38 

 Hypothyridae, King. Arthropomata. 185©. 



Perm. Fosa. p. 81. Fam. Brach. cont. Isorhynchus, Hypothyris, Camero- 

 plioria, Uncites, Pentamerus. 



Ifypothyridse, Quenstedt. Arthropomata. 1871. 



Petref. Deutschl. ii, p. 27. Subsect. TerehratuUdcc cont. Ehynchonella, 

 Cameroplioria, Camarella, Airypa, Pentamerus, JJncilcs, Strigocephalus, Pec- 

 tunculus. 



Hypothyris, Phillips. ? Rhynchonellvlcc. 1841. 



Pal. Fos. Cornwall & Devon, p. 55. " Beak acute ; perforation below 

 it ;" only diagnosis ; no ex. cited and the name not used in the specific 

 descriptions. 



Bffypothya'is, King. BhyncJionellidce. 1840. 



Ann. Mag. Nat. Hist, xviii, p. 28. First sp. H. cuhoidts, Sow. sp. Geol. 

 Trans, v, p. 704, t. .56, f. 17. Dav. Mon. Dev. Brach. p. 65, t. xiii, f. 17- 

 21. {^^ Ehynchonella, Fisch.) 



Hypothyris, Forbes and flanley. EhyncJionellidw. 1 853. 



Brit. Moll, ii, p. 346. Sole ex. Anomia psittacca, Gmel. S. N. i, F. & H. 

 1. c. pi. Ivii, f. 1-3. {— Hemithiris, D'Orb.) 



Hysterolites, Scblotheim. {Incertce sedis.) 18S0. i(]| 



Petref. p. 247, pi. xvi-xviii. Subsect. Terchratulites cont. spinose fossil 

 braebiopods. (Cf. HysteroUthus.) 



HysteroSithes, Link. {Incertce sedis.) 1809. >1 



Beschr. Rostock, Samml. iv, p. 29. (Cf. HysteroUthus.) 



Hysterolithos, Grew. {Incertce sedis.) 1681. 



Mus. Soc. Reg. i^. 258. Non-binomial. (Cf. HysteroUthus.) 

 Hysteroiithiis, Aklrovandus. {Ineertm sedis.) 1648. 



Mus. met. p. 597. Non-binomial. Followed by Walch, Waller, Scluo- 

 ter, and other non-binomial authors. Included globose, spinose fossil bi- 

 valves, Spondyli, Producti, et cetera. 



HysteroUthus, Quenstedt. Spiriferidw. 1871. 



Petref. Deutschl. ii, p. 27, 472-4, genus Produciidai. Type Spirifer 

 ostiolatus, SchloTh. sp. Quenst. 1. c. atlas, pi. 52, f. 1-7, 12-Vi, ^:= Bystero- 

 lites hystericus, Schloth. Petr. 1820, p. 249, pi. 29, f. 1. {= Spirifer, Sow.) 



Hysteropetra, Cardan. {Incertce sedis.) 1554. 



De subtil, lib. vii, p. 222. Non-binomial. (Cf. HysteroUthus, Aldr.) 



iMaeqwivalves, Latreille. Arthropomata. 1835. i, 



Fam. Nat. R^gne An.* (Fam. Brach. = Incrquivalvia, Berth.) 



Inaeqiiivafivia, Berth. Arthropomata. 1 827. 



Germ. ed. Latreille, Fam. Nat. p. 196. Fam. Brach. cont. gen. Tere- 

 iratula, senso magno. 



Iiiarticiilata, Huxley. BracMopoda. 1864. I 



Lect. Class. An.* Intr. Class. An. 1869, p. 116. Ord. cont. Brach. in- 

 articulata. {^^ Lyopomata, Owen.) 



