136 Platelminthes. — Trematodes. 



pedicello longo subbasilari ventrali affixum. Long. corporis 4, lat. 1, longit. pedi- 

 celli acetabuli 1 mm. 



H a b i t. : Brama mvdHcrrama, in faucibus (Xokdmann). 



2. Subfam. Monocotylidae Tschkg. Corpus orbiculare , sine acetabulis 

 oralibus; acetabuliini ventrale minimum aut normale, armatum ; apertura genitalis 

 media: vai;ina (lujtlex. Cuti et brancliiis piscium marinorum aftixae. 



Calicotyle Dies. Corpus i^lamnn Jatc ovahtm ; capiit corpori continnnm ; os 

 snbtermiiKilc frausverse ellipticnm ; acefahnhim basilarc vcntrale nrcciforme, scptanf/nlare, 

 intns (Jisscpi)nentis 7 c ccnfro radiantiJjus, 5 inermibus, 2 uncino raJido vaf/inato 

 retracfili armatis; nperiurac genifales infra os , oblique Juxfaposifae , approximatae, 

 fractus infcsf/nalis Jilcruris caccus. Ovipara. 



1. C. Kroyeri Dies. Corpus postice emarginatum, albo-flavum, transparens, 

 ovariis ferrugineis limbum cingentibus, interdum utraque extremitate involutum; 

 acetabitlnm magnum album. Long. 2^/e, — 3^4 lin., lat. 2 — -2^/8 lin. 



Habit. : Jfaja J/afis, li. clavfda, aliaeque species, cuti aftixa : Trieste (Wier- 

 zejsky). 



Monocotyle Tschhg. Accfabulum nnicum pjosticum ventralc, 8-radiatum, 

 nncinis duobus transversis; os ampJum sucforinm. 



1. M. myliobatis Tschbg. Corpus elongatum, postice paullum dilatatum. albi- 

 dum. Long. ") nim, latit. 2 mm, diam, acetalnili 1,") mm. 



Habit. : 3[//liob(ifcs a/jiilla, ad branchias: Xapoli |TAscHi:xi!KH(i). 



2. Fam. POLYSTOilEAE Tschbg. Corpus elongatum, antice acuminatum. 

 interdum valde attenuatum, postice discum adhaesivum, interdum appendiculatum 

 formans ; acetabula oralia nulla aut duo ; organa adhaesiva terminalia acetabula 

 aut retinacula chitinacea formantia ; apertura genitalis media ; caimlis vaginalis 

 simplex aut (lui)lex, apertura mascula saepe uncinis chitinaceis armata; ova ple- 

 rumque Hlis duobus longis. Ihanchiis piscium, Amphibiis aut Reptilibus adhaerentes. 



1. 8ul)fam. Octobothrii(dae Tschbg. {Ocfocot//lidae Van Ben.). Acetabnla 

 antica duo divergentia; discus terminalis orgauis adhaesivis 4, 6 aut 8 et interdum 

 etiam uncinis. 



Octobothrium F. .S. Leick. {Octosfoma Kuhn, Ocfocofi/lc Dies.). Corpus 

 eJongatuiii. (Ic/iycssion, anficc (dfcnuafum, jiosficc dilafatum ; acctabuJa (icto in postico 

 corporis mfm/inc biscriata, sessiJia aut pcdunc/iUda, uncinis auf trabcculis cJiitinaceis 

 snffnlfa ; accfabiila diio iii cavo oris. 



1. 0. scombri Nordm. {Octosfoma scombri Kuhn, Ocldcoti/lc friiiicufa Dies., 

 0. scimibri Hksse et Van Kkx.). Corpus lanceolatum, lineare, valde de])ressum : 

 caput acuminatum ; acetabula duo anterioi'a sub ore; os denticulatum ; apertura 

 genitalis uncinis 10 ijracdita , in series duas dispositis; extremitas posterior un- 

 cinis 4, anterioribus majoribus nutnita. 



Distrib. : Scomber scomJicr: fretum Hritannicum. 

 Hal)it.: ScDiiibcr cullas: Xapoli (Taschkxbkrg)- 



2. 0. leptogaster F. S. Lkuck. {PJacnpJccfiinum \Dis(v>coti/lc olim] Icjifo- 

 (jasfcr DiKs.). ('(iipus anti(;(' clliiitico-lanceolatum, postice tilitormc, basi in discum 

 posticc cmarginatum dilatatum. Longit. J)— 25 mm. 



Habit.: CJiimacra wonstrosa: Nizza (Ct. Wagenkr). 



3. 0. Merlangi Nordm. {Octostoma Mcrlaniii Kunx, OcUiplcitaniim [Diclido- 

 pJiiiia oliin) biiniiidll/' DiEs.). Corpus antice valdc attcnuatuin clongatum, postice 

 latuiii (Icprcssum; acctabula jiostica longe pcdunculata ; fusco-rnbrnm. Long. 4^,2 lin., 

 pars attcnuata 2 lin., pais postica 2 '/2 lin. 



Distrib. : .\(l branchias Mcrlaniji c/immuiiis: Mare germanicum. 



