40 



genus of birds, and also because one of the subgenera must 

 be left by the rules of nomenclature to contain the typical 

 species, and therefore Pronites would necessarily lapse even 

 if it were not preoccupied. 



KoBalDicBiia, Woodward. Atrijpidcc. 1854? 



Man, Eec. & Foss. Shells, p. 231, f. 145; Bronu, Tliierr. iii, i, 302, 

 1H62. Type Producta Lconhardi, Wissiii.; lapsus, = Koninclcina, Suess. 



KoBileefliiaaa, Suess. Atnjpldcc. 1853. 



Davidson, 1853, p. 92. Type Producta Leoiihardi, Wissru. Dav. 1. c. 

 pi. viii, f. l'J4-198. (Trias.) 



KoniiacSisaaMlae, Davidson. Arthropomata. 1853. 



lutr. p. 51. Faiu. Brach. cout. Koninck'ma. 



KoBrliig'iBia, Davidson. OboUdcc. 1871. 



Mou. Sil. Brach. expl. ]}l. 1. lapsus, = Eiitorgiiia, Bill. 



KraJis^ia, Davidson. TerehratuUdce. 1853. 



Aun. Mag. Nat. Hist, ix, p. 369. Type K. rubra, Dav. 1. c. = Anomia 

 rubra, Pallas, Mis. Zool. pi. xiv, f. 2, 11, 1766. Eeeve, Conch. Icon, ix, f. 

 37, a-c. Not Kraussia, Dana, 1852, gen. crustac. {==Krau8sina Dav.) 



liraaissiaia, Davidson. Terebratididcc. 1859. 



Sitzungsb. K. Ak. Wiss. Wien.Btl. 37, p. 210, and Annals Mag. Nat. 

 llist. 18G1, p. 39. Proposed for Kraussia, Dav. praeoc. by Dana in Crus- 

 tacea. 



Ka'aosssBaaflEia, Paetel. TerehratuUdce. 1875. 



Fam. u. Gatt. Moll. p. 104, lapsus, =Erattssina, Dav. 



ffj^raBissiBilmse, Dall. TerehratuUdcv. 1870. 



Am. Journ. Couch, vi, p. 100. Subfam. TerebratuUdw cout. Krausslna, 

 Bouckardia. 



S^Eflopeai, Oken. Brachiopoda. 1815. 



Zool. vii, p. 249. Faui. Brach. cont. Tcrebratula, Acardo?, Orbicula, 

 Lingula. 



KiatorgflBia, Billings. {Incertce sedis.) B861. 



Paleoz. Foss. Can. Geol. Survey, i, p. 8, f. 9 (not 8 and 10). Type 

 OboU'lla dnqulata, Bill. Sil. (advance sheets Nov. 1861, 1. c). Subg. 

 OboltUa, Bill. 1. c. 



Billings's subgenus was established on the internal casts 

 of which fig. 9 is a representation. See note on p. 9, 1. c. 

 It is very doubtful if it belongs to the OboUdw at all. The 

 valves (6gures8 and 10) therewith delineated are evidently 

 not related to OholeUa, as already pointed out by Davidson 

 (Mou. Sil. Brach., p. 342, app,); and seem to belong not only 

 to another species, from the internal cast figured by Bil- 



.1 



