BRITISH DEVONIAN BRACHIOPODA. 4S 



Tereb. subcoediformis, Schnur. Eifel. Brach., p. 186, t. 25, fig. 6, 1853. 

 Rhyn. parallelepida, Sandberger. Ehein. Schicht. Nassau, p. 339, t. 33, fig. 12, 



1856. 

 — PRiMiPiLARis, Bav. Br. Dev. Mon., p. 66, t. xiv, figs. -4, 5, 6, 1865. 



At page 507 of his 'Die Bracliiopoden des Mittel- und Ober-Devon. der Eifel,' 1871, 

 Dr. Kayser gives the above synonyms of the Ter. parallelepida of Bronn, and assures me 

 by letter that the species described and figured by myself and others as the B.pnmipilaris, 

 Von Buch,^ is in reality Bronn's B. {T.) parallelepida \ also that in Von Buch's species 

 the ribs are dichotomous, but simple m parallelepida. If therefore. Dr. Kayser is quite 

 correct in his assertion, it will be necessary to erase the observations at p. 67 of my ' Dev. 

 Mon.' 



BIi. parallelepida is a common shell in Middle Devonian at Lummaton, near Torquay, 

 and occurs also at Hope's Nose. In order to feel certain with respect to this identifica- 

 tion I forwarded one of our English specimens to Dr. Kayser ; and in his answer he says, 

 " It is the true Bh. parallelepida of Bronn, and exactly similar to the specimens of the 

 shell that are found at Velmar, in Nassovia, as well as to the variety which Schnur called 

 anffulosa, with the exception that the dimensions of this last are greater." 



34. Rhtnchonella Phillipsii, Bav. Dev. Sup., PI. II, fig. 14. 



Shell subpentagonal, rather ^ wider than long ; dorsal valve moderately convex, 

 divided longitudinally into three almost equal portions, the central one consisting of a 

 moderately elevated, flattened, mesial fold, presenting in profile from the middle of the 

 shell a straight line to the front ; lateral slopes of the fold wide ; lateral portions of valve 

 regularly curved ; ventral valve not quite as convex or deep as the dorsal one ; sinus 

 deep, wide, and flat ; beak much incurved. Surface of the valves ornamented with from 

 twelve to fifteen simple angular ribs, which commence at a little distance from the beak 

 and umbo ; five strong ribs occupy the fold, four the sinus. The ribs on the lateral 

 portions of the shell are not as strong as those on the fold. 

 Length 11, width 12, depth 6 lines. 



Obs. — This species has puzzled me much. I have seen three examples of the shell 

 all agreeing in shape and character. One was found by Mr. Whidborne, another by Mr. 

 Lee, and a third belongs to the Torquay Natural History Society, all from the Middle 

 Devonian of Lummaton, near Torquay. It is certainly not Bh. Daleidensis, Schnur, or 

 Bh. inaurita, Sandberger, with which I have compared it. Dr. Kayser, from a drawing I 

 sent him, would not venture upon any decided opinion as to the species to which it might 



1 'tTber Terebrateln . Abbandlungen der Koniglichen Akademie der Wissenscliaften zu Berlin,' 

 p. 88, tab. 2, fig. 6, 1834. 



