, as also several described from the Trenton limestone but unknown from the slate before. It is largely due to the persistent efforts of Mr. Chas. H. Haskell that the many localities in Oneida County, N. Y., have been discovered, and their rich fauna made known from the slate, from one of which localities the form we have described was obtained.
Art. XX.—Notice of the remarkable Marine Fauna occupying the outer banks off the Southern coast of New England, No. 4; by A. E. Verrill. (Brief Contributions to Zoology from the Museum of Yale College: No. L.)
Echinodermata (continued).
In the following list there are included 48 species. Of these, 22 have not, hitherto, occurred elsewhere on our coast; 26 have been found farther north, in the Gulf of Maine, or off the coast of Nova Scotia, and may be considered as arctic; at least 22 are European, and of these 18 or more are northern European; at least 14, and probably more, have been taken in deep water, in the Gulf of Mexico, or off Florida, by Pourtales and A. Agassiz, but there is, as yet, no general lists of their star-fishes and ophiurans; of the whole number, only six are, so far as known, peculiar to this district, and probably this number will soon be reduced. Many of the species have a very extensive range, on both sides of the Atlantic, and also a great range in depth, occurring in much deeper water than was found at any of our stations. Species dredged only in less than 60 fathoms are not included.
In the list, the range of depth given applies only to this special region, as determined by the stations here included.
- ↑ Système Silurien Centre de la Bohême. I, supl. pp. 556, 557. 1872.
