26 CATALOGUE OF TYPES AND FIGURED SPECIMENS 



arrangement of the ornamentation of the shield is also very 

 distinct. I have, therefore, no hesitation in treating it as a 

 new species, and have named it Cyclus Scotti, after its dis- 

 coverer, Mr. George Scott, by whom it was presented, some 

 time ago, to the Manchester Museum, Owens College. 



Old Meadows Colliery, Bacup, Lanes. 



Gannister Coal Shales, Lower Coal Measures. 



Donor, G. Scott. 



TRILOBITA. 



Arionellus longicephalus, Hicks, 1872. 



1872. Arionellus longicephalus, Hicks, Quart. Journ. Geol. Soc, xxviii., 



p. 176, pi. v., figs. 24-26. 

 Types. — Three out of seven specimens upon which Dr. 

 Hicks founded the species. 



The originals of Figures 24 and 25 are minus the head. 



Maentwrog, N. Wales. 



Menevian. Coll. Homfray. 



Niobe Menapiensis, Hicks, 1873. 



1873. Niobe Menapiensis, Hicks, Quart. Journ. Geol. Soc, xxix., p. 46, 



pi. iv., figs. 5-9. 



Types. — Five out of nine incomplete specimens upon 

 which Dr. Hicks founded the species. The original of 

 Figure 5 is a glabella ; that of Figure 6 a whole body, but 

 wanting the head ; the remaining three are pygidia. 



Ramsey Island, and St. David's, S. Wales. 



Tremadoc Slates. Coll. Homfray. 



Niobe Homfrayi, Salter, 1864. 



1864. Niobe Homfrayi, Salter, Monogr. Camb. and Sil. TriL, Palseont. Soc, 



p. 164, pi. XX., fig. 3. 



1866. „ „ Id., Append. Ramsay's Geol. N. Wales, Mem. 



Geol. Surv., iii., p. 314. 



Type. — The original of Figure 3 in Salter's Monograph ; 



an almost complete specimen, wanting only the free cheeks. 



Penmorfa Church, Tremadoc, N. Wales. 



Lower Tremadoc Slates. Coll. Horn/ray. 



