283 



Ort 



Omatus-cla,ys (— Middle Oolite) of Brora, 



list of foss. fr., xxix. 168. 

 One (Normandy), Upper Jurass. of,xxxvii. 

 547, xxxviii. Proc. 133 ; vert, section, 

 xxxvii. pi. xxvi. 

 •Ornithichnites & Ornithoidichnites, see 



Footprints. 

 Ornithischia, order prop., xliv. 86. 

 Omithocephala, order prop., xxvi. 394. 

 Ornithocheirus Biinzeli, sp. nov., xxxvii. 



701. 

 Ornitliodesmus cluniculus, gen. & sp. nov., 



sacrum of, xliii. 206-211 & pi. xii. 

 Ornithomerus gracilis, gen. & sp. nov., 



xxxvii. 671 & pi. xxviii. 

 Ornitliopsis, xxxv. 752-762 figs., xlix. 276, 

 280, 566; vertebrae of, xxxvi. 31-35 & 

 pis. iii.-iv. ; do. in Wealden of I. of 

 W., xliii. 159 ; coracoid of (?), xxxviii. 

 367-371 figs. ; bibliogr. of, xxxviii. 375 ; 

 (?) tooth, fr. Wealden of Kent, xlv. 243 

 fig. ; pelvis, notes on, xlv. 391-397 figs. 

 See also Eucamerotus. 



eucamerotus, os pubis & ischium of, 



xxxviii. 372-376 & pi. xiv. 



SulJcei, xliv. 54 et seqq. & pi. hi. 



Leedsii, sp. nov., fr. Kim. Clay, xliii. 



695, 697 fig. 

 Omithopus Mstocliilus, xxxiii. 495. 



retusus, xxxiii. 495. 



Ornitliorhynclms paradoxus, sternum, 



humerus, & other bones comp. w. those 



in Platypodosaurus, xxxvi. 415, 420 & 



pis. xvi.-xvii. ; pelvis of, xl. Proc. 56 fig. 



Ornithosauria in Gr. Oolite, xxxviii. Proc. 



198 ; fr. Oxf . Clay of St. Ives, xlvi. 429- 



431 figs. ; quadrates fr. Kim. Clay of 



Dorset, xlvii. 41 & pi. v. 



Ornithoscelida, establ. of order, xxvi. 35; 



aff. w. other reptil., xxvi. 35; do. w. 



birds, xxvi. 37 ; not linear types (?), xxvi. 



p. xlviii ; evol. of, xxxi. 433 et seqq. ; 



occurr. in Gr. Oolite, xxxviii. Proc. 



198. 



Oropuch Lagoon (Trinidad), section to 



Taruba Creek, xlviii. 522. 

 Orosaurus, gen. nov., xxiii. 5. 

 Oroseris comp. w. Comoseris, xli. 185, 

 186 ; gen. aff. of, xlii. 120. 



concentrica, sp. nov., xxxviii. 441. 



contorta, sp. nov., xxxviii. 441 & 



pi. xviii. 



■ gibbosa, sp. nov., xxxviii. 442. 



haldonensis, sp. nov., xxxv. 92 & 



pi. viii. 



incrustans, sp. nov., xxxviii. 442 & 



pi. xviii. 



oolitica, sp. nov., xxxviii. 440. 



Slatteri, sp. nov., xxxix. 192 & pi. vii.; 



xli. 187. 

 Orosi Valley (Costa Rica), aug.-andesite 

 of, xxxviii. 334, 336 ; thermal springs of, 

 xxxviii. 334. 

 Orp-le-Grand (Brabant), Eoc. of, viii. 

 R365. 

 Orpen's Kop (Griqualand West), xxx. 627 



& pis. xxxv., xxxix. 

 Orpiment, *vii. (Part 2) 1. 



Orpington (Kent), section descr., x. 100. 

 Orr's Creek (N. Gippsland), contact of 



granite w. Silur. at, xxxv. 18 fig. 

 Orta, Lago d' (N. Italy), map of S. end, 



xl. 856. 

 Orthacanthus comp. w. Phricacanthus, 



xxxv. 187 ; inch in Pleur acanthus, xxxvi. 



321, 333. 

 ■ JDechenii, *descr. of, v. (Part 2) 21- 



23. 

 Orthaulax inornata, xxxii. 520 & pi. 



xxviii. 

 Orthidian Group, name prop., iii. 157. 

 Orthis altemata, zone of, in Berwyns, etc., 



xxxv. 200. 



1 Andii, xvii. 64 & pi. iv. 



Aymara, sp. nov., xvii. 68 & pi. iv. 



Berthoisi, ix. 154 & pi. viii. ; var. 



erratica, xxvi. 83 & pi. v. 



■ bussacensis, sp. nov., ix. 153 & pi. viii. 



calligramma, var. virgata, vii. 170 & 



pi. viii. 

 Carausii, occurr. in Anglesey, xxxviii. 



26. 



carinata, iv. 173. 



concinna, sp. nov., ii. 275 & pi. x. 



confinis, sp. nov., v. 15 & pi. i., vii. 



170 & pi. viii. ; O. c.-flags in Benan Burn, 



xxxviii. 556 ; in neighb. districts, xxxviii. 



561 et seqq. 



duriensis, sp. nov. , v. 152 & pi. vi. 



exornata, sp. nov., ix. 153 & pi. viii. 



Sicksii, occurr. in Anglesey, xxxviii. 



26. 



lusitanica, sp. nov., v. 152 & pi. vi. 



miniensis, sp. nov., v. 152 & pi. vi. 



Mundce, sp. nov., ix. 154 & pi. viii. 



noctilio, sp. nov., v. 151 & pi. vi. 



parva non eanalis, iv. 174. 



pulvinata, sp. nov., xx. 294 & pi. xvii.; 



xxvi. 83 & pi. v. 

 redux, xx. 294 & pi. xvii. ; var. 



(nov.?), xx. 294 & pi. xvii.; var. bud- 



leighensis, xxvi. 82 & pi. v. 



resupinata, xviii. 31 & pi. i. 



reversa, vii. 171 & pi. ix. 



Mibeiro, sp. nov., ix. 152 & pi. viii. 



striatula, xv. 380 & pi. xiii. 



Sulivani, sp. nov., ii. 275 & pi. x. 



tenuis, sp. nov., ii. 275 & pi. xi. 



Valpyana, xxvi. 83 & pi. v. 



Vicaryi, sp. nov., xxvi. 84 & pi. v. 



spp. (Devon.), xvii. 64 & pi. iv. ; 



(Upper Silur.), xvii. 69 & pi. iv. ; (Carb.), 



xxii. 36 & pi. i. 

 Orthoceras, supp. impress, of soft parts of. 

 iii. 255-257 fig., v. 107-111 figs. 



arcuoliratum, xv. 375. 



Barrandei, sp. nov., vii. 177 & 



pi. ix. 



ccereesiense, sp. nov., xxxi. 189 & 



pi. xi. ; in Arenig Group, xxxvii. Proc. 

 114. 



conieum, xii. 381 & pi. vi. 



cylindraceum, xxxvi. 583. 



decrescens, sp. nov., xix. 16 & pi. viii. 



cf. elongatocinctum, xlvii. 526. 



imbricatum, xxxiv. 607. 



xr2 



