180 



PALEONTOLOGY OF NEW YORK. 



El HINOCARIS MULTINODOSA. 

 PLATE XXIX, FIGS. Is, 19. 



' «.W««™ ■ Nev I f Fossil Crustacea etc. A»«r. Jou, Science, Third 



Series, vol. xix, No. I"'.', p. 38, pi. (unpublished), fig. 8. 1880. 



PACKARD . The Paleozoic Allies of Nebalia. Amer. Naturalist, p. 952, fig. 

 10, Dec. 1882. 



m , Packard. Monog. N. A r. Phyllopod Crust. Twelfth Ann. Rep. U. S. Geol. 



Sun ., p. 151, fig. 71a. 1S83. 

 B bcher. Ceraliooride from the Chemung and Waverly groups, etc. Second 

 Surv. Penna., vol. PPP, p. 5. 1884. 

 . | ,,,,. Woodward and Jones. Third Rept. Com. on Fossil PhyUopoda of the 



PaliEOzoic Rocks, p. 35. 1885. 



othorax. In the two specimens of this species which have been 

 observed the carapace has been somewhat compressed vertically, so that the 

 outline of the valves can not be accurately determined. It was probably 

 much like that in Echinocaris pustuloses, transversely sub-ovate, widest an 

 teriorly. The margins are thick and strongly elevated. Hinge-line short, 

 being one-half the length of the carapace. On the anterior extremity the 

 margin bends strongly forward from the hinge, rounding to a broad curve 

 upon the ventral border; from the posterior extremity to the hinge the mar- 

 gin is straight. 



furrow distinct, taking its origin just behind the second of the four 

 nodes upon the hinge-line and passing obliquely forward, becoming obsolete 

 at or near the anterior margin. 



Cephalic region obliquely elliptical on each valve, the anterior portion occu- 



by a large, irregularly quadrate node, whose highest point is near the 



binge. This is separated, by a deep furrow on its posterior margin, from a 



small Imt conspicuous node lying close upon the hinge. The optic spot can 



not be satisfactoribj located. 



characterized by a strong, obliquely elongate node 



lated upon the hinge-line and most elevated at its proximal extremity; 



lating in ,i conspicuous depression which merges into the nuchal 



irrow. The node is sub-triangular in outline and has its apex directed 



Below the apex of this node arises another, broad at its upper 



