SUPPLEMENT, PLATE XV. 



Fig. 



1 — 5. Strophomena expansa, "^ovf. 1. A large example. Lower Llandovery, Mullock 



Hill. 2. Llandeilo Minuntion. 3 — 5. Lower 

 Llandovery, Mullock Hill, Ayrshire. Collection 

 of Mrs. R. Gray. 5 «, 5 <5. Interior of both valves. 

 (P. 194.) 



6. „ grandis. Sow? Upper Caradoc, Thraive, Ayrshire. Collection 



of Mrs. R. Gray. (P. 195.) 



7 — 8. „ re/ro/^ea?^, Salter. Llandeilo, Craighead. 8. Collection of Mrs. R. 



Gray. (The reference to the plate and figure was 

 inadvertently omitted at page 195.) 



9 — IL ,, imbrex, var, semiglohosina, Dav. 9. A specimen with coarse 



ribs from the Llandeilo, Balcletchie, Ayrshire. 

 9(3;. Enlarged. 10 a. Specimen from same locality 

 with finer ribs. 11. Interior of dorsal valve, 

 Craighead, Ayrshire. All in the collection of Mrs. 

 R. Gray. (P. 195.) 



12 — 14. „ antiquata. Sow. Middle Llandovery, Woodland Point, Ayrshire. 



Collection of Mrs. R. Gray. (P. 193.) 



15. „ pedeti, Linne. Middle Llandovery, Woodland Point, Girvan. 



Collection of Mrs. R. Gray. (P. 194.) 



16—22. „ deltoidea, Conrad. 16, 18, 19, 20. Llandeilo, Craighead. 17, 



18. Balcletchie. 22. Interior of dorsal valve, 

 enlarged Balcletchie conglomerate in Ayrshire and 

 collection of Mrs. R. Gray. (P. 197.) 



23—26. „ corrvgatella, Dav. 23, 24, and 26. Llandeilo, Balcletchie Cong., 



Ayrshire. 25. Middle Llandovery, Woodland 

 Point, same county and collection of ]\Irs. R. Gray. 

 (P. 192.) 



