490 MISS E. M. E. WOOD ON THE LOWER LUDLOW [May I9OO, 



1892. Monograptus bohemicus, Barrois, ' Distribution des Graptolites en France ' 

 p. 99. 



1897. Pristiograptus bohemicusy Freeh, ' Lethaea Geognostica,' vol. i, pt. iii, p. 664. 



Eetiolites nassa, Holm. 



1890. Betiolites nassa, Holm, ' Gotlands Graptoliter ' p. 25 & pi. ii, figs. 12-14. 



1895. B. nassa, Wiman, 'Ueber die Graptolithen ' Bull. Geol. Inst. Upsala, 

 vol. ii, no. 2, pis. ii & xi. 



1899. B. nassa, Perner, ' Etudes sur les Graptolites de Boheme ' pt. iii, sect. 6, 

 p. 23, text-figs. 32 a-32 b & pi. xvii, figs. 20-21. 



EXPLANATION OF PLATES XXV & XXVI. 

 Plate XXV. 



[All the figures are of the natural size.] 



Fig. 1. Monograptus dubius ( Suess). 1 a. Elton Lane (M. serra of Mr. Hop- 



kinson's collection) ; 1 b. Stormer Hall. 

 Figs. 2-4. M. vulgaris, sp. nov. Trefnant-Middletown Brook, Long Mountain 



(Loc. 3 in PL XXVI). 



3. Var. a nov. Trefnant-Middletown Brook, Long Mountain 



(Loc. 5 in PI. XXVI). 



4. Var. (3 nov. Lane Farm, Long Mountain. 



5&6. M. tumescens, sp. nov. 5 a. Llettygynfach, Long Mountain. Coll. 

 C. Lapworth. 5 b. Elton-Ludlow Road, Gorsty Farm. 



6. Var. minor (M'Coy). 6 a. Elton-Ludlow Eoad. 6 b. Elton 

 Lane. 

 Fig. 7. M. gotlandicus, Perner. Old Dingle Mill, Long Mountain. Coll. 

 W. W. Watts. 



8. M. comis, sp. nov. 8 a. Elton-Ludlow Road. 8 b. Reverse side of 8 a. 



9. M. ultimus, Perner. 9 a. Road between County Bridge and Ucheldre, 



Long Mountain (Loc. 15 in PL XXVI). Coll. W. W. Watts. 



9 b. Kosor, Bohemia. Coll. C. Lapworth. 



Figs. 10-12. M.colonus (Barrande). 10 a. Butowitz, Bohemia. Coll. C, Lap- 

 worth. 10 b. Helm Knot, Lake District. Coll. Nat. Hist. Mus. 

 S. Kensington. 10 c. R. Irfon, Builth (Loc. C in fig. 5, p. 432). 



10 d. Adferton. Coll. J. Hopkinson. 



11. Var. ludensis (Murch.). Llanfair, Montgomeryshire. Coll. 



Dr. Humphreys, Llanfair. 



12. Var. compactus nov. Elton-Evenhay Lane. 



Fig. 13. M. Bcemeri (Barr.). a & b. Trefnant-Middletown Brook, Long 



Mountain (Loc. 6 in PL XXVI). 

 Figs. 14-16. M. varians, sp. nov. 14 a. Old Dingle Mill, Long Mountain. 



14 b. Road above Garbett's Hall, Long Mountain. 



15. Var. (3 nov. Elton Lane. 



16. Var. a nov. 16 a. Stormer Hall. 16 b. Mary Knoll, near 

 Ludlow. Coll. J. Hopkinson. Figured in Ann. & Mag. Nat. 

 Hist. ser. 5, vol. v (1880) pi. iv, figs. 3 b & 3 d. 



17. Var. pnmilus nov. 17 a. Elton Lane (Loc. D in fig. 2, p. 426). 



17 b. Ibid. (Loc. G in fig. 2). 

 18-20. M.chimara (Barr.). 18 a, c, d. Elton-Ludlow Road. 18b. Stream 

 from Ucheldre to Trewern Bridge, Long Mountain. Coll. W. W. 

 Watts. 



19. Var. Salweyi (Hopk.). 19 a. Stormer HaU. 19 b. Ibid. 



Coll. J. Hopkinson. Figured in Ann. & Mag. Nat. Hist, 

 ser. 5, vol. v. (1880) pi. iv, figs. 2 a & 2 b. 



20. Var. a nov. Elton-Ludlow Road. 



21 & 22. M. leintwardinensis, Hopk. 21 a, b. Church Hill Quarry, near 

 Leintwardine. Coll. J. Hopkinson. 



22. Var. incipiens nov. 22 a. Montgomery Road. 22 b. Long 

 Mountain. Coll. W. W. Watts. 



