IN THE MANCHESTER MUSEUM. 29 



(B) An endognath, the original of Fig. 7. 



Ludlow, Shropshire. 



Upper Ludlow or Transition Beds. Coll. Lightbody. 



Mandibular border of ectognath of Pterygotus Ludensis, Salter 

 (Natural size). 



(C) Part of the serrated border of a large ectognath 



(Woodward's woodcut 15). 



Railway Cutting, Ludlow, Shropshire. 



Upper Ludlow or Transition Beds. Coll. Lightbody. 



Pterygotus Banksii, Salter, 1856. 



1856. Himanopterus Banksii, Salter, Quart. Journ. Geol. Soc, xii., pp. 32 



and 99. 



1859. Pterygotus „ Id., Mem. Geol. Surv. Brit., Org. Rem., 



Monogr. i., pp. 51, 59, pi. xii., figs. 

 22, 40. 



1872. „ ,, Woodw., Brit. Foss. Merost., Palseont. Soc, 



p. 72, pi. xvi., fig. 2. 



Type. — (A) Complete carapace, original of Salter's 



Figure 22. 



Ludlow, Shropshire. 



Transition Beds. Coll. Lightbody. 



(B) Impression of fragment of antennary chela. Obverse 

 of original of above-mentioned Figure 40 of Salter. 

 Ludford Lane, Ludlow, Shropshire. 

 Upper Ludlow, or Transition Beds. Coll. Lightbody. 



