. The Eurypterida of New York. Eurypterida; Paleontology. fotirth the width and one eighth the length of the carapace; basal margin sHghtly concave, the postlateral angles subrectangular. Eyes marginal, circular, small, a little longer than one fifth the length of the carapace, situated in an angle between the lateral margins and the base of the frontal process. Surface densely covered with relatively large flat nodes. The type measures mm in length and mm in width. This species strongly suggests the Fig. 06,07 E u s a r c u s 1 i n k u a t u s nov. Eusarcus vaningcui, with which Fir.
. The Eurypterida of New York. Eurypterida; Paleontology. fotirth the width and one eighth the length of the carapace; basal margin sHghtly concave, the postlateral angles subrectangular. Eyes marginal, circular, small, a little longer than one fifth the length of the carapace, situated in an angle between the lateral margins and the base of the frontal process. Surface densely covered with relatively large flat nodes. The type measures mm in length and mm in width. This species strongly suggests the Fig. 06,07 E u s a r c u s 1 i n k u a t u s nov. Eusarcus vaningcui, with which Fir. 96 Holotype. x 2. Specimen some- -^ " 0 ' what distorted. Fig. 97 Cotype. x ^ i 1 il T i- • t. YounKer individual showing traces of the it has uot ouly thc pcculiar auterior snout sculpture, the frontal process and the oceiiar mound -^^ common, but also the general outline and the position of the eyes. It is also closely related to the species here described from the Normanskill and Schenectady shales as Pterygotus ? (Eusarcus) nasutus, which possesses a less prominent anterior process and more distant eyes but is very similar to this species in out- line and surface ornamentation. We also refer to this species a number of specimens which correspond to the above description in all particulars but lack the anterior process and assume that the latter may either be broken oi^ or be folded under normally like the epistoma of Pterygotus; with present material we have no means of deciding which. Dolichopterus breviceps nov. Sec text figure 98 A small carapace differs from the others in the position of its lateral eyes which are submarginal in the antelateral angles, thereby suggesting the presence of a species of Doli- chopterus. The carapace is rather short subquadrangular, its . , 'i-i ii 1 • 1*11 nov. Holotvpc. length to its width as 5:7; the lateral margins slightly x 3 concave, diverging forward at a small angle, the frontal margin broadly. Please note that these
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Keywords: ., bookcentury1900, bookdecad, booksubjectpaleontology, bookyear1912
