484 



GLOSSAET. 



KIMMERIDGE CLAY, a thick bed of 

 bituminous clay, so called from 

 Kimmeridge, in the Isle of Pur- 

 beck, where it chiefly occurs. 



LACUSTRINE, belonging to a lake. 

 LAMELLA, thin plates, like sheets of 



paper. 

 LAMELLATED, covered with thin 



plates, or scales. 

 LAMELLIFORM, shaped like a thin 



plate, or scale. 

 LAMINA, thin plates. 

 LAMINATED, arranged in thin plates. 

 LAPILLI, volcanic ashes, in which 



globular concretions prevail. 

 LAPLYSIA, a sponge that cannot be 



cleaned ; a genus of gasteropoda. 

 LARVA, the first stage of an insect. 

 LAVA, the stone flowing in a melted 



state from a volcano. 

 LENTICULITES, lat., lenticula, a little 



lentil. 

 LEPIDOPTERA, insects having scaly 



wings, as moths. 



LIAS, corrupted from layers. Em- 

 ployed to designate the formation 



intermediate between the oolite 



and new red sandstone. 

 LIGNITE, wood partially converted 



into coal. 



LIMA, a file ; a genus of shells. 

 LIMAX, a snail, or slug. 

 LIMACINA, lat., Umax. 

 LINGULA, a little tongue ; a genus of 



shells. 

 LiTHODAMi,mollusca which perforate 



stones, shells, &c. 

 LITHOLOGICAL, used to denote the 



stony character of a mineral mass. 

 LITHOPHYTES, stone plants ; a term 



applied to corals. 



LITTORAL, belonging to the sea- 

 shore. 



LITUOLITES, lat, litnus, crooked 

 trumpet; a genus of cephalopoda. 



LOAM, a mixture of sand and clay. 



LOESS, a tertiary deposit on the 

 banks of the Rhine. 



LOLIGO, for a cuttle-fish. 



LOPHIDON, an extinct animal of the 

 order Pachydermata, so named 

 from the prominences on its teeth. 



LOLIGOPSIS, like loligo. 



LUCINA, name of a goddes : a genus 

 of shells. 



LUTRARIA, lat., lutra, an otter, from 

 frequenting mud ; a genus of 

 shells. 



LYCOPODIACEJE, an extinct genus of 

 plants, allied to the club-mosses, 

 which occur on the moors and 

 mountain-heaths of the north of 

 England. 



LYMN^IA, a genus of shells. 



M. 



to 



MACROURA, long tail, applied 

 crustaceans, as the lobster. 



MACROPOMA, long operculum, name 

 of a fossil fish. 



MACTRA, a kneading-trough; a genus 

 of shells. 



MADREPORE, (literally mother of 

 pores,} a term descriptive of corals 

 which have superficial, star-shaped 

 cavities or pores. 



MAGILUS, a genus of shells. 



MALLEUS, a hammer. 



MAMMALIA ) animals which give 



MAMMIFERA ] suck to their young. 



MAMMILLARY, a surface studded over 

 with rounded projections. 



MAMMILLATED, studded with mam- 

 millae, or rounded protuberances. 



MAMMOTH, the elephas primigenius, 

 or primitive elephant. 



