562 



CRUSTACEA. 



PRO.] 



Fig. 1016.— Proe 

 tus alaricus. 



lobed, segmented, semicircular; axis 

 very convex, short. Type P. cuvieri. 

 alaricus, Billings, 1860, 

 Can. Nat. and Geo., 

 vol. 5, p. 68, Hud. Riv. 

 Gr. 

 angustifrons, Hall, 1862, 

 15th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 70, 

 Schoharie grit. 

 auriculatus, see Phillipsia 



auriculatus. 

 can alien lut us. Hall, 1862, 

 15th Rep. N. Y. St. Mus. 

 Nat. Hist., p. 73, Up. 

 Held. Gr. 

 clarus, Hall, 1862, 15th Rep. N. Y. St. 



Mus. Nat. Hist, p. 71, Up. Held. Gr. 

 conradi, Hall, 1862, 15th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 69, and Iilust. Devon. 

 Foss., pi. 20, Schoharie grit, 

 corycceus, Conrad, 1842, (Asaphus cory- 

 cceus,) Jour. Acad. Nat. Sci., vol. 8, p. 

 277, and Pal. N. Y., vol. 2, p. 315, Ni- 

 agara Gr. 

 crassimarginatus, Hall, 1843, (Calymene 

 crassimarginata,) Geo. Rep. 4th Dist. 

 N. Y., t). 172, and Iilust. Devon. Foss., 

 pi. 20, Up. Held. Gr. 

 curvimarginatus, Hall, 1888, Pal. N. Y., 



vol. 7, p. 94, Up. Held. Gr. 

 davenportensis, Barris, 1879, Proc. Dav. 

 Acad. Sci., vol. 2, p. 287, syn. for P. 

 prouti. 

 delphinulus, Hall, 1888, Pal. N. Y., vol. 7, 



p. Ill, Up. Held. Gr. 

 denticulatus, see Phsethonides dentieu- 



latus. 

 doris, see Phillipsia doris. 

 ellipticus, Meek & Worthen, 1865, Proc. 

 Acad. Nat. Sci, p. 267, and Geo. Sur. 

 111., vol. 3, p. 460, Kinderhook Gr. 

 folliceps, Hall, 1888, Pal. N. Y., vol. 7, p. 



101, Up. Held. Gr. 

 granulatus, Wetherby, 1881, Jour. Cin. 

 Soc. Nat. Hist., vol. 4, p. 81, Kaskas- 



haldemani, Hall, 1862, 15th Rep. N. Y. 



St. Mus. Nat. Hist., p. 74, Ham. Gr. 

 hesione, Hall. 1862, 15th Rep. N. Y. 



St. Mus. Nat. Hist., p. 70, and 



Iilust. Devon. Foss., pi. 20, Schoharie 



grit, 

 jejuuus, Hall, 1888, Pal. N. Y., vol. 7, p. 



124, Ham. Gr. 

 Junius, Billings, 1863, Proc. Port. Soc. 



Nat. Hist., vol. 1, p. 122, Low. 



Held. Gr. 

 latimarginatus, Hall, 1888, Pal. N. Y., 



vol. 7, p. 97, Up. Held. Gr. 

 loganensis, Hall & Whitfield, 1877, U. S. 



Geo. Exp. 40th Par., vol. 4, p. 264, 



Waverly Gr. 

 longicaudus, Hall, 1862, 15th Rep. N. Y. 



St. Mus. Nat. Hist., p. 108, and Iilust. 



Devon. Foss., pi. 20, Ham. Gr. 

 macrobius, Billings, 1863, Proc. Port. 



Soc. Nat. Hist, vol. 1, p. 123, Low. 



Held. Gr. 



macrocephalus, Hall, 1862, 15th Rep. 



N. Y. St. Mus. Nat. Hist, p. 77, 



Ham. Gr. 

 marginalis, Conrad, 1839, (Calymene mar- 



ginalis,) Ann. Geo. Rep. N. Y., p. 66, 



and Iilust. Devon. Foss., pi. 21, Tully 



limestone, 

 microgemma, Hall, 1888, Pal. N. Y., vol. 



7, p. 109, Up. Held. Gr. 

 missouriensis, Shumard, 1855, Geo. Rep. 



Mo., p. 110, Waverly or Cho- 



teau Gr. 

 nevadse, Hall, 1888, Pal. N. Y., vol. 7, p. 



129, Low. Devonian, 

 occidens, Hall, 1862, 15th Rep. N. Y. St. 



Mus. Nat. Hist, p. 80, Ham. Gr. 

 ovifrons, Hall, 1888, Pal. N. Y., vol. 7, p. 



110, Up. Held. Gr. 

 parviusculus, Hall, 1860, 13th Rep. N. Y. 



St. Mus. Nat. Hist, p. 120, and 24th 



Rep., p. 223, Hud. Riv. Gr. 

 peroccidens, Hall & Whitfield, 1877, U. S. 



Geo. Expl. 40th Par., vol. 4, p. 262, 



Waverly Gr. 

 phocion, Billings, 1874, 



Pal. Foss., vol. 2, p. 



63, Gaspe limestone 



No. 8, Devonian, 

 planimarginatus, Meek, 



1871, Proc. Acad. Nat. 



Sci. Phil., p. 89, and 



Ohio Pal., vol. 1, p. 



223, Up. Held. Gr. 

 protuberans, Hall, 



1859, Pal. N. Y., vol. 



3, p. 351, Low. Held. 



Gr. 

 prouti, Shumard, 1863, 



Trans. St. Louis Acad. Fig. 1047. — Proetus 



Sci., vol. 2, p. 110, phocion. 



Ham. Gr. 

 rowii, Green, 1838, (Calymene rowii,) 



Am. Jour. Sci., vol. 33, p. 406, and 



Iilust. Devon. Foss., pi. 21, Ham. Gr. 

 spurhcki, Meek, 1872, Am. Jour. Sci., 3d 



ser., p. 426, and Ohio Pal., vol. 1, p. 161, 



Hud. Riv. Gr. The young of an Asa- 

 phus. 

 stenopyge, Hall, 1888, Pal. N. Y., vol. 7, 



p. 110, Up. Held. Gr. 

 stokesi, Murchison, 1839, (Asaphus 



stokesi,) Sil. Syst, p. 625, and Pal. N. Y., 



vol. 2, p. 316, Niagara Gr. 

 swallovi, see Phillipsia swallovi. 

 tumidus, Hall, 1888, Pal. N. Y., vol. 7, p. 



113, Up. Held. Gr. 

 verneuili, Hall, 1861, 15th Rep. N. Y. St. 



Mus. Nat Hist., p. 73, and Iilust. Dev. 



Foss., pi. 20, Up. Held. Gr. 

 Pbotichnites, Owen, 1852, Jour. Geo. Soc, 



vol. 8, p. 214. [Ety. protos, first ; ichnos, 



foot-print ; lithos, stone.] It consists 



of two rows of tracks or depressions, 



several inches apart ; each row consists 



of numerous irregular and subcircular 



depressions, sometimes elongated; be- 

 tween the rows there is frequently a 



groove, and at other times, the surface 



