372 GLOSSARY. 



Longitudinal— Rnnmng lengthwise. 



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



Ljore — Space between eye and bill. 



Mailed cheeks — Having the suborbital bone extending over tlio 



cheeks, articulating with the preopercle (cheeks not neces- 

 sarily hard or bony) ; said of some fishes. 

 Mandible— \jn<leY ydw (or in birds, 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—^eckVdce-shsii^ed — widened at regular intervals. 

 Monogamous — Pairing; said of birds. 

 Muciferous — Producing or containing mucus. 

 Nape — Upper part of neck, next to the occiput. 

 Nasal — Pertaining to the nostrils. 

 iV<??rm^— Pertaining to nerves. 



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

 Nuchal — Pertaining to the nape or nucha. 

 Obscure — Dark, scarcely visible. 

 Obsolete— Y-c\mi\j marked; little evident. 

 Obtuse — Blunt. 



Occipital — Pertaining to the occiput. 

 Occipital p/rt/es— Plates on the head of a serpent, behind the 



vertical plate. 

 Occiput — Back of the head. 

 Ocellate—W\X\\ eye -like spots, generally roundish and with a 



lighter border. 

 Oeherous — Brownish yellow. 

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

 Opercle, or operculum— G\\\ cover; the posterior membrane bone 



of the side of the head, in fishes. 

 Opercular bones— lAembYnne bones of the side of the head, in 



fishes. 

 Opercular flap — Prolongation of the upper posterior angle of the 



opercle, in Sun -Fishes, etc. 

 Opisthocodian — ('oncave behind ; said of vertebrae. 

 Orbicular — Nearly circular. 



