PARASITES 



998 



PARASITES 



cinalis, de Filippi. Found in the lagoons of Mexico ; 

 used medicinally. — Haemogregarina avium, Dani- 

 lewsky. See Polimitus wrt/«r/<^, Danilewsky. — Haem- 

 opis sanguisorba, Savigny ; Haemopis sangui- 

 suga, Moquin-Tandon ; Haemopis vorax, Moquin- 

 Tandon. See Hirudo sanguisuga, Bergmann. — 

 Haemoplasmodium malariae, Marchiafava and 

 Celli. A hemocytozoon found in the blood of malarial- 

 fever patients. They are homogenous, protoplasmic 

 bodies from one-tenth to one-third the size of red blood- 

 corpuscles and within which they occur as pseudo- 

 vacuoles and also to which they impart a lively move- 

 ment by their protruded flagella (pseudospirilla). 

 Danilewsky regards this as but a developmental stage 

 of Polimitus malaria, q. v. — Halysis caprina, 

 Zeder (1803). See Linguatula rhinaria, Railliet 

 (1868). — Halysis gracilis, Zeder. See Taenia 

 gracilis, Rudolphi. — Halysis infundibuliformis, 

 Zeder. See Taenia infundibuliformis, Goeze. — 

 Halysis lanceolata, Zeder, Dujardin. See Taenia 

 lanceolata, Bloch. — Halysis lata, Zeder. See Both- 

 riocephalus latus, Bremser. — Halysis lineata, Zeder. 

 See Taenia lineata, Goeze. — Halysis litterata, 

 Zeder. See Taenia pseudo-cucumerina, Baillet. — 

 Halysis marginata, Zeder. See Taenia marginata, 

 Batsch. — Halysis membranacea, Zeder (1803). 

 See Bothriocephalus latus, Bremser. — Halysis pas- 

 seris, Zeder. See Taenia fringillarum , Rudolphi. — 

 Halysis perfoliata, Zeder. See Taenia perfoliata, 

 Goeze. — Halysis plicata, Zeder. See Taenia plicata, 

 Rudolphi. — Halysis pusilla, Zeder. See Taenia pu- 

 silla, Goeze. Halysis serrata, Zeder. See Taenia 

 crassicollis, Rudolphi, and Tenia serrata, Goeze. — 

 Halysis setigera, Zeder. See Taenia setigera, 

 Frolich. — Halysis sinuosa, Zeder. See Tcznia 

 sinuosa, Rudolphi. — Halysis solium, Zeder. See 

 Taenia solium, Linne. — Halysis torquata, Zeder. 

 See Tarnia sinuosa, Rudolphi. Halysis trilineata, 

 Zeder. See Taenia trilineata, Batsch. — Hammularia 

 lymphatica, Treutler (1793). See Filaria lymphat- 

 ica, Moquin-Tandon. — Hammularia subcom- 

 pressa, Rudolphi. See Filaria bronchialis. — Han- 

 choschim-Haschrofim, Heb. See Draaunculus 

 medinensis, Lister. Harpirhynchus nidulans, Meg- 

 nin. Syn., Sarcoptes nidulans, Nitzsch. The pubes- 

 cent nymphre have been found in the plumage of 

 pigeons and parrots. — Harvest-bug. See Tetrany- 

 chus autumnalis, Shaw. — Harvest-mite. See Leptus 

 irritans and Tetranychus autumnalis, also Trombid- 

 ium ameriaanum. — Harvest-tick. See Leptus irri- 

 tans. — Hauswanze. See Cimex lectularia, Merrett. — 

 Hautwurm. See Dracunculus medinensis , Cobbold. 

 — Head-louse. See Pediculus capitis, Leach. — 

 Heel- fly. See Hypoderma lineata, Low. — Helmin- 

 thopsylla alakurti, Schimkewitsch. Syn., Alakurt. 

 A flea, allied to the chigoe, abundant in Turke- 

 stan, upon horses, sheep, camels and oxen in the 

 autumn and winter, causing extreme debility. — He- 

 lophilus pendulus, Meigen. A dipterous insect, 

 the "rat-tailed" larv;e of which, according to Cob- 

 bold, not infrequently occurs in the digestive canal of 

 the horse. Cf. Fristalistenax,L.inn&. — Hematopota. 

 See Hcematopota. — Hematozoaires du paludisme, 

 Laveran. See Polimitus malariae (Laveran), Dani- 

 lewsky. — Hemistoma alatum (Goeze), Diesing. A 

 trematode common in the fox and wolf, and found in 

 the small intestine of the dog by Creplin and Schone. 

 — Hen-flea. See Pulex avium, Taschenberg. — Hen- 

 lice. See Goniocotes abdominalis, Piaget ; Goniocotes 

 hologaster , Nitzsch ; Goniodes dissimilis, Nitzsch ; 

 Goniodes burnetti, Packard ; Lipeurus heterographus, 

 Nitzsch ; Lipeurus variabilis, Nitzsch ; Menopon bi- 



seriatum, Piaget ; Menopon pallidum, Nitzsch. 



