VERTEBRA.TA. 275 



srdirus^ and now shown to possess pectoral and ventral limbs; and to 

 Portheus molossas, a great carnivorous physostomous fish, with osseous 

 ventral rays, a doubly articulated pectoral spine, and powerful, unequal, 

 cylindrical teeth. The order Actiiwchin is proposed to receive certain 

 forms whose pectoral limb only is known. The scapula supports a 

 close row of six thin basilar bones, besides an anterior pair ; and these 

 in turn support a large pectoral spine, longitudinally ridged, with 

 straight or serrate posterior border. L. C. M, 



Cope, Prof. E. D. Systematic Catalogue of Vertebrata of the Eocene 

 of New Mexico, collected in 1874. Engineer Dept., U, S. Army. 



The development of the carnassial teeth of carnivora is traced from 

 Eocene forms with comparatively numerous (juadrituberculate sectorial 

 teeth to the PelidEe, in which the anterior external tubercle alone of the 

 primitive tooth can be identified. The unspecialized extremities of 

 Eocene carnivora are noted. Xkw Species ; — Carnivora : Ambloctonus 

 sinosus, Prototomus secundarius, P. multicuspis, P. strenuus, Diacodon 

 (n. gen.) alticuspis, D. celatus. Genera incertoe sedis: Pelycodus 

 frugivorus (Quadrumana), P. angulatus, Pantolestes chacensis (Quadru- 

 mana?), Opisthotomus (gen.nov.) astutus (Quadrumana?), 0. fiagrans, 

 Antiacodon mentalis, A. crassus. Perissodactyla : Hyrachus siugularis, 

 Orohippus tapirinus, 0. angustidens, 0. cuspidatus. Amhhjpoda (a 

 new order, to include Bathmodon, Loxolophodon, and Uintatherium) 

 Bathmodon latidens, B. cuspidatus. Crocodilia : Diplocynodus sphenops, 

 Crocodilus grypus, C. Wheeleri» Tesiudinata : Dermatemys (?) costil- 

 latus. L. C. M. 



. The extinct Batrachia of Ohio. Proc. Ac. Nat. Set. PhiladeL 



p. IG. 

 A notice of the new genas and species Pleuroptyx clavatus, with 

 processes from the posterior edges of the ribs, of Hyphasma Icevis 

 (n. gen. and sp.), and of Ceraterptton punctolineatiim (n. sp.). L. C. M. 



. On Greensand Vertebrata. Proc, Ac. Nat. Set. PhiladeL p. 19. " 



Gavials from New Jersey. Many new chimeeroid fishes, about twenty 

 to be published in a special monograph. 



. On the Homologies of the Sectorial Tooth of Carnivora. Ibid, 



p. 20. 

 The substance is given in " Systematic Catalogue, &c." See above. 



. The Feet of Bathmodon. Ibid. p. 73. 



Order Amhhjpoda proix>8ed. See above. 



. On Fossil Lemurs and Dogs. Proc. Ac. Nat* Sd, J^hiladeU 



p. 2oo. 



iSarcolemur (n. gen.) proposed, to include S. furcatus (Antiacodon^ 



Cope), S. pyymieus^ and IS. mentalis, lemurs, from the Eocene of the 



llocky Mountains, having relations with Procyonidce, Mandible of a 



riiocene dog {Canitursinus, n. sp.). L. C, M, 



t2 



