(334 GLOSSARY. 



Polyzoa in wHch the mouth is devoid of the valvular structure known as 



the " epistome." , n mv 



Gtm-no-?hi'o-na (Gr. ffumnos, naked; opMs, a snake), ine order oi the 



^mpAJSia oomprising the snake-like CoBCJ&iB. ,. , -, 



6tm-noph-thal'ma-ta (Gr. gumnos; and opMhahnos, the eye). Applied hy 



Edward Forbes to those Medmce in which the eye-speoks at the margin of 



the disc are unprotected. The division is now abandoned. 

 Gym-no-so'ma-ta (Gr. gumnos ; and soma, the body). The order of Pteropoda 



in which the body is not protected by a shell. 

 Gyn'o-phoees (Gr. gum, woman ; phero, I carry). The generative buds, or 



gonophores, oi Sydrozoa, which contain ova alone, and differ in form from 



those which contain spermatozoa. 

 Gy-een-oeph'a-la (Gr. quroo, I wind about ; eghephaloB, brain). Apphed by 



Owen to a section of the Mammalia in which the cerebral hemispneres are 



abundantly convoluted. 



H^'mal (Gr. liaima, blood). Connected with the blood-vessels, or with the 

 circulatory system. 



Hj!-ma-too KY-A (Gr. haima, blood; Terms, cold). Applied by Owen to the 

 "cold-blooded" Vertebrates — viz., the Fishes, Amphibia, and Eeptiles. 



H^-ma-to-theb'ma (Gr. haitna, blood ; thermos, warm). Applied by Owen to 

 the "warm-blooded" Vertebrates— viz.. Birds and Mammals. 



Hal'lhx (Lat. oHct, the thumb or great toe). The innermost of the five 

 digits which normally compose the Mnd foot of a Vertebrate animal. In 

 man, the great toe. 



Hal-te'ees (Gr. Jialtires, weights used by athletes to steady themselves in 

 leaping). The rudimentary filaments or "balancers" which represent the 

 posterior pair of wings in the Diptera, an order of Insects. 



Haus'tel-late (Lat. haurio, I drink). Adapted for sucking or pnmpinw^up 

 fluids ; applied to the mouth of certain Crustacea and Jnsecta. 



Hec-to-cot Y-urs (Gr. Tiehaton, a hundred ; leotulos, a cup). The metamor- 

 phosed reproductive arm of certain of the male Cuttle-fishes. In the 

 Argonaut the arm becomes detached, and was originally desoiibed as a 

 parasitic worm. 



Hel'min-thoid (Gr. Tielmins, an intestinal worm). "Worm-shaped, vermiform. 



He-mel'y-tea (Gr. Tiemi, half; elutron, a sheath). The wings of certain In- 

 sects, in which the apex of the wing ia membranous, while the inner por- 

 tion is ohitinous, and resembles the elytron of a beetle. 



Hem-i-met-a-eol'ic (Gr. Jiemi, half; metabole,' okan^e). Applied to those 

 insects which undergo an incomplete metamoi-phosis. 



He-mip'te-ea (Gr. hemi; and pteron, wing). An order of insects in which 

 the anterior wings are sometimes " hemelytra." 



Hee-maph'ko-dite (Gr. Hermes, Mercury; Aphrodite, Venus). Possessing 

 the characters of both sexes combined. 



Het-e-eo-oee'oal (Gr; heteros, diverse ; Jeerhos, tail). , Applied to the tail of 

 Fishes when it is unsymmetrical, or composed of two unequal lobes. 



Het-e-eo-ge'ne-otjs. 



flET-B-KO-OAif'GLi-ATE (Gr. hetcTos, dlvcrse ; gagglion, a knot). Possessing a 

 nervous system in which the ganglia are scattered and unsymmetrical (as 

 in the Mollusca, for example). 



1Iet-e-ko-moe'piiio (Gr. heteros; m^rphe,foYTa). Difi^ering in form or shape. 



Het-e-eoph'a-gi (Gr. heteros, other: phago, I eat). Applied to Birds the 

 young of which are born in a helpless condition, and require to be fed by 

 the parents for a longer or shorter period. 



Het-e-eop'o-da. 



Hbx'a-pod (Gr. hena, six; pons, foot). Possessing six legs ; applied to the 

 Insecta. 



Hi'lum (Lat. "hilum, a little thing). A small aperture (as in the gemmules of 

 sponges), or a small depression (as in Nootilu(M). 



Hie-u-din'e-a (Lat. hirudo, a horse-leech). The order of AnneUda com- 

 prising the Leeches. 



