4 6 THE BBACHIOPODA. 



The following species I place here as somewhat doubtful, and 

 which require more material to determine accurately. 



49. TEREBRATULA GRAVIDA, Szajnocha. 



1881. TEREBEATULA GRAVLDA, Szajnocha, Ein Beitrag zur Kennt- 

 niss der jurassichen Brachiopoden, plate 

 ii., fig. 3. 



I possess a few specimens which agree in general shape and 

 in the peculiar position of the beak with these figures. But as 

 the junction line of the valves is much straighter, and the end 

 view slightly different to what is represented by Szajnocha I 

 leave it till more specimens have been collected. 



Locality. Near Halfway House. 



50. TEREBRATULA FRAIVREI, Bayle. 



TEREBRATULA FRAIVREI, Bayle, Explication de la Carte Geologi- 

 que de la France, plate vii., fig. 1 . 



I have one specimen about 1 6 lines in length from the Par- 

 kinsoni zone of Broadwindsor, which seems to agree very well 

 with the figure given by Bayle. 



51. WALDHEIMIA TRIQUETRA, Sow. WALDHEIMIA 

 ORBA, Szajnocha. 



1825. TEREBRATULA TRIQUETRA, Sow., Mineral conchology, plate 

 cdxlv., fig. 1. 



1881. WALDHEIMIA ORBA, Szajnocha Eni Beitrag zur Kenntnise 

 der jurass. Brachiopoden, plate ii., fig. 5. 



I have one specimen from Broadwindsor, which agrees exactly 

 with Szajnocha' s figure, but I cannot see in what it differs from 

 Tereb. triquetra of Sowerby. Mr. Davidson wrote to me about 

 this specimen, " whether triquetra or not it quite agrees with 

 Szajnocha's figure, and if you had sent it to me without identi- 

 fication I should have referred it to one of the forms of triquetra. 



