148 Mr. F. Chapman on some 



the examples from Fiojel, and he also records it from Wool- 

 hope and Ironbridge, 



Silurian ; Mulde, Gotland. 



Primitia valida, var. brevi'ata, Jones & HoU. 



Primitia valida, var. breviata, Jones & Holl, 1886, Aun. & Mag. Nat. 

 Hist. ser. 5, vol. xvii. p. 410, pi. xiv. figs. 8 a, 6. 



Formerly described from the Wenlock Shales. 

 Silurian ; Mulde, Gotland. 



Primitia valida, var. angustata, Jones & Holl. 



Primitia valida, var. angustnta, .Tones & Holl, 1836, Ann. & Mag. Nat. 

 Hist. ser. 5, vol. xvii. p. 410, pi. xiv. figs. 4 a, b. 



This variety was also found in the Wenlock Shales. 

 Silurian ; Mulde, Gotland. Very rare. 



Primitia fahulina, Jones & Holl. 



Primitia fabulina, Jones & Holl, 1886, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. xvii. p. 408, pi. xiv. figs. 2 a, b. 



Two specimens, rather more elongate than the type figure, 

 were found in the Gotland series. Originally described from 

 the Wenlock series of Dudley Tunnel. 



Silurian ; Mulde, Gotland. 



Primitia elongata, Krause. 



Primitia elovgata, Krause, 1891, Zeitschr. deutsch. geol. Gesellsch, 

 vol. xliii. p. 494, pi. xxx. figs, Aa,b- Krause, 1892, ibid. vol. xliv. 

 p. 386, pi. xxii. fig. 2. 



This species has been described from the Silurian Drift- 

 gravel of Mark Brandenburg. 



Silurian ; Mulde, Gotland. Very rare. 



Primitia punctata, Jones, 



Primitia punctata, Jones, 1887, Ann. & Mag. Nat. Hist. ser. 6, vol. xix. 

 p. 193, pi. vii. figs. 9 a, b. 



Has been previously recorded from the Wenlock Shales of 

 this country. 



Silurian ; Mulde, Gotland. Very rare. 



Primitia humilis, Jones & Holl. 



Primitia humilis, Jones & Holl, 1886, Ann. & Mag. Nat. Hist. ser. 6 

 vol. xvii. p. 409. pi. xiv. figs. 6 a, *, 9 a-c. ' ' 



