586 



INDEX. 



Kelloway's rock, fossils found in, MG, 150 etseq. 

 common to otlier 



formations, 147. 

 Kent's Hole, remarks on the mammalian remains 



found in, 44-4'. 

 Keratose sponges, proofs that they contain siliceous 



spiculae, 182 note. 

 Kiesel-Schiefer, description of beds of, associated 



with carboniferous limestone in Westphalia, 231 



et seq. 



notice of, in the Hartz district, 289. 



Kingskerswell, notice of the limestone of, 463. 



Koola, account of the formations near, 8. 



• description of volcanic rocks of the first 



Labyrinthodon, description of parts of the skeleton 



and teeth of five species of, 515. 

 leptognathus, portions of the upper 



jaw described, 516. 

 remarks on their 



afiinities to analogous portions in the head of the 



Crocodile and Batrachia, 518. 

 remarks on the ana- 



period of the Catacecaumene near, 29. 



period, 29. 



period, 31. 

 account of the Kara-dewit of, 31. 



second 

 third 



Kyson, notice of mammalian remains found in the 

 London clay of, 203. 



L. 



Labyrinthodon, Mr. Owen on the teeth of species 

 of the genus Labyrinthodon, common to the 

 German Keuper formation and the lower sand- 

 stone of Warwick and Leamington, 503. 



Batrachian character of 



the, of Germany alluded to, 504. 



remarks on the form of 



the teeth, 504. 



structure of the teeth, 505. 



internal 



simila- 



rity of structure in the teeth of the Crocodile, Ple- 

 siosaur, &c., 505, 507. 

 no instance of folds con- 



verging at regular intervals from the whole circum- 

 ference to centre in the teeth of Mammalia, 505. 

 — comparison of, with the 



teeth of the Ichthyosaurus, 506. 

 remarks on the condi- 



tions under which the teeth would present the 



type of those of certain cartilaginous fishes, 510. 



laniarius, (pachygnathus) remarks on 



the structure of a tooth of the, 511. 



logics presented in the arrangement of the 

 teeth of, to the dental characters of Batrachia, 

 519. 

 part of the lower jaw 



described, 521. 



• Batrachian 



analogies of, pointed out, 521. 

 ■ a dorsal vertebra, de- 



scribed, 523. 

 ■ analogy 



in its structure to vertebrae of Batrachia, 523. 

 account of other re- 



mains of, 524. 

 general summary of 



the Batrachian character of the, 525. 

 pachygnathus, remains of, described, 



526 et seq. 



account of portion of 



a lower jaw, and of its affinities to the lower jaw 

 of Batrachia, 526. 



remarks on some ich- 



thyic analogies in the teeth, 528. 

 account of portions of 



upper jaw, 528. 



further Ba- 

 trachian and Crocodilian affinities pointed out, 

 528. 



the existence of sub- 



terminal nostrils shown, 531. 



inference respecting 



the mode of breathing, 531. 



Labyrinthodon had ribs, 531. 



that the 



respecting 



the generative organs of, 531. 

 description of bones of 



the extremities, ilium, &c., 533. 

 analogies to Batrachian 



and Crocodilian characters pointed out, 533. 