Herpetomonas lewisi, Saville, Kent. See Trypano- 

 soma lewisi, Danilewsky, Kent. — Herpetomonas 

 muscae domesticae, Saville, Kent. Syn., Afonomtia 

 muscarum, Grassi ; Cercomonas muscarum, 

 Bodo muscae domesticae, Burnett. Often found in 



abundance in the chylinc stomach of the house-flv. 



Heterakis columbae, Gmelin. See Heterakis macu- 

 losa, Rudolphi. — Heterakis compressa, Schneider. 

 A nematode found in the intestine of the domestic 

 fowl in South Australia. — Heterakis differens, Son- 

 sino. This is found in the posterior portion of the 

 fowl's intestine. — Heterakis dispar, Schrank. Syn., 

 Ascaris dispar. This was found in the intestine and 

 cecum of the domestic goose and duck by Frohlich, 

 Schrank, and Zeder. — Heterakis infiexa, Rudolphi. 

 Syn., Ascaris crassi, Deslongchamps, Ascaris teres, 

 Goeze; Ascaris gallopavonis, Gmelin; Ascaris pcrspi- 

 cillum; Rudolphi, Dujardin; Heterakis perspicillum ; 

 Fusaria rejlexa, Zeder. This is found in the in- 

 testine of the domestic fowl, turkey and duck, and 

 is abundant in the latter about Caen. — Heterakis 

 lineata, Schneider. This was found in the intes- 

 tine of the domestic duck of Turkestan by von Lin- 

 stow, and in a Brazilian cock by Schneider. — Hete- 

 rakis maculosa, Rudolphi. Syn., Ascaris maculosa, 

 Rudolphi, Bremser, Bellingham, Dujardin ; Ascaris 

 columbce, Gmelin ; Ascaris teres, Goeze ; Heterakis 

 columba, Gmelin; I'ascaride del piccioni, Itai. 

 This is found in the intestine of the domestic pigeon, 

 producing frequently a fatal disease. Unterberger 

 has shown that the eggs of this nematode re- 

 quire to be kept for about seventeen days under 

 suitable conditions outside the body of the host be- 

 fore they are capable of further development in the 

 intestine. — Heterakis papillosa, Bloch. Syn., 

 Heterakis vesicularis, Frohlich, Dujardin ; Ascaris 

 vesicularis, Rudolphi ; Ascaris tetraonis, Gmelin ; As- 

 caris papillosa, Bloch ; Ascaris teres (minor Phasiani 

 et picti), Goeze ; Ascaris gallinar urn, Gmelin ; Ascaris 

 urogalli, Viborg, Rudolphi ; Fusaria tetraonis. Zeder; 

 Fusaria papillosa, Zeder. This is found in the cecum 

 of the fowls, duck, peacock, and turkey. — Heterakis 

 perspicillum, Rudolphi. See Heterakis infiexa, 

 Rudolphi. — Heterakis spumosa, Schneider. Thi^ 

 is found in the intestine and cecum of the brown 

 rat (Mus decumanus, Pallas). — Heterakis unci- 

 nata, Rudolphi. This is found in the intestine 

 and cecum of the domestic guinea-pig. — Heterakis 

 vesicularis, Frohlich. See Heterakis papillosa, Bloch. 

 — Heteromita lens, Miiller. Syn., Monas lens, 

 Dujardin. Found in the mouth of man by Steinberg. 

 — Hexacotyle venarum, de Blainville. See Hex 

 athyridium venarum, Treutler. — Hexamita duo- 

 denalis, Davaine. See Alegastoma intestinale, Hlanch- 

 ard. — Hexastoma pinguicola, Cuvier. See Hexa- 

 thyridium pinguicola, Treutler. — Hexastoma vena- 

 rum, Cuvier. See Hexathyridium venarum, Treut- 

 ler. — Hexathyridium pinguicola, Treutler, Jordens, 

 Brera. Syn., Hexastoma pinguicola, Cuvier ; Lingittt- 

 ill a pinguicola, I .amarck ; Polvstomum pin 

 Zeder, Rudolphi, Bremser. A trematode found in the 

 ovaries in women. Van Beneden and Gervais hold thi- 

 as likely to prove a larval form of Linguatula > 

 Railliet, from which opinion Cobbold differs. — Hexa- 

 thyridium venarum, Treutler, Jordens, Rudolphi. 

 Syn., Hexastoma venarum, Cuvier; Hexacotyle venar- 

 um, de Blainville; Linguatula venarum, Lamarck; 

 Polystoma sanguicola, Delle Chiaje, Frick ; Po/ystotne 

 venarum, Zeder, Rudolphi, Dujardin, Owen. Tbis 

 is found in the veins of man; Rudolphi and others 

 referred this to the fresh-water Planarne, and Davaine 



