380 GLOSSARY. 



Polyzoa in which the mouth is devoid of the valvular structure known ae 



the '•' epistoine." 

 GrM-NO-PHi'o-NA (Gr. gumiios^ naked; op?///s, a snake). The order of tho 



Amphibia coniprising the snake-like Ctvcillix. 

 Gtm-noph-thal'ma-ta {Gv. qumnos; and ophthalmos^ the eye). Applied by 



Edward Forbes to those 'Metlmm in which the eye-specks at the margin of 



the disc arc unprotected. The division is now abandoned. 

 GvM-NO-so'iiA-TA ((-rr. (jajiiHO^ .* and soino^ the body). The order of Pleropoda 



in which the body is not protected hy a shell. 

 Gyx'o-piiores {(jv.' gnne^ woman ; jo/^^/'o, I carry). The generative huds, or 



gouophores, oi H>jd.rozoa^ which contain ova alone, and dilt'er in form frcjin 



those which contain spermatozoa. 

 Gt-ken-ceph'a-la (Gr. r/vt-oo^ I wind about; eghephalos^\)\-d\n). Applied by 



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



abundantly convoluted. 



ILe'mal (Gr. haima^ blood). Connected with the blood-vessels, or with the 



circulatory system. 

 H.e-x\ia-toc'ry-a (Gr. 7mma, blood; Xvwm, cold). Applied by Owen to the 

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



H,e-ma-to-ther'ma (Gr. haima., blood ; thermos^ warm). Applied by Owen to 

 the '' wann-blooded" Vertel>rates — viz.. Birds and Mammals. 



Hal'lux (Lat. aJlex..^ the thumb or great toe). The innermost of the five 

 digits which normally compose the hind foot of a Vertebrate anhnal. In 

 man, the great toe. 



Hal-te'kes (Gr. Jialt^-res^ weights used by athletes to steady themselves in 

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

 posterior pair of wings in the D/ptera^ an order of Insects. 



Haus'tel-late (Lat. haurlo^ I drink). Adapted for sucking or pumping up 

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



Hec-to-oot Y-Lus (Gr. helcaton., sl hundred; kotulos^ a cup). The metamor- 

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

 Argonaitt tlie arm becomes detached, and was originally described as a 

 parasitic worm, 



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



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

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

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



Hem-i-met-a-bol'io (Gr. hemi^ half; metabole^ change). Applied to those 

 insects which undergo an incomplete metamorphosis. 



He-mip'te-ra {Gr. he?ni-; and pteron, wing). An order of insects in which 

 the anterior wings are sometimes " hemelytra." 



Her-jtaph'ro-dite (Gr. Mervies^ Mercury ; ApJtrod/te, Venus). Possessing 

 the characters of both sexes comliincd. 



Het-e-ro-cer'cal (Gr. heteros^ diverse; kerkos^ tail). Applied to the tail of 

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



Het-e-ro-ge'ne-ous. 



IlET-E-RO-aAN'oLi-ATE (Gr. lidevo^^ div'ersc ; gagijlion^ a knot). Possessing a 

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

 in the Mollmca^ for example). 



I1et-e-ro-mor'phic (Gr. heteros ; morphe^ form). DifTering in form or shape. 



Uet-e-ropfi'a-gi (Gr. heteron^ other; pkago, 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. 



IIet-e-rop'o r>A. 



IJex'a-pod (Gr. liexa^ six; poas^ foot). Possessing six legs; applied to the 

 Liseda. 



Hi'lum (Lat. hiJuni^ a liltle thing). A small aperture (as in the gcmmules of 

 Bponges), or a small depression (!is in Noctilura). 



Eir-u-i>in'e-a (Lat- hirudo^ a horse-leech). The order of Annelida com^ 

 prising the Leeches. 



