156 Mr. F. Chapman on some 



Family CytherellidsB. 

 Cytherella, Jones & Bosquet [1849]. 



Ci/therilla Smithii, Jones. 



Cytherella Smithii, Jones, 1887, Ann. & Mao^. Nat. Hist. ser. 6, vol. lii. 

 p. 192, pi. vii. figs. 15 a, b, & 16 a, h. 



This neat little species is common at Muldc, and they 

 appear to be favourably o^roun as regards size. It was 

 originally described from Woolhope. 



Silurian ; Mulde, Gotland. 



Order TRILOBITA. 

 Phacops (^Dalmanites) limulurus, Hall. 



Several specimens of young individuals of the above species, 

 but more or less fragmentary, were found in the Mulde clay 

 wa.shings. Fragments of the pygidium with the spine 

 attached were occasionally found. 



MOLLUSCOIDEA. 



Class BRYOZOA. 



Order GYiMNOL^MATA. 



Suborder Cyclostomata. 



? Spiropora intermedia^ Vine. Rare. 

 Ftstuh'pora, sp. Rare. 



Suborder Trepostomata. 



Callopora forida, Hall. Rare. 

 Trematopora soUda, Hall. Very rare. 

 Cladopora repens (Liniie). Very common. 

 . sparsa (Hall). Very rare. 



Suborder Cryptostomata. 

 Plilodictya lanceolata (Goldfuss). Rare. 

 Ehombopora Iineinodis, Ulrich. Common. 



