98 

 TABLE OP BRITISH LIASIC AND OOLITIC BBACHIOPODA. 



PART III. 



T3 

























03 





J 







■d 































c 

 Pi 



-: 







o 

























§ 







-z 





"H 



13 





















03 





C 





*0> 



-z 



>. 



s 



| 









Reference to this Monograph. 









09 



5 





Cu 



c 







c3 



3 



c 



c 



"1 

 .S 



c/5 <D 



& 



IS 



(Part III.) 



'A 



c 



so 



-J 



eg 



z 



p. 



c 

 O 



o 



'-— 



3 



03 



"9 



2 

 43 

 to 



o 



73 



O 





=5 



3 



- 

 O 



■a 



ho 



z 





Xtl 



o 



O w 



< 



Q 



1-3 



^ 



£ 



* 



t- 



03 



O 



£ 



o 



5 



O 



s 



^- 



1 



Lingula Beanii . . . 



Phillips 



1829 



p. 8, pi. i, f. 1 . . . 





* 



* 



1 bis 



„ ovalis 1 



Sow. 



1812 























* 





* 





2 



Orbicula 2 Townshendi . 



Forbes 



1851 



p. 9, pi. i, f. 2 . . . 





* 

























3 



„ reflexa . 



Sow. 



1829 



p. 10, pi. x, f. 8 





* 

























4 



„ Humphresiana 3 



Sow. 



1829 



p. 10, pi. i, f. 3 . . . 

























* 





4 bis 



„ latissima 4 . 



Sow. 































* 





5 



Crania antiquior . 



Jelly 



1843 



p. 11, pi. i, f. 4—8 . . 















* 















6 



„ Moorei . . . 



Dav. 



1851 



p. 12, pi. i, f. 9 . . . 







* 























7 



Thecidea Moorei . . . 



Dav. 



1851 



p. 13, pi. i, f. 10 . . 





* 

























8 



,, Bouchardii 5 . 



Dav. 



1851 



p. 14, pi. i, f. 15, 16 . 





* 

























9 



,, Dickinsonii 



Moore 



1851 



p. 14, pi. xiii, f. 19 . . 









* 





















10 



,, triangularis 



D'Orb. 



1849 



p. 14, pi. i, f. 11, 12 . 





* 





* 





















11 



„ rustica . 



Moore 



1851 



p. 15, pi. i, f. 4 . . . 







* 























12 



Leptsena Moorei . . . 



Dav. 



1847 



p. 17, pi. i, f. 18 . . 







* 























13 



„ Pearcei . 



Dav. 



1847 



p. 17, pi. i, f. 19 . . 







* 























14 



,, granulosa . . 



Dav. 



1850 



p. 18, pi. i, f. 20 . . 







* 























15 



„ liasiana . 



Bouch. 



1847 



p. 18, pi. i, f. 21 . . 







* 























16 



,, Bouchardii . 



Dav. 



1847 



p. 19, pi. i. f. 22 . . 





■• 



* 























1 Since describing the Lingulidm in Part III, p. 8, several specimens have been forwarded to me from the Oxford and 

 Kimmeridge Clays, which have satisfied me, that L. ovalis, Sowerby, (M. C, vol. i, p. 56, pi. 19, fig. 4, 1812,) is in reality an 

 Oolitic species, having been found by Mr. C. B. Rose, Mr. Middleton, and others, under the shape of impressions on grey or brown 

 clay, in Norfolk and Suffolk ; the species likewise occurs, with its shell preserved, in the Kim. Clay of Ely, where it has been 

 collected by Mr. Carter. I have therefore figured this form in pi. xviii, fig. 4, and it may be described as follows. Ling, ovalis, 

 Sow. — Shell oblong, oval, rather square at the beaks, anterior edge circular, slightly convex, rather depressed: surface ornamented 

 by a number of concentric raised lines of growth, length 7, width 3^ lines. L. ovalis seems much more regularly oval than 

 L. Beanii. Another small lanceolate-shaped Lingula has been discovered by Mr. Walton, in the Oxford Clay of Christian Malford, 

 measuring, length 3£, width not quite 2 lines, which may, perhaps, be another species. 



2 In page 7, of this Monograph, I quoted Prof. Owen in relation of the animal to the shell in Orbicula and Crania, 

 not having remarked that the Professor had subsequently reversed his opinions, in the French 'An. Sc. Nat.,' May, 1845. I am 

 indebted to Dr. J. E. Gray, of the British Museum, for the opportunity of examining, along with Mr. Woodward, the animal of 

 both Orbicula and Crania, and am now satisfied that the lower or attached valve to which the animal chiefly adheres, in both 

 these genera, corresponds to the perforated valve of Terebratula, so that whilst Crania and Orbicula form no exception to the 

 invariable rule that the shell of the Brachiopod is fixed by means of the ventral valve, they differ remarkably from the other 

 genera, in having the oral arms fixed to the ventral or attached valve. 



3 Many beautifully preserved shells of this species may be seen in the Cambridge Museum. 



4 In blocks of Kimmeridge Clay at Packefield, in Suffolk, Sowerby found associated with L. ovalis compressed impressions, 

 which he describes and figures, ' M. C.,' tab. 139, figs. 1 and 5, under the name of Patella latissima ; but these impressions have 

 much more the aspect of an Orbicula than a Patella. Sowerby describes them as follows : " Shell nearly orbicular, flat, smooth ; 

 shell very thin, concentrically undulated ; the umbo is excentric, the margins forming a very short oval." Unfortunately, I have 

 not been able to procure any example preserving the shell, so that its structure could not be examined. Mr. Woodward showed 

 me impressions of the same species, almost circular, on slabs of Kim. Clay from Braunston, Northampton, found by Miss Baker, 

 and now in the British Museum. A large impression, forwarded to me by Mr. C. B. Rose, measured 21 lines in length and 

 16 \ in breadth ; but, in general, the dimensions are much smaller, not exceeding 10 lines in length. 



5 Since describing this species, in page 14, Mr. Moore has discovered a very large adult specimen of Thecidea Bouchardii, 

 which, I find, measures, length 3 lines, width 4, and is the largest basic Thecidea as yet obtained. The same species, with 

 almost similar dimensions, has been discovered by Mr. Tesson, in the lias of Fontaine-Etoupefour, near Caen. (See Dav., 

 ' An. and Mag. of Nat. Hist.,' April, 1852.) 



