Amm 



10 



Ammonites terehratus, its non-occurr. in 

 Grey Limest. of Scarborough, xxix. [list 

 of errata]. 



triplicatus, xxxvi. 228 & pi. x. 



■ turgidus, sp. nov., xv. 11. 



Turneri, zone of, xvi. 403. 



Umbulazi, sp. nov., xi. 456 & pi. xi. ; 



xxvii. 63 & pi. iii. 



varians, zone of, nr. Folkestone, xxxiii. 



437, 446, 448. 



Vertumnus, sp. nov., xv. 9 & pi. i. 



spp. (Upper Greensand), xiii. 87 & 



pi. ii. ; (Jurass.), xxvii. 113 & pi. v. 

 ' Ammonitico rosso ' correl. w. Oxfordian, 



v. 179, vi. 426; Catullo's correl., vii. 67 



et seqq. 

 Amorphozoa, char, of, v. 55-63 ; Devon., 



stratigr. value of, xxiii. 664. 

 Ampezzo Valley (S. Tyrol), xlix. 13, 14, 



28 ; diagr. of Upper Trias in, facg. 



xlix. 47; list of foss. fr., xlix. 48 et 



seqq. 

 Amphibia fr. Nova Scotian Coal Mea- 

 sures, xxvi. 166 ; in Carb. group, xxxvii. 



Proc. 225. 

 ' Amphibolites a. glaucophane ' of He 



de Groix, xliii. 302 ; banded do., nr. 



Quimperle, xliii. 311 ; in Roscoff dis- 

 trict, xliii. 317; nr. Perrero, etc., 1. 254, 



259. 

 ' Amphibolized gabbro ' of Craig-y-fael, 



xliv. 447. 

 AmphibracJimm crassum, sp. nov., xlix. 



223 & pi. v. 



fragile, sp. nov., xlix. 223 & pi. v. 



truncatum, sp. nov., xlix. 223 & 



pi. v. 



sp., xlix. 224 & pi. v. 



Amphicentrum, gen. nov., xxii. 306 & 



pi. xx. ; xxii. 304 fig. 



■ granulosum, xxii. 306 & pi. xx. 



Ampbichelydia, name prop, for section of 



Chelonia, xlv. 518. 

 Amphidetus virginianus, sp. nov., i. 425 



fig. ; anatomy of test, xxv. 16. 

 Ampliihelia incrustans, sp. nov., xxvi. 304 



& pi. xx. 

 Amphipeltis , gen. nov., xix. 75. 

 paradoxus , sp. nov., xviii. 346 ; xix. 



76, 79 fig. 

 Amphipoda, Prosoponiscus ref. to, xv. 

 137 et seqq. ; new sp. of (Moray Firth), 



xv. 139 & pi. vi. 

 Amphistegina vulgaris, xx. 62 ; in Vic- 

 toria, xxi. 391. 



beds of Siena district, xvi. 298, 299. 



Ampleforth Beacon (Yorks), section to 

 Oswaldkirk, xxxiii. 356 ; do. in quarry, 

 descr., xxxiii. 358. 

 Amplexus Feildeni, sp. nov., xxxiv. 589 

 & pi. xxvi. 



cf. nodulosus, xxxix. 591. 



pustulosus, sp. nov., xxxix. 591 & 



pi. xxiii. 



tortuosus, xl. 503 & pi. xxiii. 



spp. (Silur.), xxxiv. 589 & pi. xxvi. ; 



(Devon.), xl. 600, 601 & pi. xxi. 



Ampney Crucis (Gloucester), section in 



Oolites descr., xiv. 119. 

 Ampthill Clay (Oolite), prob. horizon of, 



xxxiii. 313. 

 Ampullaria (?) ignobilis, sp. nov., xxiii. 



153. 

 (Natica) subdepressa, sp. nov., viii. 



267, x. 155 & pi. ii. 

 Ampyx (Rhaphiophorus) aloniensis, sp. 



nov., xliv. 724 & pi. xvi. ; zone of, xliv. 



673, 682. 



Salteri, sp. nov., xxxi. 182 & pi. x. 



Amsterdam (Holland), well-sections, xi. 



p. lxxiii. 

 Amuri (New Zealand), section thro' S. 



Bluff nr., xli. 272. 

 Amuri Limestone considered as marking 



a stratigr. break, xli. 266 et seqq. 

 Amygdaloids, in India, iii. 226; in Nova 



Scotia, iv. 52 et seqq. ; nr. Ober stein, 



iv. 210 et seqq. ; in Nagpur district, 



xi. 358 et seqq., xvi. 155 et seqq. ; 



felspathic, of Carrick, xxii. 516; zeo- 

 lites, etc. in, comp. w. those formed by 



thermal springs, xxxiv. 73-85 & pi. iv. ; 



var. orig. of, xxxv. 329 ; in Breidden 



Hills, xli. 535, 543 ; of Pen-y-chain, xlv. 



263, 264 figs. 

 ' Amygdaloid, traps,' occurr. of copper in, 



xxii. 459 et seqq. ; amygdaloid-rock ' in 



Natal, xxvii. 60. 

 Amygdules in Shap lavas, xlix. 362-363, 



371. 

 An Cumhann (Arran), xlix. 557. 

 Anabacia Pouchardi, xl. 715. 

 complanata, xxxviii. 434, xxxix. 193, 



xl. 715. 

 orbulites, in Forest Marble & Corn- 



brash, xxxviii. Proc. 200, 202. 

 Anagarry (Donegal) granite, chem. anal. 



of, xviii. 408, 410 ; sphene-rock of, xviii. 



406. 

 Anamesites of Eigg, xxvii. 290, 299 ; of 



Capraja, xlix. 135, 140. 

 Anarthrocanna Perryana, sp. nov., xix. 



461 & pi. xviii. 

 Anas boscas (?), 1. 191 & pi. x. 

 Anatase in metamoi'ph. Brat hay Flags, 



xlvii. 318. 

 Anatina eothamensis, sp. nov., xxiv. 206. 



oninuta, sp. nov., xxxi. 227. 



numismalis, sp. nov., xxvi. 406 & 



pi. xxvi. 

 (?) prcecusor, xvii. 507 & pi. xvi. ; 



var. pylensis. nov., xxii. 88 & pi. iv. 



■ (?) Suessi, xvii. 507 & pi. xvi. 



versicostata, xv. pi. iii. 



Anca de Mangalaviti, Fr., Discov. 



of two Bone Caves in N. Sicily, xvi. 



459-460. 

 Anchitherium, ancestor of PJqtms, xxvi. 



p. xlix. 

 Anchor Head Hill (Somerset), section, 



xlviii. 287. 

 Anchor-ice, its excav. action, xx. 128 ; in 

 Canada, xxvi. 669, xxviii. 393, 394; 

 format, of, in Alaska, 1. 3, 6. See also Ice. 



