138 Platelminthes. — Trematodes. — Turbellaria. 



pedatus et sagtffafits Dies.). Corpus depressum, elongatum, postice elongatum; ace- 

 tabula antica ovalia, denticulata; porus f?enitalis uncinis majoribus in series tres 

 arcuatas, arcum bis interruptum formantes ordinatis et minoribus orificio propio- 

 ribus instructus; acetabula posteriora uncinis 4 arraata; ova fusiformia utrinque 

 tilo mediocri, ovis ipsis bis longiore instructa. Loug. 5 — 10 mm. 



Distrib.: Ad brancliias Beloiirs acits: Maria europaea. 



Habit.: Kodem loco: Trieste (Lokenz jr.). 



Microcotyle Hesse et Van Bex. Corpm s/jmmefrkitm , eloiujafitm, anfice 

 paitJliim affenuafitm; xxtrs posfica sfricfiira a reliquo corpore tViscrefa, acuminata, 

 maryine itfroqite acetahitlifero ; aperfitrae gcnifales et mginae mediae; ova ovafia 

 fiJis hinis. 



1. M. Mormyri Luk. jr. Corpus valde elouiratum, post quintam anteriorem 

 longitudinis partem leviter constrictum; appendi.x caudiformis utrinque 130 — 200 

 acetabulis; apertura genitalis feminea bacillis cliitinaceis circumdata, anterioribus 

 8 — 12 longioribus radiatim aut arcuatim dispositis, extremitate postica uncinifera, 

 posterioribus acervulos duos formantibus, 25-^30 utrinque, antice liamatis; penis 

 nullus. Long. 5 — 8 mm. Albida, cinereo marginata. 



Habit.: Panrlfus morm/jrus, ad branchias: Trieste (Lokexz jr.). 



? Aspidogaster v. Hakk. Corpus subellipticum, supra convexum, subtus 

 planum, antrorsum in coUum subcylindricum, retrorsum in caudam brevem pro- 

 ductum, lamella ventrali subelliptica; os terminale; acetabula numerosa quadran- 

 gularia in lamella serie quadruplioi regulariter disposita, clatljrum formantia. 



?A. ? ascidiae v. 1>ahk. ..Animalia nigrescentia leucopliaea maculis nigris 

 variegata." Magnitudine frumenti grani (Redi). 



Habit. : Ascidiac sp. Olentitla marina Redi), in cavo corporis, in mari 

 Ligustico (Redi). 



4. Subfiim. Gyrodactylidae Vax Ben. Corpus minutum. angustum, elon- 

 gatum, pars anterior laciniis 2 aut 4 retractilibus instructa aut lobiformis, postice 

 acetabulo 1 aut 2 , uncinis centralibus 2 aut 1 et marginalibus numerosis aut 

 apparatu fdrtieiformi. 



Dactylogyrus Dies. Corpns suhr/jlindrirum, caput laciniis quatuor; aceta- 

 hulum iHiiiilarr lirmispharricum duplrx. e.drrniim majus marf/ine dcnfafo. intcrnum 

 uncinis duohits crntraJihus acrfahulo c.rferno arquiloni/is divrnfnfihus. 



?D. echeneis O. Wonk. 



Habir.: Ad ^iYdw.hiAii Clir/jsoplin/os (iitralar: Mediterraneum ? ((x. Wacjener). 



Diplectanum Dies. {Bacfijlog/jrus Ct. Wonr.). ])acti/lo(j//ro similc, srd jiler- 

 tanis ( (icihdiuHs li(isilarihits) duohits munifum. 



?D. aequans Dies. (])acf/jlo(i//rits aeqitans G. Wgnk.). 



Haliit.: Ad brancliias Lahracis lupi: ?Mediterraneum ((i. Wa(;ener). 



?D. pedatum Dn:s. [I)(t(fi/lo(j//rus jirdatus (r. Wgnr.I 



Habit.: Ad braneliias Jiilidis sp. ?: ? Mediterraneum (d. WagexerV 



III. Ordo. Turbellaria. 



L Subordo. Rhabdocoelida v. Graff. 



Turbellaria intestino nullo aut simplici recto, interdum bdiulato, pliarynge 

 nuUo aut vario modo formato, organis genitalibus masculis aut compactis aut 

 folliculosis, vesiculis numerosis compositis, femim'is semper comi>actis. Animalia 

 parva, corpore terete, rarius depresso plano elongato. 



