DAVIDSON — ON BRITISH CxVRBONlFEROUS BRACHIOPODA. 
Catalogue of British Carboniferous Braeliiopocla. 
Rhynclionella ? gregaria, M'Coy, Synopsis, pi. xxii., fig. 18, 
1844 ; and Dav. Carb. Mon., pi. xv., figs. 27, 28. Not 
sufficiently studied. 
^ Bh. nana, M'Coy, Synopsis, pi. xxii., fig. 19, 1844 ; Ire- 
) land. 
J R. semisidcata, M'Coy, Synopsis, pi. xxii., fig. 15 ; Ire- 
(. land : doubtfal species ?. 
Gama/roiolioTia crumena, Martin, Petrif. Derb., pi. xxx\'i., 
fig. 4, 1809 ; and Dav. Mon., pi. xxv., figs. 3, 9, = C. 
Schlotheimi, V. Buch. 
Yar. ? T. proava, Phil., Geol. of York., vol. ii., pi. xii., 
fig. 37, 1836 ; and Dav. Mon., pi. xxv.,'fig. 10 ; England. 
glohulma, Phil., Ency. Met., vol. iv., pi. iii., 
fig. 3, 1834 ; Dav. Mon., pi. xxiv., figs. 9-22 ; T rliom- 
hoidea,, Phil., = T. seminulo., Phil., = H. longa, 
M'Coy ?. 
isorhyncJia, M'Coy, Synopsis, pi. xviii., fig. 8, 
184i ; and Dav. Mon., pi. xxv., figs. 1, 2. Not suffi- 
ciently studied, from want of material. 
? laticliva, M'Coy, Br. Pal. Foss., pi. iii.D, 
figs. 20, 21, 1855 ; Dav. Mon., pi. xxv., figs. 11, 12 
Not sufficiently studied, from want of material. 
Strophomena (rhomhoidalis) var. analoga, Phillips' Geol. of 
York., pi. vii., fig. 10, 1836 ; Dav. Mon., pi. xxviii., figs. 
1, 13, = P. depressa, Sow., = P. rugosa, His., = C. 
quad/rangulojTis, Steininger, = L. tenuistriata, Sow., 
= L. distorta, Sow., = L. nodidosa, Phil., = L. miilti- 
rugata, M'Coy. 
Streptorhynchus crenistria, Phillips' Geol. York., pi. ix., fig. 
6, 1836 ; and Dav. Mon., pi. xxvi., fig. 1, pi. xxvii., figs. 
1-5, and 10 ?, pi. xxx., figs. 14-16, = 8. senilis, Phil., 
= Lept. anomala, J. de C. Sow., Min. Con., tab. dcxv., 
fig. Ih, = 0. umhraculum, var. Portlock, = 0. Bechci, 
M'Coy, = 0. comata, M'Coy, = 0. caduca, M'Coy, 
= 0. iceohuclc and 0. rohusta. Hall. 
* Yar. A. T. araclmoidea, Phillips' Geol. of York., vol. ii., 
pi. xi., fig. 4, 1836 ; Dav. Mon:, pi. xxv., figs. 19-21, 
pi. xxvi., figs. 2-4 (lower fig.) 5,6, = O. Tortlockiano, 
Semenow ; England, Scotland, Ireland. 
Yar. B. 8. Kellii, M'Coy, Synopsis, pi. xxii., fig. 4, 1844 ; 
Dav. Mon., pi. xxvii., fig. 8 ; England, Scotland, Ireland. 
Yar. C. 8. cylindrica, M'Coy, Synopsis, pi. xxii., fig. 1, 
1844 ; and Dav.', pi. xxvii., fig. 9 ; Ireland. 
* Yar. D. 8. radialis, PliiUips' Geol. York., pi. xi., fig. 5, 
1836 ; Dav. Mon., pi. xxv., figs. 16-18 ; England, Scot- 
land, Ireland. 
Orthis resupinata, Martin, Petrif. Derb., pi. xlix., figs. 13, 
14, 1809 ; Dav. Mon., pi. xxix., figs. 1-6, and pi. xxx., 
figs. 1-5, = 0. connix'cns, Phil., = 0. gihhera, Portlock, 
= 0. latissima, M'Coy. 
— Michelini, L'Eveille, Mem. Soc. Geol. France, vol. ii., 
figs. 14-17, 1835 ; Dav. Mon., pi. xxx., figs. 6-12, = 8. 
