- 57 — 



monopleiirofiranchia Blninv. contin. 



Subaplysiacea, Aplysiacea, Patelloidea, Akera. 

 Cf. Sow. jun. Manual ed. 2a p. 191. 

 Risso 1826. Hist. IV. p. 42. — tertius ordo Gaste- 

 ropodum. Familiae: Aplysiana, Acera. 

 = Tectibranchiata Cuvier. 

 JHonoplenrobrancliia Gray 1821. Lond. Med. Rep. * 

 tesle Desb. 

 Tertius ordo Cryptobranchiorum. Genera: Umbrella, 

 Pleurobranchia , Laminaria. 

 = Pleurobranchia Desh. 

 Iflonopleurobrancltiata Blainv. Sow. jun. vid. Mono- 



pleurobranchia Blainv. 

 monoplex Pebry 1811. Conchol. * teste Feruss. 1820. 

 Journ. de phys. tom. 90. p. 284. 

 Etym. Vocab. hybr. : f.i6vog^ solus; plico. 

 A Muricibus separatum genus. Typus: Murex tripus 

 Ch., vel M. olearium Linn. 

 = Tritonium (pars) Cuv. 

 Honoptygma Lea 1833. Contrib. to Geol. * > F^r. 1835. 

 Buli. zool. p. 10. et Leonh. et Br. Jahrb. 1835. 

 p. 614. Conf. Bronn Leth. p. 1027. et G.B.Sow. 

 jun. Conch. Man. ed. 2a p. 192. 

 Etym. f.i6vog, unicus; nrvyfia, plica. 

 A Tornatellis non bene distinctum genus. Vid. etiam 

 Monotygma. 

 Iflonotlialama Lamck. vid. Cephalopoda. 

 monotlialami Schum. 1817. Ess. p. 19. 23. 



Etym. f.i6vog, unicus; ^ala/nog, cubiculum. 

 Priina sectio Vermium testaceorum (cui opponuntur 

 Polythalami, i. e. Zoophyta). Subsectiones : Echi- 

 noidea, Testacea multivalvia, Testacea bivalvia, 

 Testacea univalvia. 

 IVIonotlialamia Breyn 1732. Diss. phys. 



Prima divisio Testarum tubulosarum. Classes: Tu- 

 bulus, Cochlidium. 

 Voi. II. 4 ' * 



