HIPPOBOSCIDJE 



166 



HISTOLOGY 



horse; bosko, I feed.]=Forest-fly=Horse-fly: 

 the type of Hippoboscidae, q.v. 



Hippoboscidae, (hip-po-bos'i-dc). [Hippoboaca, 

 q.v. ; Gk. eidos, form.] A family of insects, 

 belonging to Diptera, living on horses, sheep, 

 and other quadrupeds, and on birds. 



Hippocampal, (hip-po-kam'pal). [Hippocam- 

 pus, q.v.] H. commissure, in. brain; in rep- 

 tiles, at its lowest stage. 



Hippocampidae, (hip-po-kam'pi-de). [Hippo- 

 campus, 3.1;.]= Sea-horses: fishes, belonging 

 to Syngnathidae, having a marsupial pouch, 

 for the eggs, in males only, and loug flexible 

 prehensile tails: named from the resemblance 

 t<> a horse's head. 



Hippocampus, (hip-pd-kam'pus). [Gk. hippos, 

 horse; kamptos, bent.] 1.= Horse-fish : a 

 small fish, the type of Hippocampidae, q.v. 

 2. A white eminence in the brain. H. 

 major: a projection of the posterior cornu 

 of the cerebrum, continuous with the corpus 

 callosum. H. minor: a projection of the 

 descending cornu of the cerebrum, con- 

 tinuous with the corpus callosum. 



Hippocastaneae, (hip-p6-kas-ta'ne-e). [Hippo- 

 castaueum, <?.v.]=Sapindace{e, q.v. 



Hippooastaneum, (hip-po-kas-ta'ne-um). [Gk. 

 hippos, horse.] = Horse-chestnut=Aesculua 

 hippocastanum, q.v. 



Hippocrateaceae, ( hip-po-krat-e-a'se-e ). 

 Hippocrates.]=Hippocrateads: shrubs, with 

 opposite leaves and polypetalous flowers, be- 

 longing to Rhamnales. 



Hippocrepian, (hip-po-kre'pi-an). [Gk. hippos, 

 horse; krepis, shoe.] Horse-shoe shaped. 

 H. potyzoa = Those having a horse-shoe 

 shaped lophophore=Phylactola9mata. 



Hippocrepis, (hip-p6-kr5'pis). [Gk. hippos, a 

 horse; krepis, a shoe .]= Horse-shoe vetch: an 

 herb, with yellow flowers, belonging to Ley u- 

 minacese, named from form of legume. 



Hippoglossus, (hip-po-glos'susX [Gk. hippos, 

 horse; glossa, tongue.] = Halibut = Pleuro- 

 nectes hippoglossus: a large flounder-like 

 fish. 



Hippomane, (hip-po-ma'ne). A plant belong- 

 ing to Euphorbiaceaj. H. mancinella.= 

 Manchineel tree. 



Hippophae, (hip-pofa-e). [Gk. hippos, horse; 

 phao, I shine.]=Sea buckthorn: a silvery 

 shrub, belonging to Elseagnacese. 



Hippopodium, (hip-po-po'di-um). [Gk. hippos, 

 horse; pous, foot.] A large heavy shell, found 

 in Lower Lias rocks. 



Hippopotamidae, (hip-po-pot-am'i-de). [Hip- 

 popotamus, q.v.; Gk. eidos, form.] A family 

 of animals, of which Hippopotamus ia the 

 only genus. 



Hippopotamus, (hip-pd-pot'a-mus). [Gk. hip- 

 pos, horse; pota- 

 mios, of a river.] 

 A hoofed pachy- 

 dermatous quad- 

 ruped Jiving near 

 rivers, having ob- 

 tuse truncated 

 foreteeth. Fossil 

 in Pliocene. Hippopotamus. 



Hippotherium, (hip-po-the'ri-urn). [Gk. hip- 



pos, horse; therion, beast.] A horse-like 

 animal, known by fossil remains found in 

 Miocene rocks. 



Hippotomy, (hip-po-pot'o-mi). [Gk. hippos, 

 horse ; tome, section. ]= Anatomy of horses. 

 v. Zootomy. 



Hippurates, (hip-pu'rats). [Hippuric, q.v.} 

 Compounds of hippuric acid with bases: 

 hippuric acid in which one equivalent of 

 hydrogen is replaced by one of a base. 



Hippuric acid, (hip-pu'rik). [Gk, hippos, 

 horse; ouron, urine] =C9H9NO3=Benzoyl 

 glycocine; a crystalline acid substance found 

 in the urine of horses, cows, &c. 



HippurideaB, (hip-pu-rid'e-6). [Hippuvis, q.v.; 

 Gk. eidos, form.J=Hippurids=Haloragace3a, 

 q.v. 



Hippuris, (hip-pu'ris). [Gk. hippos, horse; 

 oura, tail.]=Mare's tail: an aquatic herb, 

 with small flowers, belonging to Haloragacese. 



Hippurite, (hip-pu'rit), [Hippuris, q.v.} 

 Lamellibrauchiata, peculiar to Upper Cro- 

 taceans. 



Hippurite, H. limestone: belongs to Upper 

 Cretaceous formation; distinguished by the 

 presence of Hippurites and other Rudistes. 



Hippurites, (hip-pQ'ri-t5z). [Hippuris, q.v.] 

 1. Marsh plants, known by fossil remains 

 found in Lias rocks. 2. A mollusc belonging 

 to Lamellibranchiata fossil in Cretaceous 

 rocks only. 



Hircic acid, (her'sik). [Hircus, q.v.] An acid 

 obtained from goat's fat. 



Hircin, (her'sin). [Hircus, q.v.] A principle 

 found in goat's fat. 



Hircite, (her'slt). [Hircus, q.v.] A mineral, 

 chiefly an amorphous acid hydrocarbon, 

 named from its odour. 



Hircus, (herlcus). [The Latin name.]=Capra 

 hircus=Goat, 5.1*. 



Hirudinea, (hi-ru-din'e-a). [L. Hirudo, leech.] 

 =Leeches: aquatic, vermiform animals, be- 

 longing to Annelida, also called Di&cop/iora 

 and Suctoria. 



Hirundinidae, (hi-run-din'i-de). [Hinindo, 

 q.v.] A family of birds, belonging to Insea- 

 aores. 



Hirundo, (hi-rnn'do). [The Latin name.]= 

 Swallow: a swiftly-flying, migratory, insecti- 

 vorous bird, having a sharp pointed beak 

 and long wings; found in watery places; be- 

 longs to Passeres. H. nestica^Swallow. H. 

 ur6ica=Martin. 



Hisingerite, ( his-in'jer-It ). [ Hisinger, a 

 Swedish chemist.] A mineral, chiefly hydrated 

 silicate of iron, very hygroscopic. 



Hislopite, (his'lo-pit). A compound of calcite 

 and glauconite, also called green limestone. 



Histioderma, (his-ti-6-der'ma). [Gk. histion t 

 sail ; derma, skin.] Small annelidoid bur- 

 rows in Schistose rocks. 



Histionotus, (hia-ti-o-no'tus). [Gk. histion, 

 sail; notos, back.] A fresh-water fish, known 

 by fossil remain*, found in Pleistocene rocks. 



Histiophorus, (his-ti-ofo-rus). [Gk. histion, 

 sail; phero, I bear.] A sword-fish, 



Histological, (his-to-loj'i-kal). [Histology,5.v.} 

 Referring to or connected with histology. 



Histology, (his-tol'6-ji). [Gk. histos, web; 



