Trachysoma scabrum (Bell 1858) 

Glyphea scabra is a synonym of Trachysoma scabrum (Bell 1858), This identification was confirmed by Charbonnier et al 2013.

Trachysoma scabrum (Bell 1858) is a particularly rare species of lobster found in the London Clay and is a species of glypheoid lobster. Glypheoid lobsters were thought to be extinct before Neoglyphea inopinata was discovered. 

Acknowledgments:

Thank you very much Thomas Miller and Thomas Wells for allowing usage of the images on this page.

Thanks to Jeff Saward for the corrections on this page 

Refrences:

https://en.wikipedia.org/wiki/Glyphea 

https://en.wikipedia.org/wiki/Glypheoidea 

Phylogeny of fossil and extant glypheid and litogastrid lobsters (Crustacea, Decapoda) as revealed by morphological characters 

https://commons.wikimedia.org/wiki/File:Crustac%C3%A9FossileVivantNeoglypheaInopinata.jpg 

https://www.gbif.org/occurrence/439995156 

https://marinespecies.org/aphia.php?p=taxdetails&id=1619329 

Further Reading:

Three new genera and species of crabs from the Lower Eocene London Clay of Essex, England

https://www.essexfieldclub.org.uk/portal.php/p/Geology+Site+Account/s/Cranham+(temporary+exposures+of+London+Clay)/o/Cranham+(temporary+exposures+of+London+Clay) 

ENGLISH EOCENE CRUSTACEA (LOBSTERS AND STOMATOPOD) 

DINOCHELUS STEEPLENSIS, A NEW SPECIES OF CLAWED LOBSTER (NEPHROPIDAE) FROM THE LONDON CLAY (EOCENE) OF ENGLAND  

https://en.wikipedia.org/wiki/Glyphea 

A monograph of the fossil malacostracous Crustacea of Great Britain  

https://onlinelibrary.wiley.com/doi/epdf/10.1111/cla.12088