372 GLOSS ABY. 



Longitudinal — Runmng lengthwise. 



Loral plate — Plate between eye and mouth of a serpent. 



Lore — Space between eye and bill. 



Mailed eTieeJcs — Having the suborbital bone extending over the 



cheeks, articulating with the preopercle (cheeks not neces- 

 sarily hard or bony) ; said of some fishes. 

 Mandible — Under jaw (or in bii'ds, either jaw.) 

 Maxilla — Upper jaw. 

 Maxillaries — Outermost or hindmost bones of the upper jaw, in 



fishes. 

 Metacarpus — The hand proper, exclusive of the fingers. 

 Metatarsus — The foot proper. (See Tarsus.) 

 Molars — The grinding teeth; posterior teeth in the jaw. 

 Moniliform — Necklace-shaped — widened at regular intervals. 

 Monogamous — Pairing; said of birds. 

 Mueiferous — Producing or containing mucus. 

 Na/pe — Upper part of neck, next to the occiput. 

 Nasal — Pertaining to the nostrils. 

 Neural — Pertaining to nerves. 



Nictitating membrane — The third or inner eye-lid, of birds, etc. 

 Nuchal — Pertaining to the nape or rumha. 

 Obscure — Dark, scarcely visible. 

 Obsolete — Faintly marked; little evident. 

 Obtuse — Blunt. 



Occipital — Pertaining to the occiput. 

 Occipital plates — Plates on the head of a serpent, behind the 



vertical plate. 

 Occiput — Back of the head. 

 Ocellate — "With eye -like spots, generally roundish and with a 



lighter border. 

 Oeherous — Brownish yellow. 

 Oid {suffix) — Like — as Percoid, perch-like. 

 Opercle, or operculum — Gill cover ; the posterior membrane bone 



of the side of the head, in fishes. 

 Opercula/r bones — Membrane bones of the side of the head, in 



fishes. 

 Opereula/r flwp — Prolongation of the upper posterior angle of the 



opercle, in Sun -Pishes, etc. 

 OpistUocoeliam, — Concave behind ; said of vertebrae. 

 Orbicula/r — Nearly circular. 



