48 
Case 114. 
Case 115. 
Devonian Corals are well represented by Zaphrentis, 
Cyathophyllum, and Phillipsastraea, amongst 
others. Stromatoporoids are seen in the massive 
Actinostroma. Sea-lilies in Melocrinus with 
coiled stem, and Starfishes in Aspidosoma and 
Roemeraster, the latter a very fine species from the 
Upper Devonian slate of the Harz district. Other 
fossils include Spirifer laevicosta, interesting in being 
so nearly related to the Australian S. yassensis. 
Fig. 47. A Devonian Brittle-star — Roemeraster asperula (Roemer). 
From Bundenbach, Germany. 
Devonian Molluscs are represented by numerous genera, 
the Cephalopods being of particular interest and 
diversity (Phragmoceras, Oxyclymenia, and 
Gephyroceras). Devonian Trilobites are shown 
Homalonotus, Cheirurus), as also Ostracoda 
(Entomis). Numerous examples of Devonian 
Fishes are represented by Palaeospondylus, 
an ancient Hag-fish, as well as the armoured fish 
with appendages, Pterichthys. Representatives 
of the oldest Sharks are seen amongst these fossils, 
as Mesacanthus, and there are spines of fishes 
of the same group, as Climatius. 
