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CONCHOLOGY. GLOSSARY. 



LO'BATED. Rounded at the edges. 



LOBE. A round projecting part. 



LO'LIGO. Latin. A calmary. 



LOLIGO'PSIS. A calmaret; a little 

 calmary. 



LONGITU'DINAL. The length of the 

 shell from the apex to the base. 



LUBRI'CITY. Smoothness of surface, 

 slipperiness. 



LU'NATED. Formed like a half-moon. 



LUNU'LATED. Crescent-shaped. 



LU'NULE. A crescent-like spot or 

 mark situated near the anterior 

 and posterior slopes in bivalve 

 shells. 



LU'NIFORM. In the shape of a cres- 

 cent or half-moon. 



LUTRA'RIA. Genus of the family of 

 Inclusa. 



MACTRA. Latin. A kneading- 

 trough. Name of a genus of bi- 

 valves. 



MA'DREPORE. A hybrid compound 

 of the French madre, spotted, and 

 Latin, porus, a pore. Name of a 

 genus of zoophytes. 



MA'GILUS. Name of a genus of gas- 

 teropods. 



MA'GUS. Latin. Magical. 



MA'LLEUS. Latin. A hammer. A 

 genus of Ostracea. 



MA'NDIBLE. From the Latin, man- 

 dibula, a jaw. The jaw of a bird. 



MAN'TLE. The external fold of the 

 skin of mollusks. 



MA'RGARITI'FERA. Latin. From mar- 

 garitum, a pearl, and fero, I bear. 

 Pearl-bearing. 



MA'RGIN. The whole circumference 

 or outline of the shell in bivalves. 



MA'RGINATED. Having a prominent 

 margin or border. 



MEDITERRA'NEA. Latin. Belonging 

 or relating to the Mediterranean. 



MEDU'LLARY. From the Latin, me- 

 dulla, the marrow. Belonging or 

 relating to nervous matter. 



MELA'NIA. From the Greek, melas, 

 black. Genus of fresh- water gas- 

 teropods. 



MELEAGRI'NA. From the Greek, me- 

 leagris, a guinea-hen. A genus 

 of the family of Ostracea. 



MEM'BRANOUS. Belonging or relat- 

 ing to membrane. 



ME'SENTERY. From the Greek, me- 



sos, in the middle, and enleron, in- 

 testine. A membrane which 

 serves to retain the intestines in 

 their proper situation. 



METAMO'RPHOSIS. From the Greek, 

 meta, indicating change, and mor- 

 phe, form. Transformation. 



MICROSCO'PIC. From the Greek, mi- 

 kros, little, and skoped, I view. Di- 

 minutive. Not easily seen with- 

 out the aid of a magnifying-glass. 



MI'TRA. Greek. A head-band, or 

 diadem. A genus of gasteropods. 



MODIO'LUS. Latin. A bucket. A 

 genus of mussels. 



MO'LECULE. An atom. 



MOLLU'SCA. From the Latin, mollis, 

 soft. Name of the second branch 

 of the animal kingdom. 



MO'LLUSK. A soft animal. 



MO'NODON. From the Greek, monos, 

 single, and odous, tooth. A genus 

 of the family of Trochoides. 



MONODON'TA. Latin. Monodons. 



MONO'MYA'RJA. From the Greek, 

 monos, single, and muon, muscle. 

 Bivalves which have only one ad- 

 ductor muscle. 



MU'CRONATE. Ending in a sharp, 

 rigid point. 



MU'LTIVALVE. From the Latin, 

 multus, many, and valvtB, valves. 

 Composed of several, or more than 

 two calcareous pieces or valves. 



MULTILO'CULAR. From the Latin, 

 multus, many, and loculus, a lodge. 

 Many-chambered ; consisting of 

 several divisions. 



MU'REX. ^.Latin. A shell-fish. A 

 genus" o^fcasteropods. 



MU'RICES. Plural of Murex. 



MU'RICATED. Clothed with sharp 

 spines. 



MU'SCLE. Fleshy fibres capable of 

 contraction and relaxation. 



MU'SCUI.AR. Belonging or relating 

 to muscle. 



MU'SSEL. An acephalous mollusk. 



MY'A. From the Greek, muon, a 

 muscle. An acephalous mollusk. 



MYTILA'CEA. From the Greek, mu- 

 tilos, a mussel. Name of a family 

 of mollusks. 



MY'TILUS. Latin. A mussel. 



NA'CRE. From the Spanish, nacar, 

 mother-of-pearl. 



