Figure 58 Devonian fossils. (Gastropods, A-J ; cephalopods, K—O; crus- 

 tacean, P). A Bucanopsis leda, xj4. B Loxoncma noe, x2%- C Euotn- 

 phalus disjunctus, x}4. D Diaphorostoma lincatum, y.1/4. E, F Platyceras 

 ventricosum. G Bcmbexia sulcomarpinata, x^4- H Palcotrochus praecursor, 

 x2. / Euryzone lucitia, x2/3. / Platyceras spirale, xY 2 . K Mantkoceras 

 pattcrsoni (intumescens) , xyi. L Troclwceras discoideum. AY Tornoceras 

 bicostatum, xyi. N Ncphriticcras buccinum, x>4. O Orthoccras (Geisono- 

 ceras) subulatum, xl/3. P Pephricavis horripilata, xji 



