other, and it may be, that one or both of these methods of drilling stone-axes was made use of by the aborignies of this continent.
Perhaps some of the readers of the Cincinnati Quarterly Journal of Science may be able to quote examples of these supposed cores, and to describe them in some future number.
New Species of Trilobite from the Trenton Limestone at Trenton Falls, N. Y. By C. D. Walcott.
Genus Remopleurides—(Portlock.)
R. striatulus, (n. sp.)
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| Fig. 27. Remopleurides striatulus. a Anterior surface of hypostoma. b Ventral surface of hypostoma. The hypostoma figured is of the same size as that of the trilobite A. |
General form obovate, strongly convex. Head subrotund. Glabella prominent, central portion slightly convex, broadest at the posterior third, contracted at the base, where the width is the same as at the anterior margin of the eyes. A narrow palpebral lobe encircles the lateral margins two-thirds the length of the head. Anterior margin narrows and curves abruptly downward. Three pair of glabellar furrows are indicated by smooth lines; anterior and posterior very obscure. Neck segment narrow, well defined from the glabella by being slightly depressed; a minute tubercle occurs upon the anterior central third.
