1873.] DAVIDSON SCOTTISH JURASSIC BRACHIOPODA. 197 



T. ovoides, 8ow., = T. rex, Lankester; but it differs from it in the 

 absence of any mesial depression in the dorsal valve, and carination 

 in the ventral one. It was found by Mr. Judd in the Upper 

 Oolite of Garty, Sutherland ; and I have much pleasure in naming it 

 after the Rev. J. M. Joass, who has devoted so much attention to 

 the Jurassic formations of that part of Scotland. 



Terebratttla (or Waldheimia) humeralis, Eoemer. PI. Till. 

 figs. 4a, 46. 



Specimens agreeing in every particular with the T. humeralis, 

 Eoemer (of which an excellent description and figures will be 

 found at p. 414 of the ' Description Geologique et Paleontologique 

 des etages Jurassiques de la Haute Marne,' by Messrs. P. de 

 Loriol and E. Royer), appear to be common in the Upper Oolite of 

 Garty, in Sutherlandshire. In France, according to the palaeontolo- 

 gists above named, it occurs in the " Calcaire a Astartes " or upper 

 portion of the Coralline Oolite, a zone underlying the Kimmeridge. 

 It had not been hitherto recorded as a British species. 



Terebratttla bisueearcinata, Schlotheim. PI. VIII. fig. 5. 



Internal casts of this species are extremely abundant in the 

 Coralline Oolite, or zone of Ammonites perarmatus, Lower Calcareous 

 Grit of Braamberry Hill in Sutherlandshire. In 1862 I mistook it 

 for T. perovalis, which some examples of Schlotheim's species 

 much resemble ; but while comparing the numerous Scottish spe- 

 cimens collected by Mr. Judd with some typical forms of T. bisuf- 

 farcinata from the Korallen-Kalk of Muggendorf, recently sent to 

 me by Dr. Sandberger, the identity of the Braamberry-Hill speci- 

 mens became apparent. 



In the same locality Mr. Judd obtained two internal casts, about 

 an inch in length, of a well-characterized Waldheimia ; but a further 

 search for more specimens will be needed before attempting its 

 specific identification. 



Internal casts of a ffliynchonella, much approaching B. pinguis, 

 Rcemer, have also been found in a light-yellow sandstone, slightly 

 tinged with red, belonging to the Upper Oolite of Allt-na-Cuil, in 

 Sutherlandshire ; but as the Scottish Liassic and Oolitic Brachio- 

 poda will, I hope, be fully treated in the forthcoming supplement to 

 my monograph, it may be preferable to reserve all further details 

 lor that publication. 



EXPLANATION OF PLATE VIII. 



Figa. 1, 2. — Bhynchonclla Sti/herlandi, sp. n. Upper Oolite, Garty. 



Figs. 3, 3a. — Terebratula Jaom, sp. n. Upper Oolite, Garty. 



Figs. 4, 46. — Terebrafula humeralis, Kceni. Upper Oolite, Garty. 



Pig. 5. — Terebratula bisuffarcinata, Schl. Lower Calcareous Grit, Braamberry 



liiii. 



