— 259 — 



eos orla, h numerosa v. nulla: — Gerjoma, Dianceu^ 



Orjthia, Tima^ Eirene, Saphenia^ Linuche^ Lymnorea? Fa- 

 vonia. . . . 



FAM. 12. R H I ZO STO M I N iE. 



Acalephae phanerocarpae, mediae et maximae, pileo hemi- 

 sphaerico, ore centrali o, cloacae saocis c. ovariis (v. testicu- 

 lis) 4-8 allernantibus; brachia 4-8 simpl. gracilia v. maxima 

 et ramosissima, vescam fluidam per haustoria co et lubulos 

 internos ad cloacam vehenlia; ad basin brachiorum spiracu- 

 la valvata, ad genitaha et cloacam dacenlia: — Ocjroe (Pe- 

 ron), Cephea, Cassiopea, Hhizostoma. 



Ordo IV. Ctenopliorae Eschscli. 



Acalephse exiguae et maximcC motu h activo et con- 



tractihtate varia gaudentes, rarius urentes, passim phospho- 

 rescentia excellentes, hermaphroditoe?. — Corpus ovale, glo- 

 bosum, oblongum, sacci- v. pyriforme, apterum v. in alas bi- 



nas (Cesto longissimas), 4 v. plures, hberas v. corpori h 



adnatas, polymorphas productum, saepius diaphanunij gelati- 

 nosum, achroum v. colorib. dilutioribus: roseo, coerulescente, 

 purpureo v. fusco tinctum, ghibrum, verruculosum v, ma- 

 culat., sohdius v. extra aquam marinam mox dehquescens. 



Cloaca centrahs h vasta, raro nulla, hiatu antico, saepius 



amplo (ore?) et poslico (anah?) minori, rarius duphci v. nul- 

 lo. TubuU chjhferi inlus cihati (vasa), pone cloacam orti, ad 

 ejus polum inferum ssepe in tubulum annularem coeuntes, 

 abhinc bis bifidi, ad extremitatem analem descendentcs et in 

 corpus demissi ejusque rete venulosum concomitantes v. in 

 alas producti, ctenidiis suppositi. Ctenidia (hneae saepius lon- 

 giludinales v. sulci lamelhs pedicellatis, biseriatis, metalhco- 

 iridescenlibus, motum liemicychcum continuum excrcentibus 

 obsiti) plerumque 8, rarius 6, 12, 9, a polo corporis postico 

 ad anticum decurrentia v. abbreviata v. alas ornantia. Ten- 

 tacula nulla t. 2-4, cihata et contractiha v. nuda, flexiha, 

 simpL V. ram«sa, e raedio corpore v. pone cloacam orta, ad 



