BUDLEIGH-SALTERTON PEBBLE-BED. 351 



Only one specimen of this species has been found by Major Wyatt-Edgell, and 

 presented by him to the Museum of Practical Geology, I have not ventured on giving 

 it a specific name, and describe and figure the fossil for reference sake. 



26. Strophomena, sp. ? Dav., B. S. Sup., PI. XXXIX, figs. 2, 2 a. 



Only one internal cast of this fossil has been found in the Budlcigh-Salterton pebbles : 

 it belongs to the Museum of Practical Geology. 



The shell is semicircular ; hinge-line straight, a little shorter than the breadth of the 

 shell ; area narrow and denticulated on all its extent. 

 Length 5, width 7 lines. 



It seems to differ from all the other species I have seen from the locality, but the 

 material is not sufficiently complete to warrant us at arriving at a specific identification. 



27. Streptorhynchus crenistria ? Phil. Dav., B. S. Sup., PI. XXXIX, fig. 3. 



Streptorhynchus crenistria, Dav. Quart. Journ. Geol. Soc, vol. xxvi, p. 87, pi. v, 



fig. 26, 1869. 



Of this species only a fragment of the exterior of one valve has been found. It 

 seems to agree entirely with similar portions of S. crenistria, with which we have 

 compared it. The shell has been fully described in my Monograph, as well as in 

 the Carboniferous Supplement. It was found along with Spirifera Verneuilii, Rhynch. 

 inaurita, and Productus Vicaryi, and is consequently a Devonian fossil. 



28. Productus Vicaryi, Salter, sp. Dav., B. S. Sup., PI. XXXIX, figs. 14, 15. 



Lept.ena Vicaryi, Sailer. Quart. Journ. Geol. Soc, vol. xx, p, 296, pi. xvii, figs. 16, 



17, 1863. 

 Productus — Dav. Quart. Journ. Geol. Soc, vol. xxvi, p. 87, pi. vi, fig. 14, 1 869. 



Shell sub-hemispherical, semicircular, slightly broader than long ; hinge-line straight, 

 shorter than the breadth of shell. Ventral valve convex, regularly vaulted ; beak small, 

 incurved ; surface smooth, with irregular scattered tubular spines, more numerous on the 

 ears. In the interior of the valve the large cardinal or divaricator scars are well marked;, 

 and widely separated one from the other. Dorsal valve not known ; two specimens 

 measured — 



Length 12, width 13 lines. 



33 w 3 3> " >) 



