25 



DaTidsonidse^ King. Arthropomata. 185©. 



Perm. Foss. p. 81. Fam. Brach. cont. DavidsorAa, Davidson, 1853, p. 

 51. (Mel. DavidsoniidcB.) 



Helthiridaea, Gray. Terebratulidce. 1848. 



Ann. Mag. Nat. Hist. ii. p. 438; lapsus (= Delthyridea, M'Coy). 



Deltliyridae, Phillips. Arthropomata. 1841. 



Pal. Foss. Cornwall and Devon, p. 54. Fam. Brach. cont. Orthw, Spirifcr, 

 Strigocephalus, Pentamerus, Cleiothyris. 



Delthyridae, Queustedt. Arthropomata. 1871. 



Petref. Deutschl. ii, p. 27, Mesopygia, sect, ii, cont. subsect. a and b. 

 a. b. 



Spirifer. Spiriferina. 



Choristites. Syringothyris. 



Cyrtia. Cyrtina, 



Trigonotreta. Suesaia. 



Deltliyridacea, F. Braun. Arthropomata. 1 840. 



Vexz. Bayr. Petref. p. 44. Fam. Brach. cont. Spirifer, Oriliis. 



Delthyridea, M'Coy. Arthropomata. 1844. 



Carb. Foss. Ireland, p. 130, f. 27. No ex. cited, but an unrecognizable 

 generic figure given. (Gtjnws incert.) 



Delthyridea, King. Terebratulidw. 18£»0. 



Perm. Foss. p. 141. Type Terebratula peciitiiformis, Schlotheim, Quenst. 

 Handb. Petref. p. 463, t. 37, f. 14. (= Trigonosemus, Kon.) 



Delthyras, Balman. Siiiriferidcc. 1838. 



Kongl. Vet. Acad. Handl. f. 1827, pp. 93, 99. First sp. 1. c. p. 120, t. iii, 

 f, 3, D. elevata, Dalm. a Silurian sp. of /Spm/er, teste. Dav. ^oi Ddtluj- 

 ris Mke. or von Buch. (= Spirifer, Sow.) 



Delthyris, Menke. TerehratuUdw. 1 8§0. 



Syn. Mus. Menkeanum, ed. ii. p. 96, as of Dalnian, but types not con- 

 generic. 1st spec. Terehratella dorsata, Lam. sp. Rve. Conch. Icon, v, f. 21 

 a-d. Not Delthyris, Dalm. (= Terehratella, D'Orb.) 



Delthyris, von Buch. ' Arthropomata. 1 837, 



Ueber Delthyris, p. 4. Genus a medley of forms belonging to various 

 groups. Not Delthyris, Dalm. 



Deltyrydaea, Davidson. TerehratuUdw. 1 856. 



Intr. in synonymy of Trigonosemue, p. 126; lapsus (= Delthyridea, 

 M'Coy). 



DicelloiMMS, Hall. Lyopomata. 1871. 



23d Regent's Eep. p. 246, pi. 13, f. 6-9, 1873. (Extras Mar. 1871, fide 

 Hall.) Types D. crassa, Hall, 1. c. ^ Oholella sp. Enll. and Oholellaf po- 

 lita, Hall, 16th Reg. Eep. p. 133, pi. vi, f. 17-21. Jan. 1864. (Cf. 

 Schmidtia, Volb. 1869.) 



Diclipsites, Eafinesque. {Jnceriw scdis.) 18S1, 



Mon. Biv. Shells Ohio, p. 8. No ex. cited. Gen, incert. 



