168 Platelminthes. — Xematelmintlies. — Xematodes. 



Malacobdella Blainv. {PfiiiUixe Okex, Xcuisinm Blaxch. olini, Branchio- 

 h(MJa Gk.w). (irinis uniciuu. iiofis snhordiiiis (lisfiurfifni. 



1. M. grossa Hlaixv. {Hirii(h) f/rfjssa 0. F. M., 31. Vdloiciemiaoi BLAxrH.). 

 Corpus (leijrus.suiu latum; os transversum in extreinitate anteriore, superne emar- 

 ginatum; pharynx ab intestino distinctum, villis munitus: color all)idus aut flavidiis, 

 postice cinereo-viridis albide reticulatus; intestinuni fuscuni translucens. Longit. 

 30—40 mni, latit. 8—10 mni i, 12—15 min $. 



Distril). : ^[aria europaea, in cavo brancliiali nii)lluscoruni lamellibrancliia- 

 tiirum. 



Habit.: In cavo branchiali ilfy^f^ frimcafac. Sicilia (Hlaixvii.i.k, Hlaxchakd). 



Sede incerta. 



Fam. DINOPHILTDAE v. Ctrafk. Habitus \'(iiticuni, sed corpore (luasi 

 segmentato : ajiei-tura oris i»one oculos; intestiiiuiii siinidcx, siiie ])roloiig'atione an- 

 tica; ovaria paria. 



Dinophilus O. Sch.m. Corjms quasi scfimenfis coniposifioii, cauda ammlafa; 

 capnt friaiii/iihire, ciliis longiorihas ocaJisfj[ue semihinafis ; i^rohoscis oesophafio imposifa, 

 2)er aperfiiram oris profrmli pofcst ; ■infestinuni ano antc caiulam sito insfrucfum ; 

 sexiis separoti. 



m 1. D. gyrociliatus O. Schm. Corpus l.") niin loniiuni, all)iduiii, gyris 

 7 — 8 ciliorum longiorum cinctum; cauda conica ; oculi duo: ovaria bina (V). 



Habit.: Xapoli (0. Schmidt). 



2. Class. Nematelmintlies. 



I. Ordo. Nematodes. 



1. Fam. ASCARIDEA Vax Bkx. Corpus crassiusculum: os labiis tribus, 

 cavuni tubulare aut prismaticum includentibus, praeditum, uiio dorsali, alteris 

 lateialibus subtus se taugeiitibus : pars jjosterior pharyngis saepe bulbosa , saepe 

 dciitibus arniata; apertura geiiitalis mascula prope ab apice incurvato postico, 

 ]»lt'ruiii(|Ui' s])i(ulis duobus; vulva ante mediuiii corj^oris. 



Ascaris L. (.'orpus utrinfiue atfenuatuin , luhiis dltis cf lulis sac/tc indn/iiic 

 (lenficulatd : /thur//ii.f sinr purte hulhosa; 6 spirulis duohus acijuulihus : rulru aif fincin 

 /xirfis tcrtiur uiihridris corjmris. 



1. A. acuta O. F. ]\[(^iiL., ]\[()l. Caput miduiii; os labiis rotuudatis: coi])Us 

 laeve, flexuosum; extremitas anterior valdc attciiuata, caudalis ^ si^iraliter torta, 

 increscens, subtus seriebus dualnis papillaruiii cxiguaruiii, a])icc acuiiiinato; vagina 

 ])enis . . . ; e.xtremitas caudalis § acute conica, recta. Longit. i 2r>, crass. U,;'), 

 long. 5 If) — l'! (I), crass. 0,8^ — 1,0 niui. 



Habit. : Wunnlms ma.rinius. intestiiia : Tadova (Moi.ix). 



2. A. minuta ^loi,. Cajiut aiitcrum, c])i(lcrnii(lc strictc adnata : os trila- 

 biatum, lal)iis c.xiiiiiis, singulum i)a])illa ccntrali ; cor])Us aiitroisuiii attcnuatum; 

 cauda $ apice mucronato, vesicula poiie aui Iiiatum. Loiigit. Ki iiiiu. crass. o.i' miii. 



Ilabit.: Phifrssii /m.^^srr. iiitcstina : l*adova (Moi.in). 



*3. A. crassicauda l!i :>. Cori^us iitiiiniuc. inagis tauicu aiitnirsiiiii atte- 

 nuatuiii: labia (listiiicta, tniiicata. sacpc liiantia, alias duo tcrtia iiicliiis consijicua ; 



