CAMBRIAN ROCKS IN SOUTH SHROPSHIRE. 671 



Pteropoda. 

 Theca lineata, Call. Shineton Shales. 



Heteropoda. 

 Bellerophon shinetonensis, n. sp. Shineton Shales. 



Brachiopoda. 



Lingulella Nicholsoni, Call. Shineton Shales. 

 Obolella sabrina?, Call. Shineton Shales. 

 Kutorgina cingulata, Bill. Hollybush Sandstone. 



ECHItfODERMATA. 



Macrocystella Marias, n. gen. et sp. Shineton Shales. 



Hydrozoa. 



Dictyonema sociale, Salt. Shineton Shales. 

 Dendrograptus. Shineton Shales. 



EXPLANATION OF PLATE XXIV. 



Fig. 1. Labrum of Asaphus (Asaphellus) Homfrayi, Salter, App. Ramsay, Geol. 

 N. Wales, Mem. Geol. Surv. vol. iii. p. 311, pi. viii. figs. 11-14, 1866: 

 enlarged. 



2. Asaphus (Platypeltis) Croftii, Call. : enlarged. A young specimen, 



showing seven thoracic segments only. Some specimens have as few 

 as two segments. 2a. Labrum of ditto, enlarged. 



3. Agnostus dux, n. sp. : enlarged. 



4. Conocoryphe monile, Salter, Cat. Cambr. Foss. p. 32 : enlarged. 4 a and 



4 b. Young forms of ditto, enlarged. 



5. Olenus Salteri, Call. : enlarged. 



6. 0. triarthrus, n. sp. : enlarged. Drawn from a crushed specimen. The 



head-spines should be more forward, as in 0. Salteri. 



7. Conophrys salopiensis, Call. : enlarged. There should be only six tho- 



racic segments. 



8. Lichapyge cuspidata, Call. Pygidium only : enlarged. 



9. Theca lineata, Call. : enlarged. There should be no transverse stria?. 



10. Bellerophon shinetonensis, n. sp. : enlarged. 



11. Lingulella Nicholsoni, Call. 11«. Interior of ventral valve, lib. En- 



largement of part of 11 a, showing the striated area and mesial ridge 

 of the pedicel-groove. 



12. Obolella sabrince, Call. Interior of dorsal valve : enlarged. 



13. Macrocystella Maries, n. gen. and sp. 



Discussion. 



Mr. Etheridg-e thought the paper a very clear exposition of per- 

 fectly new ground. The correlation of the Shineton Shales with the 

 Dictyonema-shales of the Malvern hills was important. These 

 labours of Mr. Callaway in a new locality were valuable on account 

 of his palseontological knowledge. The fossils exhibited by him 

 seemed to be distinct species. 



Mr. Hicks stated that two years ago he went over part of the 

 Shineton area ; and he congratulated Mr. Callaway on the comple- 

 tion of his work over difficult ground. The fossils generally may 

 be regarded as belonging to a Tremadoc fauna ; but some seem to 

 belong a little higher in the series, perhaps to the Arenig. 



Prof. Hughes was glad to see the direction in which the author's 



