.•!84 GLOSSARY. 



Lt-en-ceph'a-la (Gr, luo, I loose ; eglf^lalos, Ijrtiin). A primary diviaiot 

 of Maraiaals, according to Oweu. 



Mao-eo-dac'ty-li (Gr. malros, long; daktulos, a finger). A group of the 



Wading Birds. 

 IiIa-orii'ea (Gr. mofcos, long; owra, tail). A tribe of Decapod Crudaeeane 



with long tails {c g'., the Lobster, Shrimp, etc. ). 

 Mad-he-por'i-itorm. Perforated with small holes, like a coral ; applied to the 



tubercle by which the ambulacral system of tlie A'c/iiiioJcnns mostly com- 

 municates with the exterior. 

 Mal-a-co-derm'a-ta. 

 Mal-a-cos'tea-ca (Gr. malahos, Boi't; odraton, shcW). A division of Cnm- 



tacea. Originally applied by .Aristotle to the entire class Crustacea, because 



their shells were softer than those of the Mollasca. 

 Mal-loph'a-oa (Gr. maUos, a fleece; p/iaffo, I cat). An order of Insects 



which are mostly p)arasitic upon birds. 

 Mam-ma'lia (Lat. mamma, the breast). The class of Vertebrate animals 



which suckle their young. 

 Man'di-ble (Lat. mandihuium., a jaw). The upper pair of ,iaws m Insects ■, 



also applied to one of the pairs of jaws in Crustacea and .Spiders, to the beak 



of Cephalopods, the lower jaw of Vertebrates, etc. 

 Man'tle. The external integument of most of tlie llollusca, which is largely 



developed, and forms a cloak in which the visc>;ra are protected. Techni- 

 cally called the " pallium." . , , j, 

 Ma-nu'bei-um (Lat. for a handle). The polypitc which is suspended trona 



the roof of the swimming-bell of a Medusa, or from the gonocalyx of a 



medusitbrm gonophore among the litidrozoa. 

 .Ma'nl's (Lat. for tlie hand). The hand of the higher Vertebrates. 

 Mae-sip-o-beanch'i-i ( Gr. marsinos, a pouch ; iragchia, gills). The order of 



Fishes comprising the Hag-flshes and Lampreys, with pouch-like gills. 

 Mae-su-pi-a'li-a (,Lat. inarsiipium, a pouch). An order of Mammals in which 



the females mostly have an al idominal pouch in whfeh the young are carried. 

 Mas'tax (Gr. for mouth). The muscular pharynx or " buccal funnel" into 



which the mouth opens in most of the Kotifera. 

 Mas-ti-ca'to-et (Lat. mustico, I chew). Applied to parts adapted tor chewing. 

 Max-il'l/E (Lat. for jaws). The inferior pair or pairs of jaws in the Artliro- 



poda (Insects, Crustacea, etc.). The upper jaw-bones of Vertebrates. 

 M)vx-il'li- PEDES (Lat. maxUlcn, jaws ; »«, the foot). The limbs m Crustacea 



and .Vijrhipoda which are converted into masticatory organs, and are com- 



monlv called " foot-jaws." 

 Me-di-l'la (Lat. for marrow). Applied to the man-ow of bones, or to the 



spinal cord, with or without the adjective " spinalis." 

 Me-du'sj: An order of IJi/drozoa, commonly Imown as Jelly-hshes {Disco- 

 plwra or Acalpha:), so called because of the resemblance of their tentacles 



to the snaky hair of the Medusa. Many Medusa are now known to be 



merely the gonophores of Ui/dro-oa. 

 Me-du'si-foem. Kesenililiun- a JA-t/w.sa in shape. , 



Me-du'soid. Like a Medusa : used substanti\'elj to designate tlie medusitorm 



gonophores of the ii','/'^«e.i«. ,-, ,. -o- i 



Mem-bka'na nic'ti-tans (Lilt, lucfn, 1 wink). Die tliird eyelid ot Birds, etc. 

 Men'tuji (Lat. for the eliini. The dasal portion oC tlie labium or lower lip 



in Insects. v n 4 



Me-eo-stom'a-ta (Gr. iii'-ron, tliitch ; stoma, mouth). An order ot Crustacea 

 in which tlie appendages which are placed round the month, and which 

 officiate as jaws, have tneir free extremities developed into walking or pre- 

 hensile organs. . . i • t 1 

 Mes-en-te'ei-es (Gr. mesos, intermediate ; enteron, intestine), in a restricted 

 sense, the vertical plates which divide the somatic cavity of a fcea-anemone 

 i Actinia) into chambers. 

 Me8-o-po'ui-um (Gr. mesos, middle; pous, foot). The middle portion ot tlie 

 "foot" of Molluscs. 



