^54 Platelminthes. — Tnrbellaria. 



area cerebrali et in tentaculis; apparatus copulationis masculinus siniplex aut 

 (luplex ]p<iiie ipsiiui saccum pliarynfreuni. 



Thysanozoon (trii!k {J-^olidicrros Qtkus. , Th/js. et Piaiifolis Sti.mps.. 

 Peasia p. Ctr.^y). Tenfacitla iiiaifiina/ia acmninata plicafa, riUi dorsales ramos 

 infcsfinalrfi rontincnfcs; raini iiifesfinalc>> non cxfra apcrientes; apparatus mascii- 

 linus (lniifcx. 



in 1. Th. Brocchii Ctrikk {Tcri/ijics BroccM Risso, Planaria Brocchi Risso, 

 Planarin tnlirycnlata . rcrrniosa , Dicfpicniaris DCh. , Th//s. iJicsingii Ctrlbk, aut. ; 

 Th//s. Dicqucinaris Okrst. , Th. fiihcrculatum, paiiillosum Ctrlhk, Eolidiceros Pa- 

 normus Qtfgs. , IJolid. Brocihii Qtfus. , 'Hi/js. Panormus, Foclci Dies.). Corpus 

 12 — 60 mm longuni, h — 25 nun latum, tenerum, ovatum, antice et postice rotun- 

 (latum, supra villis, rario)i])us in junioriV)Us, confertis in majoribus animalibus 

 tectuni, in area cerebrali villi nulli. in niedio dorso torosum, villis confertissiinis ; 

 villi fusiformes colore vario, albido, Havidofusco, latericio, nigroooerubM) , saepe 

 albo punctati ; ocelli in area cerebrali acervnlis elongatis, conjunctini formam ferri 

 etiuini referentibus dispositi, sparsi supra et subtus in tentaculis, in facie infera 

 inter tentacula utrinque agminati. 



Habit. : Toulon (Dlmahdin) ; Nizza (Risso, CiR.\KFFK); (Tenova (Ver.\ny); 

 Palermo (Ctklkk, (^l.\trkf.\(;ks); Napoli (Dkllk (,'hi.\.ik, Ql.\ti{kf.\(;es, L.\X(i) ; 

 Adria: Trieste (Fockk), ("lierso (StossichI. 



Pseudoceros L.\>(;. Tcnfacula marfjinalia pliciforinia acufa aut nhfusa: 

 rilli ilorsidrs iiuUi ; a/iparafns masculinus simplcx aut duplcx. 



m 1. Ps. velutinus T>ano (Proccros celutinm Blanch., llur/jlcpta rclutina 

 DiKs.i. C(n*pus ad '>() nnn bnigum, 20 nnn latuuL plannnL obb^ngum, antrorsum 

 angustatum , supra velutinum saturate nigro-coeruleum , excepta ai-ea cerebrali 

 dariore, subtus pallide coeruleo-nigrum ; os in fine partis tertiae anterioris: ap- 

 paratus nuisculinus simplex ; acetabulum in medio corporis. 



Habit. : Genova (Blanchard); Xapoli (Lano). 



m 2. Ps. superbus Lano. Corpus ad (!0 nim bnignm, 2;') mm latuuL 

 supra satnrate niiiid-coei iileum , stria angusta dilnte tlavo-aurantiaca marginali 

 (excepto margine anteriore inter tentacuhi I notatuuL subtns multo clarius ; os in 

 line partis quintae anterioris; aperturae apparatus masculini duplicis post mediani 

 secundam partem quintam , apertura feminea prope post eas ; acetabulum paullo 

 ante niedium corpus. 



Habit. : In saxis ad oras insulae Xisita (Lan(;). 



iit 3. Ps. maximus Lan(;. Corpns ad .^0 mm longnni. oO mm latnm, 

 antice et jiostice late lotundatum. toro dorsali magno, coipus reli(innm tenue, 

 mollissinnim , supra sordide flavuni aut obscure violaceo-brunneuin , macnlis fuscis 

 )'eticnlatim conjunctis signatum, suV)tus sordide tlavo-fuscuni : apjiaratus mascu- 

 linus sinii)]ex. 



H abi t. : Xaiinli (L.\N(;). 



m 4. Ps. Miilleri Lam; {Plnnaria Jliilliri DCil, nec Sav. , riii/sanozoon 

 Mulliri Okrst.). Coi-pns 2 ixill. longniii . 1 poll. latnm . ov;»to-coidaruiii , antice 

 t)'iIoV)Ui)L snp)'a flisc(j-)'ub)'U)iL snbtus albido-coeruleuin. 



Habit. : Secca di (oi.jola, Napoli (Dellk Ch)a.)k). 



Yungia Lano. Tcnfaiufa marijiiudia jiliriformia ; rilli dorsidrs nulli; a/>pa- 

 rafiis iiiasriiliiiiis simiilrx; rami infrsfiiudrs dirrrfirulis {larris in /xiriis iiumrrnsos dorsi 

 i.itra aprriridrs. 



m 1. Y. aurantiaca i>AN(; {Planaria auraidiaca et faca {"^Vn., Th//saniuoou 

 aiiiaidiiiriiiii et ftanim Okrst., D)ks., Proccros auranfiacus Lano, antea, Polycelis 



