208 JOURNAL OF THE PLYMOUTH INSTITUTION. 
Smithia Hennahii : . Cattedown, Yealmpton. 
Spongiophyllum Sedgwickii 
ECHINODERMATA. 
Actinocrinus tenuistratus ; . Brixton, Staddiscombe, &c. 
Hexacrinus interscapularis 
Platycrinus pentangularis : 
Cyathocrinus megastylus : . Bovisand. 
Fragments of encrinital stems and joints are among the most 
abundant of the local fossils; but the heads are very rare. 
Crinoidal remains are particularly abundant in the calcareous shale 
along the southern edge of the limestone, from the Dockyard to 
Prince Rock; and at Mount Edgcumbe, Mount Batten, Bovisand, 
Staddiscombe, Yealmpton. 
CRUSTACEA. 
Fragments of trilobites have occurred at Mount Wise, and 
elsewhere. One of the best specimens discovered was found among 
some rubbish removed from the site of the present Guildhall at 
Plymouth. Trilobites have been found in slate at Yealmpton. 
Phacops latifrons : . Yealmpton. 
Phacops punctatus 
POLYZOA. 
Fenestella antiqua : - Mount Wise, Cattedown, Yealmpton, 
&e. 
Very common; frequently associated with the crinoids in 
calcareous shale. 
Fenestella prisca 4 . Cattedown. 
Ptylopora flustriformis : . Cattedown. 
Retepora repisteria 
BRACHIOPODA. 
Atrypa desquamata : . Mount Wise. 
Atrypa reticularis : . Mutton Cove, Mount Wise, Millbay. 
Atrypa aspera ; . Dockyard. 
Cyrtina heteroclita ; . Mount Wise. 
Leptena interstrialis ; : 
Merista plebeia ; . Mutton Cove, Mount Wise. 
Orthis arcuata ; . Mutton Cove. 
Orthis striatula : . St. George’s Hall, Staddiscombe. 
Pentamerus brevirostris : . St. George’s Hall. 
Productus subaculeatus ; 4 
Rhynchonella cuboides ; . Mutton Cove, Mount Wise, St. George’s 
Hall. 
