39 



Iphidea, Billings. Arthropomata?. 1874. 



Pal. Foa. Canada, ii, pt. i, (Aug.) p. 76, f. 44. Type I. hella, Billings, 1. c. 

 (Sil.) Interior unknown. 



Allocated to Kutorgina and Acrotreta by Billings ; but the 



figure resembles a small valve of KlitamhonUes anomala 



{Ortliisina anomala^ Dav. 1856, f. 21), Schlotheim. 



Isaiia, Eafinesque. Arthropomata. 18Si. 



Mon. Biv. Shells Ohio, p. 7. Sect. Terebrariorum cont. Terebratula, 

 Spinifer, Gonotrena, Amhlotrema. 



Isaaieimia, King. Terebratulidce. 18<30« 



Perm. Foss. pp. 81, 142 (uot p. 245). Type Tei'ebratuliies pecttmculas, 

 Schlotheiai, Qnenst. Handb. Petr. p. 466, pi. 37, f. 2.3-25. Ibid. Gray, 

 B. M. Cat. p. 104. ( = Megerlia.) 



IsBMeiaia, King (2). TerehratuUdw. 18S0. 



Perm. Foss. p. 245, (not pp. 81, 142). Type Terebratiditespectunculoides, 

 Schlotheim, Quenst. Handb. Petr. p. 464, pi. 37, f. 15-18. (Not of Gray 

 nor of King, p. 142.) (= Terehratclla, D'Orb.) 



IsDaiesata, Dall. Terehratulidw. 187fi« 



Am. Journ. Conch, vii, p. 6. Subg. Megerlia, King. Type Terebratula 

 sanguinea, Sow. Thes. Conchyl. i, p. 357, pi. 71, f. 71-73. {= Iimienia, 

 Gray ; King, p. 142 ; + Frenula, Dall.) 



Is©B'BiyiacEQis§3 King. Poramhonitidw. 18^®. 



Perm. Foss. p. 112. Type TerebraUdiies cnquirosiris, Schl. Vernenil, 

 Geol. Eus. ii, pi. iii, f. i. Cf. Dav. 1853, p. 99, t. vii, f. 120-126. (= For- 

 anibonites, Pand.) 



Ke¥§erIiBa§"ia, Pander. Obolidcef 1801. 



Bull. Imp. Acad. Sci. St. Petersburg, iii, p. 46, pi. ii, f. 1 a-g. Type 

 Orbicula ret'ersa, Vernenil, Pander, 1. c. Not seen. (Cf. Obolella.) 



KsBlgeBHa, Davidson. Terebratulidce. 1 8I»S. 



Mon. Brit. Cret. Brach. p. 42, t. iv, f. 15-28, t. v, f. 1-4. Type Tcre- 

 iratula lima, Defrance, Diet. Sci. Nat. liii, p. 156, 1828. Davidson, 1. c. 

 subg. Terebrattlla. 



KlitaMilJOBaites, Pander. Strophomenidce. 1830. 



Beitr. Geogn. Euss. Eeicbes, p. 70, t. iii, f. 14, t. xxviii, f. 16, 17. First sp. 

 Pronites adscendens, Pander, p. 72, pi. xvii, f. 6, Dav. 1856, pi. xi, f. 24, 26 

 ( + P. alta, P. I. c. f. 5, = var. prjBC. teste Murchisou; Chenu, Man. ii, p. 

 223, f. 1147, 1862). Sil. 



(Syn. Pronites, Pander, not llliger; Gonamhonites, Pander, Ortliisina, 

 D'Orb.) 



Genus fully described and all the species divided between 

 the subgenera Pronites and Hemipronites (q. v.). The 

 figures cited are given as generic merely. The first sp. of 

 Pronites {adscendens, P.) must be taken as the type of the 

 genus, especially as Pronites is preoccupied by llliger for a 



