612 



PISCES. 



[RIN. TAN. 



excavatus, Newberry, 1877, Geo. of Wis., 

 vol. 2, p. 397, Ham. Gr. 



frangens, Newberry, 1873, Ohio Pal., vol. 

 1, p. 311, Up. Held. Gr. 



secans, Newberry, 1873, Ohio Pal., vol. 1, 



p. 310, Up. Held. Gr. 



Rinodus, Newberry & Worthen, 1866, syn. 

 for Ptyctodus. 



calceolus, see Ptyctodus calceolus. 

 SANDALODUS, Newberry & Worthen, 1866, 

 Geo. Sur. 111., vol. 2, p. 102. [Ety. 

 sandalon, a sandal ; odous, tooth.] Teeth 

 thick, strong, s'ubtriangular or club- 

 shaped, with one or two pointed ex- 

 tremities; twisted and arched; base 

 concave, surface punctate. Type S. 

 parvulus. 



angustus, Newberry & Worthen, 1866, 

 Geo. Sur. 111., voL 2, p. 103, Keokuk Gr. 



carbonarius, see Orthopleurodus carbon- 

 arius. 



complanatus, Newberry & Worthen, 1866, 

 (Deltodus complanatus,) Geo. Sur. 111., 

 vol. 2, p. 98, Upper Burlington Gr. 



crassus, Newberry & Worthen, 1870, Geo. 

 Sur. 111., vol. 4, p. 369, syn. for S. 

 spatulatus. 



grandis, Newberry & Worthen, 1866, Geo. 

 Sur. 111., vol. 2, p. 105, syn for S. lams- 

 si m us. 



Isevissimus, Newberry & Worthen, 1866, 

 Geo. Sur. 111., vol. 2, p. 104, Keokuk Gr. 



minor, Newberry & Worthen, 1866, (Tri- 

 gonodus minor,) Geo. Sur. 111., vol. 2, p. 

 112, Keokuk Gr. 



parvulus, Newberry & Worthen, 1866, 

 Geo. Sur. 111., vol. 2, p. 102, St. Louis 

 Gr. In part Stenopterodus parvulus. 



spatulatus, Newberry & Worthen, 1866, 

 Geo. Sur. 111., vol. 2, p. 103, St. Louis Gr. 



FlQ. 1175. Sandalodus spatulatus. 

 Sauripteris, Hall, 1843, Geo. Rep. 4th Disk 

 N. Y. [Ety. sauros, lizard ; pteran, wing.] 

 taylori, see Holoptychius taylori. 

 Sicarius extinctus, Leidy, 1855, Proc. Acad. 

 Nat. Sci., vol. 7. Not satisfactorily de- 



STEMMATODUS, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 328. [Ety. 

 stemmatos, a wreath ; odous, tooth.] 

 Teeth variable, anomalous, some trian- 

 gular with three or more rows of den- 

 ticles, others simple with narrower base 

 and a single row of coronal cusps. Type 

 S. chiriformis. 



bicristatus, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 331, Burling- 

 ton Gr. 



bifurcatus, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 330, Burling- 

 ton Gr. 



chiriformis, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 330, Burling- 

 ton Gr. 



compactus, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 334, Kaskas- 

 kia Gr. 



keokuk, St. John & Worthen, 1875, Geo. 

 Sur. 111., vol. 6, p. 334, Keottuk Gr. 



simplex, St. John & Worthen, 1875, Geo. 

 Sur. 111., vol. 6, p. 332, Burlington Gr. 



symmetricus, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6, p. 333, Burling- 

 ton Gr. 



STENACANTHUS, Leidy, 1856, Jour. Acad. 

 Nat. Sci., 2d ser., vol. 3, p. 162. [Ety. 

 stenos, narrow ; akantha, a spine.] Nar- 

 row denticulated spine. Type S. ni- 

 tidus. 



nitidus, Leidy, 1856, Jour. Acad. Nat. Sci., 



2d ser., vol. 3. p. 162, Carboniferous. 

 STENOPTERODUS, St. John & Worthen, 1883, 

 Geo. Sur. 111., vol. 7, p. 100. [Ety. 

 stenos, narrow ; pteron, wing ; odous, 

 tooth.] Teeth distinguished by their 

 long elliptical outline, strongly arched 

 and spiral inrollment of the outer ex- 

 tremity. Crown with a lobe in the di- 

 rection of inrollment. Type S. planus. 



elongatus, St. John & Worthen, 1883, Geo. 

 Sur. 111., vol. 7, p. 106, Warsaw Gr. 



parvulus, Newberry & Worthen, 1866, 

 (Sandalodus parvulus,) Geo. Sur. 111., 

 vol. 2, p. 102, St. Louis Gr. 



planus, St. John & Worthen, 1883, Geo. 

 Sur. 111., vol. 7, p. 102, Upper Burling- 

 ton Gr. 

 Strigillina, Cope, syn. for Janassa. 



gurleiana, see Janassa gurleiana. 



linguiformis, see Janassa linguiformis. 

 T-ENIODUS, De Koninck, MSS., and St. John 

 & Worthen, 1883, Geo. Sur. 111., vol. 7, 

 p. 75. [Ety. tsenia, ribbon ; odous, 

 tooth.] Trapezoidal, arched from within 

 outward, inrolled obliquely outward 

 and forward ; distinguished from Pse- 

 phodus by the differentiation of the 

 coronal contour of the maxillary me- 

 dian forms. Type T. contortus. 



fasciatus, Newberry & Worthen, 1870, 

 (Deltodus fasciatus,) Geo. Sur. 111., vol. 

 4, p. 366, Keokuk Gr. 



obliquus, St. John & Worthen, 1883, Geo. 

 Sur. 111., vol. 7, p. 78, Kaskaskia Gr. 



regularis, St. John & Worthen, 1883, Geo. 



Sur. 111., vol 7, p. 77, Warsaw Gr. 

 TANAODUS, St. John & Worthen, 1875, Geo. 

 Sur. 111., vol. 6, p. 367. [Ety. tanaos, 

 long; odous, a tooth.] In the laterally 

 extended linear outline of the crown 

 it resembles Chomatodus; in the dip- 

 proportionate depth of the coronal sur- 

 faces and marginal position of the root 

 it resembles Antliodus from which it 

 is distinguished by the linear outline 

 of the crown and the inferior surface 

 of the root. Type T. graoillimus. 



angularis, Newberry & Worthen, 1866, 

 (Chomatodus angularis,) Geo. Sur. 111., 

 vol. 2, p. 55, Coal Meas. 



