GENERA ET SUBGENERA. 549 



Holice separaluin ex typo Hel. thyroidao Say , Beckio (iiul. p. 23.) sub- 



divisio Trit]o[)sis. 

 Mesomphix Rafinesquo in Journ. de phys. toni. 88. p. 423. — Genus ah He- 



lico disjuiiotuin e.\ typo Hel. laevigalae Rafiii. , a I3eck iiiler subgenera 



Helicis , e seclione tenuilabrium adoplatuin. 

 Mesomphyx Gray Syn. Br. Mus. 1842. p. 90. — Genus Heiicidaruni sect. f, 



typo non indicato. An idem ac praecetlens? 

 Microcystis Beck iud. p. 2. — Subgonus Naninao , ex typis novis. 

 Monacha Fitzinger syst. Ubers. p. 93. — Genus Helicoideorum e\ typo Hel 



sericeae, incarnatae et carthusianellae , ab Hartmann (sysl. (Jbeis.) inter 



subgenera Helicis adoptalum. 



JVanina Gray in Proc. Zool. Soc. 1834. p. 58. — Genus ab Helice sejunctum 

 ex typo Hel. citrinae L. , a Benson (Zool. Journ. V. p. 438.) et L. Pfeif- 

 fer (Symb. L p. 5. IL p. 4.) in Heiiceis adoptatum, Beckio (ind. p. 2.) 

 genus Vilrinidorum in subgcnera : Naninain , Microcystem et Ariophantam 

 divisum. 



Navicula Spix test. bras. t. 15. — Genus pro Bul. navicula Wagn. conslitutum, 

 a Villa (disp. syst. p. 18.) adoptatum. 



Notoplycha Agassiz Nom. zool. (nec in Charp. cat. 1837.) Conf.Herrin. ind. IL 

 p. 124. — Genus Pulmonatorum? .\n huc referendum? 



Obba Bock ind. p. 30. — Subgenus Helicis e sectione reflexilabrium ex typo 



Hcl. planulalae Lam. et mammillae F6r. 

 Obeliscus Beck ind. p. 61. — Subgenus Bulimi e sectione tenuilabrium , ex 



typis Bul. obtusati, decollati et Goodallii. 

 Obelus Hartmann Erd- u. Sussw. Gast. I. p. 138. — Subgenus Helicis ex 



typis Hel. polymorphae, Despreauxii , etc. 

 Ochlhephila B eck ind. p. 1 7. — Subgenus Helicis e sectione intusmarginatarum, 



ex typis Hel. bicarinatae Sow., polymorphae , pauperculae. 

 Odomphium Rafinesque enum. 1831. tesle Agass. Nom. — Genus Helicida- 



rum milii incognitum. 

 Odontomphalum Agassiz Nom. zool. ind. univ. vid. Odomphium. 

 Odonlosloma Orbigny moll. cub. I. p. 237. — Genus Cyclostomidarum , a L 



Pfeiffer (Monogr. I. p. 11.) inler Helicea adoptatum. 

 = Proserpina. 

 Odontostomus Beck ind. p. 54. — Subgenus Bulimi e sectione tenuilabrium, 



ex typis Bul. odontostomi, bahieusis, exesi. 

 Odontoslylus Gray Syn. Brit. Mus. 1840 et 1842. p. 90. — Genus Helicidarum 



sect. f. , ex typo non indicato. 

 Odonlotropis Agassiz Nom. Zool. ind. univ. vid. Odolropis. 

 Odotropis Rafinesque in Journ. de phys. tom. 88. p. 425. — Genus ab Helice 



separatum, a Ferussac (labl. p. XXXIl.) inter synonyma Helicodontae 



enumeratum. Typus non iiidicatus. 

 Omalonyx Orbigny voy. Amer. Zool. p. 230. — Novuni genus a Succinea se- 



paralum, ex typo Hel. unguis Fer., a Gray (Syn. Br. Mus. 1842 p. 90.) 



inter genera Helicidarum sect. c. enumeratum. 

 = Succinea. 

 Omphulina Raf inesque enum. teste Fer. in Bull. zool. 1833. p. 93, — Genus 



Helicidarum ex typo nou designato. 

 Omphaloploce Agassiz Nom. zool. (nec in Charp. cal. 1837.) Conf. Herrin 



ind. 11. p. 146. — Genus Pulmonatorum. An huc referendum? 

 Ophidermis A g a s s i z olim vid. seq. 

 Ophiodermis Agassiz Nom. zool. Ind. un. — Genus Puimonalorum. {= Sola- 



ropsis Beck? Herrm. ind. II. p. 153.) 



