GLOSSARY. " 3813 



oomj/rising those formations in whioh the organlo remains approximufc: 



more or less closely to the existing fauna and flora. . , . , 



Kee'a-tode (Gr. lerm, horn; eidos, form). The homy substance of which 



the skeleton of raanv sponges is made up. , , , , , 



Rek-a-to'sa. The division of Sponges in which the skeleton is composed 



of keratode. 



La'ei-um (Lat. for lip). Restricted to the lower lip of Articulate animals. 

 I.a'beum (Lat. for lip). Eestricted to the upper lip of Articulate animals. 

 Lab-y-einth-o-don'ti-a (Gr. laburinthos, a labyrinth; odous, tooth). An 

 extinct order of Amphibia, so called from the complex microscopic structure 

 of the teeth. „„,.,. ■ ■ n 



Lao-ee-til'i-a (Lat. lacerta, a lizard). An order of BeptiUa compnsmg the 



Lizards and Slow-worms. , ,. , . j <• 



Lj!-mo-dip'o-da (Gr. laimos, throat; dis, twice; podes, feet). An order ot 



Crustacea, so called because they have two feet placed far forward, as it 



were under the throat. „ , , . -i, n rri 



LA-MEL-Li-BBANOn-i-A'TA (Lat. lameLla, a plate; Gr. brar/clna, gdls) ihe 



class of MoUusca, comprising the ordinary bivalves, characterized by the 



possession of lamellar gills. mi. i3 » i -ii i 



La-mel-lt-eos'tees (Lat. lameUa, a plate; rostrum, beak). The flat-billed 



Swimming Birds (Natalores), such as Ducks, Geese, Swans, etc. 

 Lae'va (Lat. for a mask ). The insect in its first stage after its emergence 



from the eo-o-, when it is usually very different from the adult. 

 Lae'ynx. tTc upper part of the windpipe, forming a cavity with appropriate 



muscles and cartilages, situated beneath the hyoid bone, and concerned in 



Mammals in the production of vocal sounds. 

 Len-tic'u-lae (Lat. lens, a bean). Shaped like a biconvex lens. 

 Lep-i-dop'te-ea (Gr. lepis, a scale; pteron, a wing). An order of Insects, 



comprising Butterflies and Moths, characterized by po.ssessmg four wings 



which are°usually covered with minute scales. 

 Lep-i-do'ta (Gr. lepidotos, covered with scales). Formerly applied to the 



order IHpnoi, containing the Mud-fishes (Lepidosiren). 

 Lep-to-oae'di-a (Gr. leptos, slender, small; JMrdia, heart). The name given 



by MilUer to the order of Fishes comprising the Lancelet, now called r/ia- 



rtjnqohranchii. ^ , -, n mi i i r i t- 



Lig-a-men'tom nu'ch.e (Fr. nvqve, the nape of the neck). The band ot elastic 



fibres by which the weight of the head in Mammalia is supported. 

 Lin'oual (Lat. lingua, the tongue). Connected with the tongue. 

 Lin'gu-la (Lat. lingula, a little tongue). The upper flexible portion of the 



labium or lower hp in Insects. ,,,,., , . i- • • „ 



Lis-sen-ceph'a-la (Gr. lissos, smooth ; ajhpjmlos, brain). A primary di\ ision 



of Mammalia, according to Owen, in which the cerebral hemispheres are 



smooth or have few convolutions. 

 Lith'o-cysts (Gr. lithos, a stone ; Mstis a cyst). The sense-organs or mar- 

 ginal bodies" of the Liicernarida or SteganopUhalmate Medvsai. 

 Lon-gi-pen-na'tjs (Lat. loiigus, long; penna, wing). A group of the Nata- 



Lon™-eos't^'es (Lat. longm ; rostrum, beak). A group of the Wading Birds. 

 Lopii'-o-PHOEE (Gr. topics, a crest; and phero, I carry). The disc or stage 



upon which the tentacles of the Polyzoa are borne. , ^. ,s . 



LoPH-n-EOp'o-DA (Gr. lopTwaros, having stiff hairs; and -j^odes, feet). An 



order of Crustacea. . .^i, i ■ i 



Lo-Ei'cA (Lat. for a breast-plate). Applied to the protective case with which 



certain /«/M«oHa are provided. _ „,,,., • ■ ti, 



LoE-i-OA TA (Lat. loricd. a cuirass). The division of Eept.les comprising the 



Chelonia and Grocodllia, in which bony plates are developed in the »kiii 



Lc-tl^KAE'i-DA (Lat. lueerna, a lamp). An order of the Rgdrozoa. 

 Lum'bae (Lat. lumlus, loin). Connected with the loins. 

 Lti'nate (Lat. luna, moon). Creseeutic m shape. 



