CAEPOLITHES. 1 29 



The seeds referred to CarpoUthes diospyriformis differ suflciently 

 from those of the preceding species to be regarded as a distinct 

 type. The example represented in Pig. 7, PI. XIII. may he 

 described as a typical seed of this species ; it consists of a slightly 

 asymmetrical pyriform cast, prolonged at one side of the broad base 

 into a short stalk (s.), and tapering distally into an ill-defined 

 apical region. This cast is frequently enclosed by an integument, 

 represented either by a cavity in the rock-matrix or by a distinct 

 shell, which appears to be absent from the base of the seed 

 (Figs. 6-7, PL XIII.). The smaller seed shown in Fig. 6 may 

 perhaps represent a distinct species, but so far as the material 

 enables one to form an opinion, I am inclined to refer both to 

 C. diospyriformis ; the smaller cast has the same lateral area of 

 attachment («.) as occurs ia the larger examples. The small cast 

 represented in Fig. 7, PL XII. also shows very clearly the laterally 

 situated basal scar (s.). 



I am unable to express an opinion worth consideration as to 

 the nature of the plant which bore Carpolitlies diospyriformis. 

 Specimens of C. diospyriformis are well represented in the Jermyn 

 Street Museum, the Manchester Museum, the Sedgwick Museum, 

 Cambridge, and in various museums in Yorkshire. 



V. 2513. PL XIII. Fig. 7. 



A cast 2-2 cm. in length, surrounded, except at the base, by 

 a shallow groove — probably representing an integument — which 

 appears to become continuous with the narrow apical neck of the 

 cast. Slightly to the left of the middle of the broader (basal) end 

 the cast is prolonged into a short stalk (s.). 



Stonesfield. Baler Coll. 



V. 2513fl. PL XIII. Fig. 6. 



A smaller and broader seed, possibly a distinct species, 1 -2 cm. 

 by 7 mm., of pea-shaped form, showing a lateral area of attachment 

 or short stalk at «. Baler Coll. 



V. 2513J. PL XII. Fig. 7. 



A small internal cast with a lateral scar, s., probably specifically 

 identical with V. 2513 (PL XIII. Fig. 7). Baler Coll. 



V. 4648. A well-preserved specimen, similar to that shown in 

 Fig. 7, PL XIII. 



